Design of BICM-ID for Two-Way Relay Channels
2015
会议录名称2015 INTERNATIONAL WORKSHOP ON HIGH MOBILITY WIRELESS COMMUNICATIONS (HMWC)
页码11-15
发表状态已发表
DOI10.1109/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
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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
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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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