Abstract
A high-performance noncoherent transmission scheme is proposed in the broadcasting phase of a two-way 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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Chan-fei WANG, Ji-ai HE, Wei-fang WANG, and Ya-mei XU declare that they have no conflict of interest.
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Project supported by the Hongliu Excellent Youth Talent Support Program of Lanzhou University of Technology and the National Natural Science Foundation of China (Nos. 61561031 and 61562058)
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Wang, Cf., He, Ja., Wang, Wf. et al. Semidefinite relaxation aided noncoherent detection in two-way relay transmission. Frontiers Inf Technol Electronic Eng 20, 1259–1265 (2019). https://doi.org/10.1631/FITEE.1800096
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DOI: https://doi.org/10.1631/FITEE.1800096
Key words
- Multiple-symbol differential detection
- Generalized likelihood ratio test
- Semidefinite relaxation
- Two-way relay transmission