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	格雷码的代数软判决译码研究; Algebraic soft-decision decoding of Golay codes
	段延森 ; 王琳
	2011
关键词	Golay码 可靠性译码 软判决译码 ChaseII算法 最优性条件 代数硬判决译码 Golay code reliability-based decoding algorithm soft-decision decoding Chase II algorithm optimality condition algebraic hard-decision decoding
英文摘要	基于可靠性译码的CHASE II算法实现了gOlAy码的软判决译码,获得了比代数硬判决译码更优的纠错性能,也因此提高了译码的复杂度,增加了译码延时。基于此,引入最优性条件,以快速终止CHASE译码。通过VC6.0仿真,结果表明,在bEr=10-5时,代数软判决相比硬判决有1.7 db的性能增益,加入最优性条件以后,总的仿真时间比传统的CHASE II算法节省了约87.64%,极大地提升了软判决译码的效率。; In this paper,the ChaseⅡ algorithm,which is well known as a reliability-based decoding algorithm,is used for the soft decoding of the(23,12,7)Golay code.This soft-decision decoding algorithm improves greatly the error-correcting capacity compared with algebraic hard-decision decoding algorithms,but also results in more computational complexity.To overcome this,a optimality condition is introduced to quickly terminate the ChaseⅡ decoding process.Computer simulation results got by VC6.0 show that soft decoding obtains 1.7 dB coding gain compared with hard decoding case at BER of 10-5,and the modified chase-II algorithm based on the optimality condition reduces the total simulation time by 87.64%,and thus improves greatly the decoding efficiency.; 国家自然科学基金(60972053)----
语种	zh_CN
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/122708]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	段延森,王琳. 格雷码的代数软判决译码研究, Algebraic soft-decision decoding of Golay codes[J],2011.
APA	段延森,&王琳.(2011).格雷码的代数软判决译码研究..
MLA	段延森,et al."格雷码的代数软判决译码研究".(2011).

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