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Jinhong Yuan - One of the best experts on this subject based on the ideXlab platform.
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mimo wiretap channels secure transmission using Transmit Antenna selection and receive generalized selection combining
IEEE Communications Letters, 2013Co-Authors: Nan Yang, Maged Elkashlan, Phee Lep Yeoh, Robert Schober, Jinhong YuanAbstract:We propose and analyze Transmit Antenna selection with receive generalized selection combining (TAS/GSC) for physical layer security enhancement in multiple-input multiple-output wiretap channels. In this protocol, a single Antenna out of NA Antennas is selected at the Transmitter and LB Antennas out of NB Antennas are combined at the legitimate receiver. We characterize the physical layer secrecy of TAS/GSC via our new closed-form expressions for the exact and the asymptotic secrecy outage probability. We demonstrate that the maximum secrecy outage diversity gain of NA NB is achieved.
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Adaptive Transmit Antenna selection with pragmatic space-time trellis codes
IEEE Transactions on Wireless Communications, 2006Co-Authors: Jinhong YuanAbstract:We consider the problem of selecting a subset of Transmit Antennas in MIMO systems to minimize error probability when only partial channel information is available at the Transmitter. An upper bound for error probability of space-time coded Transmit Antenna selection scheme conditioned on the channel state information is presented. Based on the performance analysis, a criterion of selecting a subset of available Transmit Antennas to minimize the upper bound on the PEP is proposed. In contrast to other Transmit Antenna selection schemes for uncoded transmission or with a fixed number of Antennas within the selection subset in the literature, the proposed scheme can adaptively select both a variable number of Transmit Antennas and their corresponding space-time codes for transmission. Furthermore, we present pragmatic space-time trellis coding schemes for slow Rayleigh fading channels. The principal advantage of the schemes is that a single encoder and decoder can be used for systems with a variable number of Transmit Antennas. The performance of the pragmatic space-time codes with adaptive Antenna selection and the effect of the imperfect channel estimation on performance are evaluated by simulations. It is shown that the adaptive selection offers considerable Antenna selection gain relative to the Antenna selection system with a fixed number of Antennas within the selection subset
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Transmit Antenna shuffling for quasi-orthogonal space-time block codes with linear receivers
2006Co-Authors: Yi Yu, Sylvie Kerouedan, Jinhong YuanAbstract:Recently, various quasi-orthogonal space-time block codes (QO-STBCs) have been proposed in multi-input and multi-output (MIMO) channels. These codes achieve a full code rate (R=1) at the expense of a loss in the diversity gain. In this paper, we propose a Transmit Antenna shuffling scheme for QO-STBCs. We show that by adaptively mapping the space-time sequences of the QO-STBC to the appropriate Transmit Antennas depending on the channel condition, the proposed scheme can improve its Transmit diversity with limited feedback information. The performance of the scheme with various numbers of shuffling patterns is analyzed. The bit error probability of the schemes is evaluated by simulations. It is demonstrated that with the linear zero-forcing (ZF) and the minimum mean squared error (MMSE) receivers, the closed-loop QO-STBC of four Transmit Antenna shuffling patterns can achieve almost the same performance as the ideal 4-path diversity by using two feedback bits and it is about 4-5 dB better than the open loop schemes.
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analysis of Transmit Antenna selection maximal ratio combining in rayleigh fading channels
IEEE Transactions on Vehicular Technology, 2005Co-Authors: Zhuo Chen, Jinhong Yuan, Branka VuceticAbstract:In this paper, we investigate a multiple-input-multiple-output (MIMO) scheme combining Transmit Antenna selection and receiver maximal-ratio combining (the TAS/MRC scheme). In this scheme, a single Transmit Antenna, which maximizes the total received signal power at the receiver, is selected for uncoded transmission. The closed-form outage probability of the system with Transmit Antenna selection is presented. The bit error rate (BER) of the TAS/MRC scheme is derived for binary phase-shift keying (BPSK) in flat Rayleigh fading channels. The BER analysis demonstrates that the TAS/MRC scheme can achieve a full diversity order at high signal-to-noise ratios (SNRs), as if all the Transmit Antennas were used. The average SNR gain of the TAS/MRC is quantified and compared with those of uncoded receiver MRC and space-time block codes (STBCs). The analytical results are verified by simulation. It is shown that the TAS/MRC scheme outperforms some more complex space-time codes of the same spectral efficiency. The cost of the improved performance is a low-rate feedback channel. We also show that channel estimation errors based on pilot symbols have no impact on the diversity order over quasi-static fading channels.
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performance of alamouti scheme with Transmit Antenna selection
Personal Indoor and Mobile Radio Communications, 2004Co-Authors: Zhuo Chen, Jinhong Yuan, Branka Vucetic, Zhendong ZhouAbstract:We investigate the error performance of the Alamouti scheme with Transmit Antenna selection. The exact bit error rate (BER) is derived for binary phase-shift keying (BPSK) in flat Rayleigh fading channels. The analysis reveals that this scheme achieves a full diversity order at high SNRs, as if all the Transmit Antennas were used. Simulation results are provided to substantiate the analysis. It is shown that compared with conventional space-time block codes (STBCs), this scheme incurs much less SNR loss inherent to the Transmit-diversity system. Therefore, the Alamouti scheme with Transmit Antenna selection provides a new general approach to the design of MIMO systems for high-data-rate downlink transmission with a high diversity order.
Zhuo Chen - One of the best experts on this subject based on the ideXlab platform.
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Transmit Antenna selection schemes with reduced feedback rate
IEEE Transactions on Wireless Communications, 2009Co-Authors: Zhuo Chen, Zhendong Zhou, Iain B. Collings, Branka VuceticAbstract:In this paper, we propose and analyze three new Transmit Antenna selection schemes with reduced feedback rate requirement compared with the conventional scheme. In scheme 1, Lt available Transmit Antennas are divided as equally as possible into two groups with consecutive Antennas. The best single Antenna within each group is selected. In scheme 2, only the best one among Lt Antennas is made known to the Transmitter, and the other one is selected at random. In Scheme 3, Lt Antennas are divided into multiple subsets each consisting of two adjacent Antennas, and the best subset is selected. Bit error rate (BER) expressions for the proposed schemes with Alamouti code are derived for independent flat Rayleigh fading channels. It is found that all the three schemes achieve a full diversity order. The relative merit of each proposed scheme is delineated based on the trade-off between the asymptotic performance loss and feedback reduction, both relative to the conventional scheme. We conclude that Schemes 1 and 3 are more favorable for practical applications, and the appropriate application scenarios are also identified. The proposed schemes enrich the choices for Antenna selection system design for various feedback channel bandwidths and different requirements for quality of service.
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analysis of Transmit Antenna selection maximal ratio combining in rayleigh fading channels
IEEE Transactions on Vehicular Technology, 2005Co-Authors: Zhuo Chen, Jinhong Yuan, Branka VuceticAbstract:In this paper, we investigate a multiple-input-multiple-output (MIMO) scheme combining Transmit Antenna selection and receiver maximal-ratio combining (the TAS/MRC scheme). In this scheme, a single Transmit Antenna, which maximizes the total received signal power at the receiver, is selected for uncoded transmission. The closed-form outage probability of the system with Transmit Antenna selection is presented. The bit error rate (BER) of the TAS/MRC scheme is derived for binary phase-shift keying (BPSK) in flat Rayleigh fading channels. The BER analysis demonstrates that the TAS/MRC scheme can achieve a full diversity order at high signal-to-noise ratios (SNRs), as if all the Transmit Antennas were used. The average SNR gain of the TAS/MRC is quantified and compared with those of uncoded receiver MRC and space-time block codes (STBCs). The analytical results are verified by simulation. It is shown that the TAS/MRC scheme outperforms some more complex space-time codes of the same spectral efficiency. The cost of the improved performance is a low-rate feedback channel. We also show that channel estimation errors based on pilot symbols have no impact on the diversity order over quasi-static fading channels.
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performance of alamouti scheme with Transmit Antenna selection
Personal Indoor and Mobile Radio Communications, 2004Co-Authors: Zhuo Chen, Jinhong Yuan, Branka Vucetic, Zhendong ZhouAbstract:We investigate the error performance of the Alamouti scheme with Transmit Antenna selection. The exact bit error rate (BER) is derived for binary phase-shift keying (BPSK) in flat Rayleigh fading channels. The analysis reveals that this scheme achieves a full diversity order at high SNRs, as if all the Transmit Antennas were used. Simulation results are provided to substantiate the analysis. It is shown that compared with conventional space-time block codes (STBCs), this scheme incurs much less SNR loss inherent to the Transmit-diversity system. Therefore, the Alamouti scheme with Transmit Antenna selection provides a new general approach to the design of MIMO systems for high-data-rate downlink transmission with a high diversity order.
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PIMRC - Performance of Alamouti scheme with Transmit Antenna selection
2004 IEEE 15th International Symposium on Personal Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754), 2004Co-Authors: Zhuo Chen, Jinhong Yuan, Branka Vucetic, Zhendong ZhouAbstract:We investigate the error performance of the Alamouti scheme with Transmit Antenna selection. The exact bit error rate (BER) is derived for binary phase-shift keying (BPSK) in flat Rayleigh fading channels. The analysis reveals that this scheme achieves a full diversity order at high SNRs, as if all the Transmit Antennas were used. Simulation results are provided to substantiate the analysis. It is shown that compared with conventional space-time block codes (STBCs), this scheme incurs much less SNR loss inherent to the Transmit-diversity system. Therefore, the Alamouti scheme with Transmit Antenna selection provides a new general approach to the design of MIMO systems for high-data-rate downlink transmission with a high diversity order.
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Performance of Alamouti scheme with Transmit Antenna selection
Electronics Letters, 2003Co-Authors: Zhuo Chen, Jinhong Yuan, Branka Vucetic, Zhendong ZhouAbstract:The bit error rate of the Alamouti scheme with Transmit Antenna selection in flat Rayleigh fading channels is presented. Performance analysis reveals that this scheme achieves a full diversity order, as if all the Transmit Antennas were used. This scheme has a fixed low decoding complexity and provides a systematic method to construct full-rate space-time block codes with a full diversity order.
Branka Vucetic - One of the best experts on this subject based on the ideXlab platform.
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Transmit Antenna selection schemes with reduced feedback rate
IEEE Transactions on Wireless Communications, 2009Co-Authors: Zhuo Chen, Zhendong Zhou, Iain B. Collings, Branka VuceticAbstract:In this paper, we propose and analyze three new Transmit Antenna selection schemes with reduced feedback rate requirement compared with the conventional scheme. In scheme 1, Lt available Transmit Antennas are divided as equally as possible into two groups with consecutive Antennas. The best single Antenna within each group is selected. In scheme 2, only the best one among Lt Antennas is made known to the Transmitter, and the other one is selected at random. In Scheme 3, Lt Antennas are divided into multiple subsets each consisting of two adjacent Antennas, and the best subset is selected. Bit error rate (BER) expressions for the proposed schemes with Alamouti code are derived for independent flat Rayleigh fading channels. It is found that all the three schemes achieve a full diversity order. The relative merit of each proposed scheme is delineated based on the trade-off between the asymptotic performance loss and feedback reduction, both relative to the conventional scheme. We conclude that Schemes 1 and 3 are more favorable for practical applications, and the appropriate application scenarios are also identified. The proposed schemes enrich the choices for Antenna selection system design for various feedback channel bandwidths and different requirements for quality of service.
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analysis of Transmit Antenna selection maximal ratio combining in rayleigh fading channels
IEEE Transactions on Vehicular Technology, 2005Co-Authors: Zhuo Chen, Jinhong Yuan, Branka VuceticAbstract:In this paper, we investigate a multiple-input-multiple-output (MIMO) scheme combining Transmit Antenna selection and receiver maximal-ratio combining (the TAS/MRC scheme). In this scheme, a single Transmit Antenna, which maximizes the total received signal power at the receiver, is selected for uncoded transmission. The closed-form outage probability of the system with Transmit Antenna selection is presented. The bit error rate (BER) of the TAS/MRC scheme is derived for binary phase-shift keying (BPSK) in flat Rayleigh fading channels. The BER analysis demonstrates that the TAS/MRC scheme can achieve a full diversity order at high signal-to-noise ratios (SNRs), as if all the Transmit Antennas were used. The average SNR gain of the TAS/MRC is quantified and compared with those of uncoded receiver MRC and space-time block codes (STBCs). The analytical results are verified by simulation. It is shown that the TAS/MRC scheme outperforms some more complex space-time codes of the same spectral efficiency. The cost of the improved performance is a low-rate feedback channel. We also show that channel estimation errors based on pilot symbols have no impact on the diversity order over quasi-static fading channels.
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performance of alamouti scheme with Transmit Antenna selection
Personal Indoor and Mobile Radio Communications, 2004Co-Authors: Zhuo Chen, Jinhong Yuan, Branka Vucetic, Zhendong ZhouAbstract:We investigate the error performance of the Alamouti scheme with Transmit Antenna selection. The exact bit error rate (BER) is derived for binary phase-shift keying (BPSK) in flat Rayleigh fading channels. The analysis reveals that this scheme achieves a full diversity order at high SNRs, as if all the Transmit Antennas were used. Simulation results are provided to substantiate the analysis. It is shown that compared with conventional space-time block codes (STBCs), this scheme incurs much less SNR loss inherent to the Transmit-diversity system. Therefore, the Alamouti scheme with Transmit Antenna selection provides a new general approach to the design of MIMO systems for high-data-rate downlink transmission with a high diversity order.
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PIMRC - Performance of Alamouti scheme with Transmit Antenna selection
2004 IEEE 15th International Symposium on Personal Indoor and Mobile Radio Communications (IEEE Cat. No.04TH8754), 2004Co-Authors: Zhuo Chen, Jinhong Yuan, Branka Vucetic, Zhendong ZhouAbstract:We investigate the error performance of the Alamouti scheme with Transmit Antenna selection. The exact bit error rate (BER) is derived for binary phase-shift keying (BPSK) in flat Rayleigh fading channels. The analysis reveals that this scheme achieves a full diversity order at high SNRs, as if all the Transmit Antennas were used. Simulation results are provided to substantiate the analysis. It is shown that compared with conventional space-time block codes (STBCs), this scheme incurs much less SNR loss inherent to the Transmit-diversity system. Therefore, the Alamouti scheme with Transmit Antenna selection provides a new general approach to the design of MIMO systems for high-data-rate downlink transmission with a high diversity order.
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Performance of Alamouti scheme with Transmit Antenna selection
Electronics Letters, 2003Co-Authors: Zhuo Chen, Jinhong Yuan, Branka Vucetic, Zhendong ZhouAbstract:The bit error rate of the Alamouti scheme with Transmit Antenna selection in flat Rayleigh fading channels is presented. Performance analysis reveals that this scheme achieves a full diversity order, as if all the Transmit Antennas were used. This scheme has a fixed low decoding complexity and provides a systematic method to construct full-rate space-time block codes with a full diversity order.
Phee Lep Yeoh - One of the best experts on this subject based on the ideXlab platform.
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Transmit Antenna selection in cognitive mimo relaying with multiple primary transceivers
IEEE Transactions on Vehicular Technology, 2016Co-Authors: Phee Lep Yeoh, Maged Elkashlan, Trung Q Duong, Kyeong Jin Kim, George K KaragiannidisAbstract:The authors consider Transmit Antenna selection (TAS) in cognitive multiple-input–multiple-output (MIMO) relay networks as an interference-aware design for secondary users (SUs) to ensure power and interference constraints of multiple primary users (PUs). In doing so, the authors derive new exact and asymptotic expressions for the outage probability of TAS with maximal ratio combining (TAS/MRC) and with selection combining (TAS/SC) over Rayleigh fading. The proposed analysis and simulations highlight that TAS/MRC and TAS/SC with decode-and-forward relaying achieve the same diversity order in cognitive MIMO networks, which scales with the minimum number of Antennas at the SUs. Furthermore, the authors accurately characterize the outage gap between TAS/MRC and TAS/SC relaying as a concise ratio of their array gains.
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mimo wiretap channels secure transmission using Transmit Antenna selection and receive generalized selection combining
IEEE Communications Letters, 2013Co-Authors: Nan Yang, Maged Elkashlan, Phee Lep Yeoh, Robert Schober, Jinhong YuanAbstract:We propose and analyze Transmit Antenna selection with receive generalized selection combining (TAS/GSC) for physical layer security enhancement in multiple-input multiple-output wiretap channels. In this protocol, a single Antenna out of NA Antennas is selected at the Transmitter and LB Antennas out of NB Antennas are combined at the legitimate receiver. We characterize the physical layer secrecy of TAS/GSC via our new closed-form expressions for the exact and the asymptotic secrecy outage probability. We demonstrate that the maximum secrecy outage diversity gain of NA NB is achieved.
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unified analysis of Transmit Antenna selection in mimo multirelay networks
IEEE Transactions on Vehicular Technology, 2013Co-Authors: Phee Lep Yeoh, Maged Elkashlan, Nan Yang, Daniel Benevides Da Costa, Trung Q DuongAbstract:We present a unified asymptotic framework for Transmit Antenna selection in multiple-input multiple-output (MIMO) multirelay networks with Rician, Nakagami-m, Weibull, and generalized-K fading channels. We apply this framework to derive new closed-form expressions for the outage probability and symbol error rate (SER) of amplify-and-forward (AF) relaying in MIMO multirelay networks with two distinct protocols: 1) Transmit Antenna selection with receiver maximal-ratio combining (TAS/MRC) and 2) Transmit Antenna selection with receiver selection combining (TAS/SC). Based on these expressions, the diversity order and the array gain with M-ary phase-shift keying and M-ary quadrature-amplitude modulation are derived. We corroborate that the diversity order only depends on the fading distribution and the number of diversity branches, whereas the array gain depends on the fading distribution, the modulation format, the number of diversity branches, and the average per-hop signal-to-noise ratios (SNRs). We highlight that the diversity order of TAS/MRC is the same as TAS/SC, regardless of the underlying fading distribution. As such, we explicitly characterize the SNR gap between TAS/MRC and TAS/SC as the ratio of their respective array gains. An interesting observation is reached that for equal per-hop SNRs, the SNR gap between the two protocols is independent of the number of relays.
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unified analysis of Transmit Antenna selection in mimo multirelay networks
IEEE Transactions on Vehicular Technology, 2013Co-Authors: Phee Lep Yeoh, Maged Elkashlan, Nan Yang, Daniel Benevides Da Costa, Trung Q DuongAbstract:We present a unified asymptotic framework for Transmit Antenna selection in multiple-input multiple-output (MIMO) multirelay networks with Rician, Nakagami-m, Weibull, and generalized-K fading channels. We apply this framework to derive new closed-form expressions for the outage probability and symbol error rate (SER) of amplify-and-forward (AF) relaying in MIMO multirelay networks with two distinct protocols: 1) Transmit Antenna selection with receiver maximal-ratio combining (TAS/MRC) and 2) Transmit Antenna selection with receiver selection combining (TAS/SC). Based on these expressions, the diversity order and the array gain with M-ary phase-shift keying and M-ary quadrature-amplitude modulation are derived. We corroborate that the diversity order only depends on the fading distribution and the number of diversity branches, whereas the array gain depends on the fading distribution, the modulation format, the number of diversity branches, and the average per-hop signal-to-noise ratios (SNRs). We highlight that the diversity order of TAS/MRC is the same as TAS/SC, regardless of the underlying fading distribution. As such, we explicitly characterize the SNR gap between TAS/MRC and TAS/SC as the ratio of their respective array gains. An interesting observation is reached that for equal per-hop SNRs, the SNR gap between the two protocols is independent of the number of relays.
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unified analysis of Transmit Antenna selection in mimo multi relay networks
IEEE Transactions on Vehicular Technology, 2013Co-Authors: Phee Lep Yeoh, Maged Elkashlan, Nan Yang, Daniel Benevides Da Costa, Quang Trung DuongAbstract:We present a unified asymptotic framework for Transmit Antenna selection in multiple-input multiple-output (MIMO) multi-relay networks with Rician, Nakagami-m, Weibull, and Generalized-K fading channels. We apply this framework to derive new closed-form expressions for the outage probability and symbol error rate (SER) of amplify-andforward relaying in MIMO multi-relay networks with two distinct protocols: 1) Transmit Antenna selection with receiver maximalratio combining (TAS/MRC), and 2) Transmit Antenna selection with receiver selection combining (TAS/SC). Based on these expressions, the diversity order and the array gain with M-ary phase shift keying and M-ary quadrature amplitude modulation are derived.We corroborate that the diversity order only depends on the fading distribution and the number of diversity branches, whereas the array gain depends on the fading distribution, the modulation format, the number of diversity branches, and the average per-hop signal-to-noise ratios (SNRs). We highlight that the diversity order of TAS/MRC is the same as TAS/SC, regardless of the underlying fading distribution. As such, we explicitly characterize the SNR gap between TAS/MRC and TAS/SC as the ratio of their respective array gains. An interesting observation is reached that for equal per-hop SNRs, the SNR gap between the two protocols is independent of the number of relays.
B L Hughes - One of the best experts on this subject based on the ideXlab platform.
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on the diversity order of spatial multiplexing systems with Transmit Antenna selection a geometrical approach
IEEE Transactions on Information Theory, 2006Co-Authors: Hongyuan Zhang, Huaiyu Dai, Quan Zhou, B L HughesAbstract:In recent years, the remarkable ability of multiple-input-multiple-output (MIMO) wireless communication systems to provide spatial diversity or multiplexing gains has been clearly demonstrated. For MIMO diversity schemes, it is well known that Antenna selection methods that optimize the postprocessing signal-to-noise ratio (SNR) can preserve the diversity order of the original full-size MIMO system. On the other hand, the diversity order achieved by Antenna selection in spatial multiplexing systems, especially those exploiting practical coding and decoding schemes, has not thus far been rigorously analyzed. In this paper, a geometrical framework is proposed to theoretically analyze the diversity order achieved by Transmit Antenna selection for separately encoded spatial multiplexing systems with linear and decision-feedback receivers. When two Antennas are selected from the Transmitter, the exact achievable diversity order is rigorously derived, which previously only appears as conjectures based on numerical results in the literature. If more than two Antennas are selected, we give lower and upper bounds on the achievable diversity order. Furthermore, the same geometrical approach is used to evaluate the diversity-multiplexing tradeoff in spatial multiplexing systems with Transmit Antenna selection
