中国物理B ›› 2008, Vol. 17 ›› Issue (12): 4451-4457.doi: 10.1088/1674-1056/17/12/020
汪辉松, 曾贵华
Wang Hui-Song (汪辉松), Zeng Gui-Hua (曾贵华)
摘要: In this paper, the effect of imperfect channel state information at the receiver, which is caused by noise and other interference, on the multi-access channel capacity is analysed through a statistical-mechanical approach. Replica analyses focus on analytically studying how the minimum mean square error (MMSE) channel estimation error appears in a multiuser channel capacity formula. And the relevant mathematical expressions are derived. At the same time, numerical simulation results are demonstrated to validate the Replica analyses. The simulation results show how the system parameters, such as channel estimation error, system load and signal-to-noise ratio, affect the channel capacity.
中图分类号: (Telecommunications: signal transmission and processing; communication satellites)