标题：Relay Power Allocation Schemes for Multiuser Cooperative Communication
作者：Bai, Zhiquan; Li, Rongkai; Zhang, Haixia; Kwak, Kyungsup
作者机构：[Bai, Zhiquan; Li, Rongkai; Zhang, Haixia] Shandong Univ, Sch Informat Sci & Engn, Jinan 250100, Peoples R China.; [Kwak, Kyungsup] Inha Univ, UWB W 更多
会议名称：IEEE Wireless Communications and Networking Conference (WCNC)
会议日期：MAR 28-31, 2011
来源：2011 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC)
关键词：multiuser multi-relay; amplify-and-forward(AAF); power allocation;; quality-of-service(QoS); convex theory; second-order cone program(SOCP)
摘要：This paper investigates the power allocation algorithms based on convex theory for multiuser multi-relay amplify-and-forward (AAF) wireless cooperative network. In this system, there are multiple single-antenna users to communicate with one destination with the help of multiple relay nodes at the same time. In order to guarantee the quality-of-service (QoS) for all the users and reduce the power consumption, we propose two relay power allocation strategies, one is to minimize the total relay transmission power and the other is to maximize the minimum signal-to-noise ratio (SNR) among all the users. Simulation results and analysis demonstrate the efficiency and fairness of our proposed strategies.