콘텐츠 본문
논문 해외 국제전문학술지(SCI급) ASYMMETRIC COMPLEX SIGNALING FOR FULL-DUPLEX DECODE-AND-FORWARD RELAY CHANNELS
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2012-10
- 저자명 정의림공동(참여),김철순,이용희,성영철
- 학술지명 INTERNATIONAL CONFERENCE ON ICT CONVERGENCE
- 발행처명 IEEE
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 4
논문 초록 (Abstract)
In this paper, it is proposed to use asymmetric complex signaling in full-duplex decode-and-forward single antenna relay channels in order to eliminate the self-interference signal and increase the throughput. Specifically, the relay system considered in this paper is as follows: the source has a transmit weight; the relay has an Rx processing whose operation is an inner product between the received signal and a weight; the relay has a transmit weight as well; the destination has a receive weight. The objective is to find the optimum weights to increase the smaller SNR between source-relay and relay-destination under the constraint of perfect self-interference nulling. We convert the complex variable into a 2-dimensional real vector. As a consequence, the problem becomes a joint vector optimization problem. The simulation result shows that the proposed signalling achieves higher rate than the conventional full-duplex relay.
