Transmission Code Design for Asynchronous Full-Duplex Relaying
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AbstractFull-duplex relay systems have emerged as a promising solution to improve spectrum efficiency. Due to residual self-interference, space-time code may lose diversity gain. This study addresses this problem caused by self-interference and asynchronous transmission in full-duplex relay systems. In particular, a space-time code is designed at the transmitter and the relay to achieve diversity gain at the presence of residual self-interference. During transmission, the code at the relay can be used to estimate the residual self-interference caused by imperfect channel knowledge. The estimation result can be used to further reduce self-interference. Diversity gain can be achieved at the destination as a result of the reduction of the residual self-interference. Both theoretical analysis and simulation results demonstrate the diversity gain of our design in asynchronous full-duplex relay systems.
Acceptance Date23/09/2016
All Author(s) ListRan Cai, Yun Liu, P. C. Ching
Journal nameInternational Journal of Electrical and Computer Systems (IJECS)
Volume Number3
PublisherAvestia Publishing
Pages1 - 8
LanguagesEnglish-United Kingdom
KeywordsFull-duplex relay, asynchronous transmission, self-interference, space-time code

Last updated on 2020-30-11 at 00:51