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Adaptive Decode-and-Forward Cooperative Networks with Multiple Relay Nodes
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  • Adaptive Decode-and-Forward Cooperative Networks with Multiple Relay Nodes
  • Adaptive Decode-and-Forward Cooperative Networks with Multiple Relay Nodes
저자명
Vu. Ha Nguyen,Kong. Hyung-Yun
간행물명
Journal of the Korean Institute of Electromagnetic Engineering and Science
권/호정보
2011년|11권 1호|pp.5-10 (6 pages)
발행정보
한국전자파학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

We propose an adaptive cooperative scheme with a multi-relay node that achieves high bandwidth efficiency and achieves better SEP performance. In the proposed protocol, if the quality of the direct channel is better than that of the all channels from relays to destination, the source will transmit directly to the destination. Otherwise, the source broadcasts the signal and then a potential relay will be chosen to help the source. A re-transmission will also occur if the potential relay cannot be detected. The spectral efficiency is first derived by calculating the probability of each mode, i.e., direct and cooperation transmission. Subsequently, the SEP performance of M-PSK modulation for the scheme is analyzed by considering each event where the source transmits data to the destination. Finally, the obtained analytical results are verified through computer simulations.