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Design of BICM-ID for Two-Way Relay Channels | |
2015 | |
会议录名称 | 2015 INTERNATIONAL WORKSHOP ON HIGH MOBILITY WIRELESS COMMUNICATIONS (HMWC)
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页码 | 11-15 |
发表状态 | 已发表 |
DOI | 10.1109/HMWC.2015.7353346 |
摘要 | This paper investigates the iterative decoding for spectrally efficient two-way relay (TWR) communications in which two end nodes exchange information through a relay (R). With the use of physical-layer network coding (PNC), information exchange throughput can be significantly improved as only two orthogonal time slots (TS) are required to realize both the multiple access (MAC) and the broadcast (BC) transmissions. During the MAC stage, transmitted symbols from the end nodes are superimposed at R which decodes the exclusive-or (XOR) information of the two end nodes. However, with a high order modulation, symbol superposition will cause demapping ambiguity. This paper proposes a TWR communication system that employs the bit-interleaved coded modulation (BICM). The iterative decoding, namely, the BICM-ID, is introduced to dissolve the demapping ambiguity. With iterative decoding, the transmitted symbol pair probabilities can be better estimated so that the demapper can provide better coded bit information for the decoder. The proposed work generalizes the iterative demapping-decoding approach for TWR channels. Our simulation results demonstrate significant iterative decoding gains can be achieved with a tendency of approaching the XOR-decoding bound. |
关键词 | BICM iterative decoding physical-layer network coding spectrum efficiency two-way relay |
出版地 | 345 E 47TH ST, NEW YORK, NY 10017 USA |
会议地点 | Xi'an |
会议日期 | 21-23 Oct. 2015 |
URL | 查看原文 |
收录类别 | CPCI ; EI |
语种 | 英语 |
WOS研究方向 | Engineering ; Telecommunications |
WOS类目 | Engineering, Electrical & Electronic ; Telecommunications |
WOS记录号 | WOS:000380681600003 |
出版者 | IEEE |
EI入藏号 | 20161402182725 |
EI主题词 | Channel coding ; Information dissemination ; Modulation ; Network coding ; Network layers ; Wireless telecommunication systems |
EI分类号 | Information Theory and Signal Processing:716.1 ; Computer Software, Data Handling and Applications:723 ; Information Dissemination:903.2 |
WOS关键词 | NETWORK ; CODES ; CONSTELLATIONS ; QAM |
原始文献类型 | Proceedings Paper |
引用统计 | 正在获取...
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文献类型 | 会议论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/2305 |
专题 | 信息科学与技术学院_PI研究组_袁晓军组 |
通讯作者 | Chen, Li |
作者单位 | 1.Sun Yat Sen Univ, Sch Informat Sci & Technol, Guangzhou, Guangdong, Peoples R China 2.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai, Peoples R China |
推荐引用方式 GB/T 7714 | Chen, Li,Yakufu, Yushan,Yuan, Xiaojun,et al. Design of BICM-ID for Two-Way Relay Channels[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2015:11-15. |
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