tailieunhanh - Báo cáo hóa học: " On the Channel Capacity of Multiantenna Systems with Nakagami Fading"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: On the Channel Capacity of Multiantenna Systems with Nakagami Fading | Hindawi Publishing Corporation EURASIP Journal on Applied Signal Processing Volume 2006 Article ID 39436 Pages 1-11 DOI ASP 2006 39436 On the Channel Capacity of Multiantenna Systems with Nakagami Fading Feng Zheng1 and Thomas Kaiser2 1 Department of Electronic and Computer Engineering University of Limerick Limerick Ireland 2 Department of Communication Systems Faculty of Electrical Engineering University Duisburg-Essen 47048 Duisburg Germany Received 12 September 2005 Revised 13 January 2006 Accepted 9 March 2006 Recommended for Publication by Christoph Mecklenbrauker We discuss the channel capacity of multiantenna systems with the Nakagami fading channel. Analytic expressions for the ergodic channel capacity or its lower bound are given for SISO SIMO and MISO cases. Formulae for the outage probability of the capacity are presented. It is shown that the channel capacity could be increased logarithmically with the number of receive antennas for SIMO case while employing 3-5 transmit antennas irrespective of all other parameters considered herein can approach the best advantage of the multiple transmit antenna systems as far as channel capacity is concerned for MISO case. We have shown that for a given SNR the outage probability decreases considerably with the number of receive antennas for SIMO case while for MISO case the upper bound of the outage probability decreases with the number of transmit antennas when the transmission rate is lower than some value but increases instead when the transmission rate is higher than another value. A critical transmission rate is identified. Copyright 2006 F. Zheng and T. Kaiser. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION Since Foschini and Gans 1 and Telatar 2 established that the capacity of a Rayleigh distributed flat fading channel .

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