The Experts below are selected from a list of 9 Experts worldwide ranked by ideXlab platform

F Ramirezmireles - One of the best experts on this subject based on the ideXlab platform.

  • performance of ultrawideband ssma using time hopping and m ary ppm
    IEEE Journal on Selected Areas in Communications, 2001
    Co-Authors: F Ramirezmireles
    Abstract:

    Wireless spread spectrum multiple access (SSMA) using time hopping and block waveform encoded (M-ary) pulse position modulated (PPM) signals is analyzed. For different M-ary PPM signal designs, the multiple-access performance in free-space propagation renditions is analyzed in terms of the number of users supported by the system for a given Bit error Rate, signal-to-noise ratio, Bit Transmission Rate, and number of signals in the M-ary set. The processing gain and number of simultaneous users are described in terms of system parameters. Tradeoffs between performance and receiver complexity are discussed. Upper bounds on both the maximum number of users and the total combined Bit Transmission Rate are investigated. This analysis is applied to ultrawideband impulse radio modulation. In this modulation, the communications waveforms are practically realized using subnanosecond impulse technology. A numerical example is given that shows that impulse radio modulation is theoretically able to provide multiple-access communications with a combined Transmission capacity of hundreds of megaBits per second at Bit error Rates in the range 10/sup -4/ to 10/sup -7/ using receivers of modeRate complexity.

Ren Hai-peng - One of the best experts on this subject based on the ideXlab platform.

  • Design and Performance Analysis of a Chaotic Pseudo Orthogonal Carriers Multi-Access Communication System
    2021
    Co-Authors: Bai Chao, Yao Jun-liang, Sun Yu-zhe, Ren Hai-peng
    Abstract:

    A Chaotic Pseudo Orthogonal Carriers Multi-Access (CPOCMA) communication based on Chaotic Pseudo Orthogonal Shape-forming Filter (CPOSF) bank, Chaotic Pseudo Orthogonal Matched Filter (CPOMF) bank and Chaotic Pseudo Orthogonal Correlation Filter (CPOCF) bank is proposed in this work. At the transmitter, the multiple CPOSFs are used to geneRate pseudo orthogonal signals. It provides a good trade-off between spectrum efficiency and high Bit Transmission Rate. At the receiver, the CPOMF bank and CPOCF bank are used to maximize the Signal-to-Noise Ratio (SNR) and extract the received information from each sub-channel, respectively. The received signal is demodulated by averaging the sampled sequence from the matched filter bank output and sorting the sampling sequence from the CPOCF bank output to recover the transmitted information Bits. The proposed CPOCMA communication system not only offers multiuser access with high reliability and high data Transmission Rate, but also achieves higher spectrum efficiency. Analytical Bit Error Rate (BER) expression is derived. The proposed communication system performance has been evaluated in Additive White Gaussian Noise (AWGN) channel and wireless channel by both numerical simulations and experiments based on a Wireless open-Access Research Platform (WARP), the results show the effectiveness and the superiority of the proposed method

Bai Chao - One of the best experts on this subject based on the ideXlab platform.

  • Design and Performance Analysis of a Chaotic Pseudo Orthogonal Carriers Multi-Access Communication System
    2021
    Co-Authors: Bai Chao, Yao Jun-liang, Sun Yu-zhe, Ren Hai-peng
    Abstract:

    A Chaotic Pseudo Orthogonal Carriers Multi-Access (CPOCMA) communication based on Chaotic Pseudo Orthogonal Shape-forming Filter (CPOSF) bank, Chaotic Pseudo Orthogonal Matched Filter (CPOMF) bank and Chaotic Pseudo Orthogonal Correlation Filter (CPOCF) bank is proposed in this work. At the transmitter, the multiple CPOSFs are used to geneRate pseudo orthogonal signals. It provides a good trade-off between spectrum efficiency and high Bit Transmission Rate. At the receiver, the CPOMF bank and CPOCF bank are used to maximize the Signal-to-Noise Ratio (SNR) and extract the received information from each sub-channel, respectively. The received signal is demodulated by averaging the sampled sequence from the matched filter bank output and sorting the sampling sequence from the CPOCF bank output to recover the transmitted information Bits. The proposed CPOCMA communication system not only offers multiuser access with high reliability and high data Transmission Rate, but also achieves higher spectrum efficiency. Analytical Bit Error Rate (BER) expression is derived. The proposed communication system performance has been evaluated in Additive White Gaussian Noise (AWGN) channel and wireless channel by both numerical simulations and experiments based on a Wireless open-Access Research Platform (WARP), the results show the effectiveness and the superiority of the proposed method

Yao Jun-liang - One of the best experts on this subject based on the ideXlab platform.

  • Design and Performance Analysis of a Chaotic Pseudo Orthogonal Carriers Multi-Access Communication System
    2021
    Co-Authors: Bai Chao, Yao Jun-liang, Sun Yu-zhe, Ren Hai-peng
    Abstract:

    A Chaotic Pseudo Orthogonal Carriers Multi-Access (CPOCMA) communication based on Chaotic Pseudo Orthogonal Shape-forming Filter (CPOSF) bank, Chaotic Pseudo Orthogonal Matched Filter (CPOMF) bank and Chaotic Pseudo Orthogonal Correlation Filter (CPOCF) bank is proposed in this work. At the transmitter, the multiple CPOSFs are used to geneRate pseudo orthogonal signals. It provides a good trade-off between spectrum efficiency and high Bit Transmission Rate. At the receiver, the CPOMF bank and CPOCF bank are used to maximize the Signal-to-Noise Ratio (SNR) and extract the received information from each sub-channel, respectively. The received signal is demodulated by averaging the sampled sequence from the matched filter bank output and sorting the sampling sequence from the CPOCF bank output to recover the transmitted information Bits. The proposed CPOCMA communication system not only offers multiuser access with high reliability and high data Transmission Rate, but also achieves higher spectrum efficiency. Analytical Bit Error Rate (BER) expression is derived. The proposed communication system performance has been evaluated in Additive White Gaussian Noise (AWGN) channel and wireless channel by both numerical simulations and experiments based on a Wireless open-Access Research Platform (WARP), the results show the effectiveness and the superiority of the proposed method

Sun Yu-zhe - One of the best experts on this subject based on the ideXlab platform.

  • Design and Performance Analysis of a Chaotic Pseudo Orthogonal Carriers Multi-Access Communication System
    2021
    Co-Authors: Bai Chao, Yao Jun-liang, Sun Yu-zhe, Ren Hai-peng
    Abstract:

    A Chaotic Pseudo Orthogonal Carriers Multi-Access (CPOCMA) communication based on Chaotic Pseudo Orthogonal Shape-forming Filter (CPOSF) bank, Chaotic Pseudo Orthogonal Matched Filter (CPOMF) bank and Chaotic Pseudo Orthogonal Correlation Filter (CPOCF) bank is proposed in this work. At the transmitter, the multiple CPOSFs are used to geneRate pseudo orthogonal signals. It provides a good trade-off between spectrum efficiency and high Bit Transmission Rate. At the receiver, the CPOMF bank and CPOCF bank are used to maximize the Signal-to-Noise Ratio (SNR) and extract the received information from each sub-channel, respectively. The received signal is demodulated by averaging the sampled sequence from the matched filter bank output and sorting the sampling sequence from the CPOCF bank output to recover the transmitted information Bits. The proposed CPOCMA communication system not only offers multiuser access with high reliability and high data Transmission Rate, but also achieves higher spectrum efficiency. Analytical Bit Error Rate (BER) expression is derived. The proposed communication system performance has been evaluated in Additive White Gaussian Noise (AWGN) channel and wireless channel by both numerical simulations and experiments based on a Wireless open-Access Research Platform (WARP), the results show the effectiveness and the superiority of the proposed method