| OPTIMAL PUNCTURING OF TURBO CODES BASED ON ADS CRITERION |
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| 作者姓名： | 徐衡平 戎蒙恬 潘晟 赵勋 |
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| 作者单位： | Dept. of Electronic Eng.，Shanghai Jiaotong Univ.，Shanghai 200030，China |
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| 摘 要： | IntroductionTurbo codes1] has been shown to yield re-markable coding gains close to theoretical limits,yetadmitting a relatively simple iterative decordingtechnique,which are attracting the attention ofmany researchers.Owing to the parallel concate-nation,the code rate ofturbo codes,denoted as R,is low.Puncturing is the predominant strategy toconstruct high code rate turbo codes2 ,3 ] .Punctur-ing schemes are crucial to the performance ofpunc-tured turbo codes( PTC) .Since any puncturingsc…
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OPTIMAL PUNCTURING OF TURBO CODES BASED ON ADS CRITERION |
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| XU Heng ping,RONG Meng tian PAN Sheng,ZHAO Xun.OPTIMAL PUNCTURING OF TURBO CODES BASED ON ADS CRITERION[J].Journal of Shanghai Jiaotong university,2002,7(1):42-45. |
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| Authors: | XU Heng ping RONG Meng tian PAN Sheng ZHAO Xun |
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| Institution: | Dept. of Electronic Eng., Shanghai Jiaotong Univ., Shanghai 200030, China |
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| Abstract: | Puncturing is the predominant strategy to construct high code rate turbo codes. Puncturing tables are crucial to the performance of punctured turbo codes(PTC). This paper developed a new searching algorithm of optimal puncturing tables based on average distance spectrum(ADS) criterion. Consequently, some optimal puncturing tables were presented as the searching results. Finally, it presented the performance comparison among some optimal and bad puncturing tables by simulation. |
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| Keywords: | distance spectrum(DS) additive white gaussian noise(AWGN) turbo codes bit error rate(BER) |
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