Integrated implementation of fixed-point turbo decoders for LTE system

Kun Zhang, Ruigui Yao, Fanqi Gao, Ling Wang, Jie Zhang

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

In this paper, we discussed the fixed-point implementation of LTE turbo decoder with Max-Log-MAP algorithm. We focused on the non-uniform quantization scheme of received information. In addition, modular arithmetic was introduced to the state metric calculation, as well as the 'Scale' process to extrinsic information calculation. With small hardware implementation complexity, the resource overhead is reduced, and the working speed is improved. Furthermore, simulation results show that, using this proposed fixed-point implementation scheme, the decoding performance is much better than traditional Max-Log-MAP and closed to the Log-MAP algorithm, with a minor degradation less than 0.1 dB.

源语言英语
主期刊名Proceedings - 2013 Wireless and Optical Communications Conference, WOCC 2013
187-192
页数6
DOI
出版状态已出版 - 2013
活动22nd Wireless and Optical Communications Conference, WOCC 2013 - Chongqing, 中国
期限: 16 5月 201318 5月 2013

出版系列

姓名Proceedings - 2013 Wireless and Optical Communications Conference, WOCC 2013

会议

会议22nd Wireless and Optical Communications Conference, WOCC 2013
国家/地区中国
Chongqing
时期16/05/1318/05/13

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