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This approach provides a possibility to predict the bit-error rate (BER) of a turbo code system with only the extrinsic information transfer chart. It is shown that extrinsic information transfer charts are powerful tools to analyze and optimize the convergence behavior of iterative systems utilizing the turbo principle, i.e., systems exchanging and refining extrinsic information. The idea is to consider the associated soft-input soft-output (SISO) stages as information processors, which map input a priori log likelihood ratios (LLRs) onto output extrinsic LLRs, the information content being obviously assumed to increase from input to output, and introduce them to the design of turbo systems without the reliance on extensive simulation. Compared with the other methods for generating extrinsic information transfer functions, the suggested approach provides insight into the iterative behavior of linear turbo systems with substantial reduction in numerical complexity.<\/p>","DOI":"10.4018\/ijitn.2017100104","type":"journal-article","created":{"date-parts":[[2017,8,15]],"date-time":"2017-08-15T12:28:58Z","timestamp":1502800138000},"page":"26-36","source":"Crossref","is-referenced-by-count":1,"title":["Analysis of Turbo Code Behavior with Extrinsic Information Transfer Charts in High-Speed Wireless Data Services"],"prefix":"10.4018","volume":"9","author":[{"given":"Izabella","family":"Lokshina","sequence":"first","affiliation":[{"name":"MMI, SUNY at Oneonta, Oneonta, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hua","family":"Zhong","sequence":"additional","affiliation":[{"name":"MMI, SUNY at Oneonta, Oneonta, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2432","reference":[{"key":"IJITN.2017100104-0","doi-asserted-by":"publisher","DOI":"10.1007\/s12927-012-0003-4"},{"key":"IJITN.2017100104-1","doi-asserted-by":"publisher","DOI":"10.1109\/ICC.1993.397441"},{"key":"IJITN.2017100104-2","first-page":"319","article-title":"Design of serially concatenated codes based on iterative decoding convergence","author":"S.Brink","year":"2000","journal-title":"Proceedings of the second International Symposium on Turbo Codes and Related Topics"},{"key":"IJITN.2017100104-3","doi-asserted-by":"publisher","DOI":"10.1109\/26.957394"},{"key":"IJITN.2017100104-4","doi-asserted-by":"publisher","DOI":"10.1109\/LCOMM.2006.1576566"},{"key":"IJITN.2017100104-5","doi-asserted-by":"publisher","DOI":"10.1109\/26.974255"},{"key":"IJITN.2017100104-6","doi-asserted-by":"publisher","DOI":"10.1109\/ISIT.2000.866492"},{"key":"IJITN.2017100104-7","unstructured":"ETSI TS 136 212 LTE. 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