Bidirectional satellite communication under same frequency transmission with non‐linear self‐interference reduction algorithm. Issue 1 (12th December 2017)

• Record Type: Journal Article
• Authors: Tang, Chengkai; Zhang, Lingling; Zhang, Yi; Song, Houbing
• Is Part Of: IET communications. Volume 12:Issue 1(2018)
• Page Start: 52
• Page End: 58
• Publication Date: 2017-12-12
• Subjects: satellite communication -- interference suppression -- radiofrequency interference -- relay networks (telecommunication) -- table lookup -- wireless channels -- digital video broadcasting -- channel coding; bidirectional satellite communication channel -- frequency transmission -- nonlinear self‐interference reduction algorithm -- two‐way relaying -- amplify‐and‐forward processing -- compensation -- system spectral efficiency -- two‐user asynchronous bidirectional relaying -- uncoded transmission -- linear adaptive canceler -- table lookup process -- DVB‐S2 standard -- bandwidth‐efficient operation; Telecommunication systems -- Periodicals; Speech processing systems -- Periodicals; 621.38205
• DOI: 10.1049/iet-com.2017.0662
• Languages: English
• ISSNs: 1751-8628

Abstract

Abstract : Two‐way (on‐frequency) relaying using simple amplify‐and‐forward processing at the satellite isan emerging technology that allows doubling of system spectral efficiency forcertain networking applications. However, the satellite channel is non‐linearand compensation for the self‐interfering signal is more difficult than onlinear channels, especially when memory effects are recognised. In this paper, we model two‐user, asynchronous, bidirectional relaying for uncodedtransmission, and proposed a bidirectional satellite communication algorithmunder same frequency transmission. First, we employ a table addressed byside‐information and the symbol to be detected to model the action of thechannel. Then, we employ a linear adaptive canceler followed by a smaller tablelookup process to cancel the self‐interference and to make decisions. In thesimulation part, we focus in the results section is upon 16‐amplitude phaseshift keying (APSK), widely employed in the DVB‐S2 standard forbandwidth‐efficient operation. Compared with the existing bidirectionalsatellite communication algorithm, our proposed algorithm have the far lesscomplexity and training time at the similar performance.