电子学报
電子學報
전자학보
ACTA ELECTRONICA SINICA
2014年
10期
1944-1950
,共7页
两跳中继%联合多径阴影衰落%混合Gamma%广义K分布%性能分析
兩跳中繼%聯閤多徑陰影衰落%混閤Gamma%廣義K分佈%性能分析
량도중계%연합다경음영쇠락%혼합Gamma%엄의K분포%성능분석
dual-hop relaying%composite multipath-lognormal fading%mixture Gamma%generalized-K%performance analysis
基于混合Gamma信道模型研究了两跳中继系统在联合多径阴影衰落环境下的性能。推导了两跳中继系统端到端信噪比的累积分布函数和矩生函数的精确闭式解，并基于这些闭式解分析了两跳中继系统的误码率、中断率和分集增益等性能。与广义K衰落模型下的性能进行了比较，运用混合Gamma衰落模型可获得简单精确的结果。最后数值和仿真分析验证了理论研究的正确性。
基于混閤Gamma信道模型研究瞭兩跳中繼繫統在聯閤多徑陰影衰落環境下的性能。推導瞭兩跳中繼繫統耑到耑信譟比的纍積分佈函數和矩生函數的精確閉式解，併基于這些閉式解分析瞭兩跳中繼繫統的誤碼率、中斷率和分集增益等性能。與廣義K衰落模型下的性能進行瞭比較，運用混閤Gamma衰落模型可穫得簡單精確的結果。最後數值和倣真分析驗證瞭理論研究的正確性。
기우혼합Gamma신도모형연구료량도중계계통재연합다경음영쇠락배경하적성능。추도료량도중계계통단도단신조비적루적분포함수화구생함수적정학폐식해，병기우저사폐식해분석료량도중계계통적오마솔、중단솔화분집증익등성능。여엄의K쇠락모형하적성능진행료비교，운용혼합Gamma쇠락모형가획득간단정학적결과。최후수치화방진분석험증료이론연구적정학성。
The end-to-end performance of a dual-hop amplify-and-forward relaying system is investigated over composite multipath-lognormal fading channels by using Mixture Gamma (MG )channel model .Novel exact closed-form expressions for the cu-mulative distribution function and the moment-generation function of the end-to-end signal-to-noise ratio are derived .Moreover ,the average symbol error rate ,outage probability and the diversity order are found based on the above new expressions ,respectively . These expressions are more simple and accuracy than the ones obtained by using Generalized-K(KG)channel model .Finally ,numer-ical and simulation results are shown to verify the accuracy of the analytical results .
