户外无线光通信中湍流信道下的分组马尔可夫叠加传输研究

doi:10.11959/j.issn.1000-436x.2017153

Abstract

Abstract:

Based on the equivalent genie-aided system,the bit-error rate of the block Markov superposition transmission system was analyzed and the union bound of the bit-error rate of the genie-aided system was derived.When the bit-error rate was extremely low at which the Monte Carlo simulation was time-consuming,the union bound could be adopted to evaluate the performance of the block Markov superposition transmission system.Simulations under turbulence conditions from weak to strong are performed which show that,in the low bit-error rate region,performance of the block Markov superposition transmission system matches well with the lower bound.It is also illustrated that the derived union bound matches well with Monte Carlo simulation result.At the BER of 10^-5,block Markov superposition transmission system with transmission memory 2 performs within 1 dB away from the Shannon limit.

Key words: optical wireless communication, turbulence effect, block Markov superposition transmission, union bound, Gamma-Gamma channel model

CLC Number:

TN929.12

Jin-shun ZHU,Xiao MA. Block Markov superposition transmission over turbulence channels in outdoor optical wireless communication[J]. Journal on Communications, 2017, 38(7): 131-140.

Figures/Tables 8

References 28

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