Abstract—This paper introduces a power efficient cooperative relay system with several antennas to achieve precoding gain and distinguish multiuser with one antenna. In a common relay transmission, the performance of decode-and forward (DF) protocol is decreased when it uses higher modulation scheme. The proposed scheme not only increases a transmission data rate as one more bit per frame, but also reduces the maximum relay power consumption by a cooperative grouped relay scheme.
Index Terms—Cooperative relay, precoding gain, decode and-forward (DF), power consumption
The authors are with Dept. of Electronics and Computer Engineering, Hanyang University, Seoul, Korea(Tel.: +82-2-2220-0365; fax: +82-2- 2281-9912, E-mail address: skpark@hanyang.ac.kr).
Cite: Soobum Cho, Sang Kyu Park, and Dong Geol Ryu, "Power Efficient Cooperative Relay Systems for Multiuser MIMO," International Journal of Future Computer and Communication vol. 1, no. 2, pp. 128-130, 2012.
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