Multilevel coded linear physical-layer network coding with extended mapping in Galois Field for Rayleigh fading two-way relay channels

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we propose a novel multilevel coded linear physical-layer network coding scheme with extended mapping (LPNC-EM) for Rayleigh fading two-way relay channels (TWRC). The relay node adaptively selects the linear generator matrix and directly maps the superimposed signal of the two users into the linear network coded combination over the hybrid Galois Field (GF(2 2) or GF(23)). The selection criterion ensures unambiguous decoding and maximizes the individual rate of each user. The LPNC-EM scheme forms two or three independent coding levels which facilitate the use of multilevel coding. This enables the hierarchical decode-and-forward paradigm as in [3]. The numerical results show that uncoded LPNC-EM outperforms the original physical-layer network coding (PNC) and can achieve a error performance as good as the 5QAM denoise-and-forward in [2]. Furthermore, the multilevel coded LPNC-EM also provides a superior error performance compared with the coded original PNC.

Original languageEnglish
Title of host publicationIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Pages95-99
Number of pages5
DOIs
Publication statusPublished - 1 Dec 2013
Event2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013 - London, United Kingdom
Duration: 8 Sept 201311 Sept 2013

Conference

Conference2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications, PIMRC 2013
Country/TerritoryUnited Kingdom
CityLondon
Period8/09/1311/09/13

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