An Energy Saving Scheduling Scheme for OFDMA Two-Hop Relay Systems

作者：Huang Yanan^*; Fang Xuming; Zhao Yue

来源：IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences, 2010, E93A(11): 2320-2327.

DOI：10.1587/transfun.E93.A.2320

• relay energy saving
• QoS

Being a new feature of next generation of wireless net works Mobile Multi hop Relay (MMR) is proposed for the purpose of coverage extension and throughput enhancement in LTE Advanced IEEE 802 16 j/m Besides with the help of relay the system energy consumption could be well saved In this paper an energy saving scheduling scheme is proposed for OFDMA based two hop relay systems The novel scheme adjusts the modulation and coding (MC) mode and allocates the transmit power dynamically according to the resource intensity It can also guaran tee the Quality of Service (QoS) of different services by setting the scheduling priority The simulation results show that the novel scheduling scheme can reduce energy consumption up to 76 27% compared to the conventional scheduling scheme and achieve higher throughput while guaranteeing QoS

• 出版日期2010-11
• 单位西南交通大学