无线通信中编码的香农极限

Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI:10.1145/3291842.3291845

Maoke Miao, Chao Gao, H. Liang, Xiaofeng Li

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引用次数: 0

摘要

利用香农定理推导出连续AWGN信道的极限信噪比为-1.6dB。本文研究了BPSK调制中离散二进制输入连续输出的双awgn和瑞利信道的信道容量和极限信噪比的非迭代级数表示方法。在cesα - ro级数求和规则的帮助下，得到了极限信噪比。我们发现，在R→0和P→0条件下，具有(信道状态信息)CSI的BI-AWGN和瑞利信道的极限信噪比是相同的。对于无CSI的瑞利信道，我们用R→0展开式近似求解，得到的容量表达式比之前导出的两个表达式更简单。

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Shannon Limit of Coding in Wireless Communication

A limit SNR(signal noise ratio) -1.6dB has been derived in continuous AWGN channel by shannon theorem. In this paper we study the channel capacity and limit SNR by series representation unlike iteration method for BI-AWGN(discrete binary input, continuous output) and rayleigh channel in BPSK modulation. The limit SNR is obtained under the help of Cesαro series summation rule. We figure out that BI-AWGN and rayleigh channel with (channel state information)CSI behave the same in limit SNR in terms of R → 0 and P → 0. For rayleigh channel without CSI, We solve it approximately by series expanded in R → 0 and an expression of capacity behaves more simple than the two others derived before.

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Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering

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