The Experts below are selected from a list of 4637889 Experts worldwide ranked by ideXlab platform
Chi-chao Chao - One of the best experts on this subject based on the ideXlab platform.
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signal to interference plus noise Ratio analysis for direct sequence ultra wideband systems in generalized saleh valenzuela channels
IEEE Journal of Selected Topics in Signal Processing, 2007Co-Authors: Cheng-chia Lee, Chunghsuan Wang, Chi-chao ChaoAbstract:In this paper, exact Signal-to-Interference-Plus-Noise Ratio (SINR) analysis of direct-sequence ultra-wideband (UWB) systems with Rake receiving in the presence of inter-symbol interference and multiple-access interference over a generalized Saleh-Valenzuela (GSV) channel with a generic pulse shaping function is provided. The SINR expression, for synchronized multiple-access, is first obtained without assuming random spreading. The GSV channel structure under consideRation is a generalization of the Saleh-Valenzuela channel structure with generalized path-gain and path-arrival models, examples of which can include all the IEEE 802.15.3a UWB channel models and some of the IEEE 802.15.4a models. Then, by the novel treatment of renewal processes, the exact average SINR over the GSV channel statistics is obtained. Our analytical results well match computer simulations and can readily be applied to evaluate and improve the performance of UWB systems over realistic channel and interference models.
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WCNC - Signal-to-Interference-Plus-Noise Ratio Analysis for Direct-Sequence Ultra-Wideband Systems
2007 IEEE Wireless Communications and Networking Conference, 2007Co-Authors: Cheng-chia Lee, Chi-chao ChaoAbstract:In this paper, exact Signal-to-Interference-Plus-Noise Ratio (SINR) analysis of direct-sequence ultra-wideband (UWB) systems with rake receiving in the presence of inter-symbol interference and multiple-access interference over realistic UWB channel models is conducted. The SINR expression, considering the code correlation functions and a generic rake receiver with variable number of combining fingers, is first derived. The statistics of the UWB channel models, defined by the IEEE 802.15.3a Task Group, are then taken into account. Because of the high multipath resolution offered by UWB signals, the UWB channel exhibits a unique path-arriving phenomenon, which can, however, complicate the analysis. Nevertheless, by exploiting the property of Poisson path arrivals, the exact average SINR is obtained in this paper. The analytical results well match computer simulations and can readily be applied to the performance evaluation or system optimization over realistic channel and interference models.
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Signal-to-Interference-Plus-Noise Ratio Analysis for Direct-Sequence Ultra-Wideband Systems in Generalized Saleh–Valenzuela Channels
IEEE Journal of Selected Topics in Signal Processing, 2007Co-Authors: Cheng-chia Lee, Chunghsuan Wang, Chi-chao ChaoAbstract:In this paper, exact Signal-to-Interference-Plus-Noise Ratio (SINR) analysis of direct-sequence ultra-wideband (UWB) systems with Rake receiving in the presence of inter-symbol interference and multiple-access interference over a generalized Saleh-Valenzuela (GSV) channel with a generic pulse shaping function is provided. The SINR expression, for synchronized multiple-access, is first obtained without assuming random spreading. The GSV channel structure under consideRation is a generalization of the Saleh-Valenzuela channel structure with generalized path-gain and path-arrival models, examples of which can include all the IEEE 802.15.3a UWB channel models and some of the IEEE 802.15.4a models. Then, by the novel treatment of renewal processes, the exact average SINR over the GSV channel statistics is obtained. Our analytical results well match computer simulations and can readily be applied to evaluate and improve the performance of UWB systems over realistic channel and interference models.
Cheng-chia Lee - One of the best experts on this subject based on the ideXlab platform.
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signal to interference plus noise Ratio analysis for direct sequence ultra wideband systems in generalized saleh valenzuela channels
IEEE Journal of Selected Topics in Signal Processing, 2007Co-Authors: Cheng-chia Lee, Chunghsuan Wang, Chi-chao ChaoAbstract:In this paper, exact Signal-to-Interference-Plus-Noise Ratio (SINR) analysis of direct-sequence ultra-wideband (UWB) systems with Rake receiving in the presence of inter-symbol interference and multiple-access interference over a generalized Saleh-Valenzuela (GSV) channel with a generic pulse shaping function is provided. The SINR expression, for synchronized multiple-access, is first obtained without assuming random spreading. The GSV channel structure under consideRation is a generalization of the Saleh-Valenzuela channel structure with generalized path-gain and path-arrival models, examples of which can include all the IEEE 802.15.3a UWB channel models and some of the IEEE 802.15.4a models. Then, by the novel treatment of renewal processes, the exact average SINR over the GSV channel statistics is obtained. Our analytical results well match computer simulations and can readily be applied to evaluate and improve the performance of UWB systems over realistic channel and interference models.
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WCNC - Signal-to-Interference-Plus-Noise Ratio Analysis for Direct-Sequence Ultra-Wideband Systems
2007 IEEE Wireless Communications and Networking Conference, 2007Co-Authors: Cheng-chia Lee, Chi-chao ChaoAbstract:In this paper, exact Signal-to-Interference-Plus-Noise Ratio (SINR) analysis of direct-sequence ultra-wideband (UWB) systems with rake receiving in the presence of inter-symbol interference and multiple-access interference over realistic UWB channel models is conducted. The SINR expression, considering the code correlation functions and a generic rake receiver with variable number of combining fingers, is first derived. The statistics of the UWB channel models, defined by the IEEE 802.15.3a Task Group, are then taken into account. Because of the high multipath resolution offered by UWB signals, the UWB channel exhibits a unique path-arriving phenomenon, which can, however, complicate the analysis. Nevertheless, by exploiting the property of Poisson path arrivals, the exact average SINR is obtained in this paper. The analytical results well match computer simulations and can readily be applied to the performance evaluation or system optimization over realistic channel and interference models.
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Signal-to-Interference-Plus-Noise Ratio Analysis for Direct-Sequence Ultra-Wideband Systems in Generalized Saleh–Valenzuela Channels
IEEE Journal of Selected Topics in Signal Processing, 2007Co-Authors: Cheng-chia Lee, Chunghsuan Wang, Chi-chao ChaoAbstract:In this paper, exact Signal-to-Interference-Plus-Noise Ratio (SINR) analysis of direct-sequence ultra-wideband (UWB) systems with Rake receiving in the presence of inter-symbol interference and multiple-access interference over a generalized Saleh-Valenzuela (GSV) channel with a generic pulse shaping function is provided. The SINR expression, for synchronized multiple-access, is first obtained without assuming random spreading. The GSV channel structure under consideRation is a generalization of the Saleh-Valenzuela channel structure with generalized path-gain and path-arrival models, examples of which can include all the IEEE 802.15.3a UWB channel models and some of the IEEE 802.15.4a models. Then, by the novel treatment of renewal processes, the exact average SINR over the GSV channel statistics is obtained. Our analytical results well match computer simulations and can readily be applied to evaluate and improve the performance of UWB systems over realistic channel and interference models.
Gert Frølund Pedersen - One of the best experts on this subject based on the ideXlab platform.
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Performance comparison of weighted sum-minimum mean square error and virtual signal-to-interference plus noise Ratio algorithms in simulated and measured channels
Electronics Letters, 2014Co-Authors: Maryam Rahimi, Jesper Ødum Nielsen, Troels Pedersen, Gert Frølund PedersenAbstract:A comparison in data achievement between two well-known algorithms with simulated and real measured data is presented. The algorithms maximise the data rate in cooperative base stations (BS) multiple-input–single-output scenario. Weighted sum-minimum mean square error algorithm could be used in multiple-input–multiple-output scenarios, but it has lower performance than virtual signal-to-interference plus noise Ratio algorithm in theory and practice. A real measurement environment consisting of two BS and two users have been studied to evaluate the simulation results.
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On the Achieved Sum-Rate for Different Handset Grips
International Journal on Communications Antenna and Propagation (IRECAP), 2014Co-Authors: Maryam Rahimi, Jesper Ødum Nielsen, Troels Pedersen, Gert Frølund PedersenAbstract:This letter presents the results of analysis of data from a measurement campaign, carried out in Aalborg city, Denmark. The Virtual Signal to Interference plus Noise Ratio (VSINR) algorithm was employed in order to discover the achieved sum rate in cellular network systems. The results focus on the effect different handset (HS) grips have on the data rate achievement.
Chunghsuan Wang - One of the best experts on this subject based on the ideXlab platform.
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signal to interference plus noise Ratio analysis for direct sequence ultra wideband systems in generalized saleh valenzuela channels
IEEE Journal of Selected Topics in Signal Processing, 2007Co-Authors: Cheng-chia Lee, Chunghsuan Wang, Chi-chao ChaoAbstract:In this paper, exact Signal-to-Interference-Plus-Noise Ratio (SINR) analysis of direct-sequence ultra-wideband (UWB) systems with Rake receiving in the presence of inter-symbol interference and multiple-access interference over a generalized Saleh-Valenzuela (GSV) channel with a generic pulse shaping function is provided. The SINR expression, for synchronized multiple-access, is first obtained without assuming random spreading. The GSV channel structure under consideRation is a generalization of the Saleh-Valenzuela channel structure with generalized path-gain and path-arrival models, examples of which can include all the IEEE 802.15.3a UWB channel models and some of the IEEE 802.15.4a models. Then, by the novel treatment of renewal processes, the exact average SINR over the GSV channel statistics is obtained. Our analytical results well match computer simulations and can readily be applied to evaluate and improve the performance of UWB systems over realistic channel and interference models.
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Signal-to-Interference-Plus-Noise Ratio Analysis for Direct-Sequence Ultra-Wideband Systems in Generalized Saleh–Valenzuela Channels
IEEE Journal of Selected Topics in Signal Processing, 2007Co-Authors: Cheng-chia Lee, Chunghsuan Wang, Chi-chao ChaoAbstract:In this paper, exact Signal-to-Interference-Plus-Noise Ratio (SINR) analysis of direct-sequence ultra-wideband (UWB) systems with Rake receiving in the presence of inter-symbol interference and multiple-access interference over a generalized Saleh-Valenzuela (GSV) channel with a generic pulse shaping function is provided. The SINR expression, for synchronized multiple-access, is first obtained without assuming random spreading. The GSV channel structure under consideRation is a generalization of the Saleh-Valenzuela channel structure with generalized path-gain and path-arrival models, examples of which can include all the IEEE 802.15.3a UWB channel models and some of the IEEE 802.15.4a models. Then, by the novel treatment of renewal processes, the exact average SINR over the GSV channel statistics is obtained. Our analytical results well match computer simulations and can readily be applied to evaluate and improve the performance of UWB systems over realistic channel and interference models.
Thomas Eriksson - One of the best experts on this subject based on the ideXlab platform.
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Millimeter-Wave Over-the-Air Signal-to-Interference-Plus-Noise-Ratio Measurements Using a MIMO Testbed
arXiv: Signal Processing, 2018Co-Authors: Koen Buisman, David Cheadle, Tian Hong Loh, David A. Humphreys, Thomas ErikssonAbstract:In this paper, over-the-air experiments with external and internal interferences were performed using Chalmers millimeter-wave multiple-input-multiple-output testbed MATE. The resulting SINR for both interference experiments are compared and discussed.
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Millimeter-Wave Over-the-Air Signal-to-Interference-Plus-Noise-Ratio Measurements Using a MIMO Testbed
2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018Co-Authors: Koen Buisman, David Cheadle, Tian Hong Loh, David A. Humphreys, Thomas ErikssonAbstract:In this paper, over-the-air experiments with external and internal interferences were performed using Chalmers' millimeter-wave multiple-input-multiple-output testbed MATE. The resulting Signal-to-Interference-Plus-Noise-Ratio for both interference experiments are compared and discussed.
