Energy-Efficient Resource Allocation in Multi-user OFDMA systems

摘要：

Energy efficiency is becoming increasingly important for wireless communications as mobile devices are battery-constrained. Unfortunately, the improvement in battery technology is much slow, leading to an exponentially increasing gap between the demand for energy and battery capacity offered. Motivated by this, in this paper we consider energy-efficient design of resource allocation for a multi-user OFDMA. Assuming full CSI at the transmitter, schemes of user selection, rate allocation and power allocation under QoS requirement are proposed to maximize the energy efficiency in unit of throughput per Joule. Simulation results demonstrate that the system energy efficiency of the proposed algorithms is close to the optimal performance without any constraints, while having low complexity.

关键词： Energy efficiency Multi-user OFDMA

作者: Ying Hu Yongming Huang Luxi Yang Jianhua Zhou

作者单位: School of Information Science and Engineering, Southeast University, Nanjing 210096, China Institute School of Information Science and Engineering, Southeast University, Nanjing 210096, China Nanjing Panda Handa Technologies Co. Ltd., Nanjing 210002, China

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）