Open AccessBidirectional satellite communication under same frequency transmission with non‐linear self‐interference reduction algorithm
Author(s) -
Tang Chengkai,
Zhang Lingling,
Zhang Yi,
Song Houbing
Publication year - 2018
Publication title -
iet communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.355
H-Index - 62
eISSN - 1751-8636
pISSN - 1751-8628
DOI - 10.1049/iet-com.2017.0662
Subject(s) - computer science , communications satellite , asynchronous communication , transmission (telecommunications) , reduction (mathematics) , algorithm , interference (communication) , channel (broadcasting) , spectral efficiency , adjacent channel interference , satellite , electronic engineering , telecommunications , mathematics , engineering , geometry , aerospace engineering
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.