標題: The Fading Number of a Multiple-Access Rician Fading Channel
作者: Lin, Gu-Rong
Moser, Stefan M.
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: Channel capacity;escaping to infinity;fading number;high signal-to-noise ratio (SNR);multiple-access channel (MAC);multiple-input single-output (MISO);multiple users;noncoherent detection;Rician fading;sum-rate capacity
公開日期: 1-八月-2011
摘要: The sum-rate capacity of a noncoherent memoryless multiple-access Rician fading channel is investigated under three different categories of power constraints: individual per user peak-power constraints, individual per user average-power constraints, or a global power-sharing average-power constraint. Upper and lower bounds on the sum-rate capacity are derived, and it is shown that at high signal-to-noise ratio the sum-rate capacity only grows double-logarithmically in the available power. The asymptotic behavior of capacity is then analyzed in detail and the exact asymptotic expansion is derived including its second term, the so-called fading number. It is shown that the fading number is identical to the fading number of the single-user Rician fading channel that is obtained when only the user seeing the best channel is transmitting and all other users are switched off at all times. This pessimistic result holds independently of the type of power constraint that is imposed.
URI: http://dx.doi.org/10.1109/TIT.2011.2158470
http://hdl.handle.net/11536/14960
ISSN: 0018-9448
DOI: 10.1109/TIT.2011.2158470
期刊: IEEE TRANSACTIONS ON INFORMATION THEORY
Volume: 57
Issue: 8
起始頁: 4983
結束頁: 4991
顯示於類別:期刊論文


文件中的檔案:

  1. 000295738500009.pdf