

FOLLOWUS
School of Computer and Communication, Lanzhou University of Technology, Lanzhou 730050, China
Chan-fei WANG, E-mail: wangchanfei@bupt.edu.cn
[ "Ji-ai HE, E-mail:hejiai@lut.cn" ]
[ "Wei-fang WANG, E-mail:wwf88@126.com" ]
[ "Ya-mei XU, E-mail:yameixu@126.com" ]
Received:07 February 2018,
Revised:2019-;9-;4,
Published:2019-09
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Chan-fei WANG, Ji-ai HE, Wei-fang WANG, et al. Semidefinite relaxation aided noncoherent detection in two-way relay transmission[J]. Frontiers of Information Technology & Electronic Engineering, 2019, 20(9): 1259-1265.
Chan-fei WANG, Ji-ai HE, Wei-fang WANG, et al. Semidefinite relaxation aided noncoherent detection in two-way relay transmission[J]. Frontiers of Information Technology & Electronic Engineering, 2019, 20(9): 1259-1265. DOI: 10.1631/FITEE.1800096.
提出一种双向中继传输广播阶段高性能非相干传输方案,即不需要信道估计的多符号差分检测算法。在下行阶段首次引入基于广义似然比检验的多符号差分检测(GLRT-MSDD)。进一步转换GLRT-MSDD,得到基于半定松弛的多符号差分检测(SDR-MSDD),此转化过程降低了算法实现的复杂度。性能分析和仿真结果表明,在双向中继传输中,所提SDR-MSDD方法以合理复杂度得到接近于GLRT-MSDD方法的误码性能。
A high-performance noncoherent transmission scheme is proposed in the broadcasting phase of a twoway relay transmission (TWRT)
where multiple-symbol differential detection (MSDD) is performed because of its excellent detection performance with no channel estimation. Specifically
the generalized likelihood ratio test aided MSDD (GLRT-MSDD) is developed for the down-link. Furthermore
GLRT-MSDD is reformulated and a semidefinite relaxation aided MSDD (SDR-MSDD) is proposed. The reformulation of GLRT-MSDD to SDR-MSDD is desirable owing to its reduced complexity. Performance analysis and the simulations validate that the proposed SDR-MSDD provides the bit-error-rate performance close to that of GLRT-MSDD with reasonable complexity in TWRT.
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