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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2009.1
- 수록면
- 1 - 8 (8page)
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Cooperative diversity is a novel technique to improve diversity gains, capacity gains, and energy saving. This technique involves multiple terminals sharing resources in order to build a virtual antenna array in a distributed fashion. In this paper, we propose a multi-user cooperative diversity protocol called Relay-assisted Multiple Access Channel(R-MAC) that allows multiple source terminals to transmit their signals simultaneously and the relay terminal forwards the aggregated signal received from the source terminals to the destination terminal. The proposed protocol converts the distributed antenna channels into an effective MIMO channel by exploiting a relay, increasing both diversity gain and system throughput. We investigate the performance of the proposed protocol in terms of outage probability and diversity-multiplexing tradeoff where we assume block fading channel environment. Our simulation results show that the proposed protocol outperforms direct transmission in the high spectral efficiency regime where the conventional cooperative diversity protocols cannot outperform direct transmission.
목차
ABSTRACT
Ⅰ. Introduction
Ⅱ. System Model
Ⅲ. LTW-AF and NAF Cooperative Diversity
Ⅳ. Multi-User Cooperative Diversity
Ⅴ. Performance Analysys
Ⅵ. Simulation Results
Ⅶ. Conclusion
References
참고문헌 (10)
참고문헌 신청
1. [학술지(정기간행물)] - A. Sendonaris / 2003 / User cooperation diversity, Part I: System descriptioin / IEEE Transaction on. Communication 51 (11) : 1927 ~ 1938
2. [학술대회논문] - T. E. Hunter / 2002 / Cooperative diversity through coding / Proc. IEEE Int. Symp. Information Theory (ISIT)
3. [학술지(정기간행물)] - J. N. Laneman / 2004 / Cooperative diversity in wireless networks: Efficient protocols and outage behavior / IEEE Transaction on Information Theory 50 (12) : 3062 ~ 3080
4. [학술지(정기간행물)] - R. U. Nabar / 2004 / Fading relay channels:Performance limits and space-time signal design / IEEE Journal on Selected. Areas in Communication 22 (6) : 1099 ~ 1109
5. [학술지(정기간행물)] - K. Azarian / 2005 / On the Achievable Diversity-Multiplexing Tradeoff in Half-Duplex Cooperative Channels / IEEE Transaction on Information Theory 51 (12) : 4152 ~ 4172
2. [학술대회논문] - T. E. Hunter / 2002 / Cooperative diversity through coding / Proc. IEEE Int. Symp. Information Theory (ISIT)
3. [학술지(정기간행물)] - J. N. Laneman / 2004 / Cooperative diversity in wireless networks: Efficient protocols and outage behavior / IEEE Transaction on Information Theory 50 (12) : 3062 ~ 3080
4. [학술지(정기간행물)] - R. U. Nabar / 2004 / Fading relay channels:Performance limits and space-time signal design / IEEE Journal on Selected. Areas in Communication 22 (6) : 1099 ~ 1109
5. [학술지(정기간행물)] - K. Azarian / 2005 / On the Achievable Diversity-Multiplexing Tradeoff in Half-Duplex Cooperative Channels / IEEE Transaction on Information Theory 51 (12) : 4152 ~ 4172
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UCI(KEPA) : I410-ECN-0101-2009-567-015820778