IS-95反向信道在Nakagami(m)多径衰落信道下的性能分析
PERFORMANCE ANALYSIS OF IS-95 REVERSE CHANNEL OVER NAKAGAMI(m) MULTIPATH FADING CHANNEL
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摘要: IS-95是北美制定的基于CDMA技术的无线空中接口标准,本文给出了IS-95反向信道调制和解调过程的数学模型。一般认为Nakagami(m)分布较好地描述了多径衰落信道,本文分析了IS-95反向信道在Nakagami(m)衰落信道下的误码率,结果可以用来综合分析系统和信道的不同参数对系统性能的影响。Abstract: This article deals with the reverse channel of IS-95 based cellular CDMA system. The M-ary OQPSK(Offset Quadrature Phase Shift Keying) modulation process and the RAKE receiver are described. Bit error rate over Nakagami(m) multi-path fading channel is derived and the result is used to investigate the influence of different parameters to the overall system performance.
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