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用於非同調通訊系統之碼字交錯放置傳送和接收方法
Thesis

用於非同調通訊系統之碼字交錯放置傳送和接收方法

趙英辰
Masters, 國立清華大學, 電機工程學系
2008

Abstract

非同調系統 碼字交錯放置 非同調區塊碼 同調區間 noncoherent system codeword-interleaved noncoherent block code coherence length
Noncoherent detection is an attractive technique in this year because it does not require carrier phase tracking. This thesis contains a systematic investigation of practical coding strategies for noncoherent communication over fading channel, guided by explicit comparisons with EXIT chart analysis. Our system is designed into a serial concatenation of a standard binary outer channel code with an inner modulation code amenable to noncoherent detection for noncoherent communication system. Based on the inner modulation codes, we porpose a novel transmission and reeceiving scheme called "Codeword-Interleaved Transmission/Receiving Scheme" to futher improve the noncoherent system. From the simulation result, we can see that the performance improves substantially by using our proposed scheme.

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