Optimal Joint Resource Allocation in OFDMA-Based Relay System

摘要：

Three issues should be taken into account to improve performance in relay system with multiple channels. They are, how to allocate the power at source and relay to the subchannels, how to pair subchannels of the first hop and the second hop, and which users should be scheduled to which subchannel pair. These issues are considered to design the optimal joint resource allocation scheme in multiple orthogonal channels, multiple users system with single regenerative relay node in this paper. The deterministic optimization problem to maximize system throughput with joint transmission power constraint and users’ instantaneous data rate request constraint is formulated. Lagrange dual method is employed to derived the optimal solution. Then, the Deterministic Optimal Programming (DOP) is proposed. Finally, the computational complexity of DOP is analyzed and we evaluate the performance of it by computer simulations.

作者: Rui Yin Yu Zhang Jietao Zhang Guanding Yu Zhaoyang Zhang

作者单位: Institute of Information and Communication Engineering, Zhejiang University, Hangzhou 310027, China Wireless Research Department, Huawei Technologies Co., Ltd., Shenzhen 518129, China

会议类型: 国际会议

会议名称: 2010 International Conference on Communications,Circuits and Systems(2010年通信、电路与系统国际会议)

会议地点: 成都

会议语种:英文

页码: 78-82

在线出版日期: 2010-06-28（万方平台首次上网日期，不代表论文的发表时间）