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无线光通信中DPIM调制下LDPC码需求分析 被引量:1

The LDPC Requirement Analysis in DPIM for Free-Space
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摘要 介绍APD检测输出的概率分布,并且介绍DPIM调制原理,讨论在无线光通信中DPIM调制方式下,LDPC码应用的两个瓶颈问题。通过将DPIM调制改进为定长DPIM调制解决第一个问题。在APD检测输出概率分布的理论基础上,通过对LDPC码译码算法的改进,解决第二个问题。 Introduees the probability distributing for APD check output and the modulate principle of DPIM, discusses two problems of LDPC application in DPIM for Free-Space, Solves the first problem by improving DPIM to fix-length DPIM and solves the second problem by betterment the LDPC coding arithmetic basing on the probability distributing theory for APD cheek output.
作者 肖雪娜
机构地区 山东工商学院
出处 《现代计算机》 2013年第3期3-5,26,共4页 Modern Computer
关键词 无线光通信 DPIM调制 APD LDPC码 Free-Space Optical Communication DPIM Modulate APD Low-Density Parity Check(LDPC) Codes
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