信息与控制2011，Vol.40Issue(3)：323-330,8.DOI:10.3724/SP.J.1219.2011.00323
基于协作通信技术的无线非再生中继组播网络中的功率最优分配
Optimal Power Allocation for Wireless Multicast Networks with Non-regenerative Relaying Based on Cooperative Communication Technology
摘要
Abstract
Aiming at the problem of the optimal joint power allocation for cooperative multicast communication sys tems in the wireless networks with non-regenerative relaying. a new transmission scheme based on the multi-user diversity cooperative protocol (MDP) is adopted. When the total power is constant, diversity-multiplexing gain tradeoff is used to analyze system performance. Taking the minimum SFEP (system frame error probability) as target, an optimal power allo cation scheme between source and relay is designed. With the lower bound of SFEP in high SNR (signal noise ratio) as the objective function, the optimal solution of system power allocation is obtained by Lagrange multiplier method. Simulation re sults show that compared with the network using traditional transmission scheme, the network adopting transmission scheme based on MDP possesses higher ceiling in diversity gain and multiplexing gain, therefore, has better system performance.关键词
无线组播网络/协作通信技术/系统误帧率/功率优化分配Key words
wireless multicast network/ cooperative communication technology/ system frame error probability/ optimal power allocation分类
信息技术与安全科学引用本文复制引用
张凯,钱焕延..基于协作通信技术的无线非再生中继组播网络中的功率最优分配[J].信息与控制,2011,40(3):323-330,8.基金项目
国防科工委应用基础资金资助项目(JI300D004). （JI300D004）
