EEFA： Energy Efficiency Frame Aggregation Scheduling Algorithm for IEEE 802.11n Wireless Network  

作　　者：GE Zhihui LIANG Anzhong LI Taoshen 

机构地区：[1]School of Computer, Electronics and Information, Guangxi University, Guangxi Nanning, 530004, P. R. China

出　　处：《China Communications》2014年第3期19-26,共8页中国通信（英文版）

基　　金：the National Natural Science Foundation of China under Grant No.61363067，Guangxi Nature Science Foundation，Guangxi Ministry of Education Foundation

摘　　要：Packet size is restricted due to the error-prone wireless channel which drops the network energy utilization. Furthermore, the frequent packet retransmissions also lead to energy waste. In order to improve the energy efficiency of wireless networks and save the energy of wireless devices, EEFA （Energy Efficiency Frame Aggregation）, a frame aggregation based energy-efficient scheduling algorithm for IEEE 802.11n wireless network, is proposed. EEFA changes the size of aggregated frame dynamically according to the frame error rate, so as to ensure the data transmission and retransmissions completed during the TXOP and reduce energy consumption of channel contention. NS2 simulation results show that EEFA algorithm achieves better performance than the original frame-aggregation algorithm.Packet size is restricted due to the error-prone wireless channel which drops the network energy utilization.Furthermore,the frequent packet retransmissions also lead to energy waste.In order to improve the energy efficiency of wireless networks and save the energy of wireless devices,EEFA(Energy Efficiency Frame Aggregation),a frame aggregation based energy-efficient scheduling algorithm for IEEE 802.1 In wireless network,is proposed.EEFA changes the size of aggregated frame dynamically according to the frame error rate,so as to ensure the data transmission and retransmissions completed during the TXOP and reduce energy consumption of channel contention.NS2simulation results show that EEFA algorithm achieves better performance than the original frame-aggregation algorithm.

关 键 词：WLAN energy efficiency packet size frame aggregation IEEE802.1 ln RETRANSMISSION 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构] TN92[自动化与计算机技术—计算机科学与技术]