Xin-Yu Shih, Cheng-Zhou Zhan, Cheng-Hung Lin, A. Wu
{"title":"A 19-mode 8.29mm2 52-mW LDPC Decoder Chipp for IEEE 802.16e System","authors":"Xin-Yu Shih, Cheng-Zhou Zhan, Cheng-Hung Lin, A. Wu","doi":"10.1109/VLSIC.2007.4342718","DOIUrl":null,"url":null,"abstract":"This paper presents a LDPC decoder chip supporting all 19 modes in IEEE 802.16e system. An efficient design strategy is proposed to reduce 31.25% decoding latency, and enhance hardware utilization ratio from 50% to 75%. Besides, we propose an early termination scheme that can dynamically adjust the number of iterations. The multi-mode chip can be maximally measured at 83.3 MHz with only 52 mW power consumption. The core area is 4.45 mm2 and the die area is 8.29 mm2.","PeriodicalId":261092,"journal":{"name":"2007 IEEE Symposium on VLSI Circuits","volume":"13 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"19","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 IEEE Symposium on VLSI Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/VLSIC.2007.4342718","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 19
Abstract
This paper presents a LDPC decoder chip supporting all 19 modes in IEEE 802.16e system. An efficient design strategy is proposed to reduce 31.25% decoding latency, and enhance hardware utilization ratio from 50% to 75%. Besides, we propose an early termination scheme that can dynamically adjust the number of iterations. The multi-mode chip can be maximally measured at 83.3 MHz with only 52 mW power consumption. The core area is 4.45 mm2 and the die area is 8.29 mm2.