Exploiting transmission opportunities in heterogeneous wireless networks:a transmission power saving perspective  

作　　者：JU HongHao LI JianDong LONG Yan YANG XiaoNiu 

机构地区：[1]State Key Laboratory of Integrated Service Networks,Xidian University [2]No.36 Research Institute of China Electronics Technology Group Corporation

出　　处：《Science China(Information Sciences)》2014年第2期127-133,共7页中国科学（信息科学）（英文版）

基　　金：supported by National Natural Science Foundation of China(Grant No.61231008);National Natural Science Foundation of China(Grant No.61101143);National Basic Research Program of China(Grant No.2009CB320404);Program for Changjiang Scholars and Innovative Research Team in University(PCSIRT)(Grant No.IRT0852);111 Project(Grant No.B08038)

摘　　要：Exploiting transmission opportunities in dimensions of user equipments （UEs）, radio access networks （RANs）, and radio resource units （RRUs）, in heterogeneous wireless networks （HWNs）, we focus on a new perspective of saving the uplink transmission power, so as to lengthen the battery life time of UEs. Moreover, to ensure the quality of service for each UE, we guarantee each a minimal transmission rate. To achieve the above HWN control objective, we have to make an efficient matching among UEs, RANs, and RRUs, which is formulated as a binary linear optimization problem. Due to its NP-hard complexity, we develop a rate-power efficiency based HWN control algorithm with low computational complexity. We verify the performance of our HWN control scheme through simulation. Extensive simulation results demonstrate the advantage of our HWN control method in saving the uplink transmission power and guaranteeing the UE transmission rate requirement.Exploiting transmission opportunities in dimensions of user equipments （UEs）, radio access networks （RANs）, and radio resource units （RRUs）, in heterogeneous wireless networks （HWNs）, we focus on a new perspective of saving the uplink transmission power, so as to lengthen the battery life time of UEs. Moreover, to ensure the quality of service for each UE, we guarantee each a minimal transmission rate. To achieve the above HWN control objective, we have to make an efficient matching among UEs, RANs, and RRUs, which is formulated as a binary linear optimization problem. Due to its NP-hard complexity, we develop a rate-power efficiency based HWN control algorithm with low computational complexity. We verify the performance of our HWN control scheme through simulation. Extensive simulation results demonstrate the advantage of our HWN control method in saving the uplink transmission power and guaranteeing the UE transmission rate requirement.

关 键 词：heterogeneous wireless networks power saving minimal rate requirement binary linear program-ming rate-power efficiency 

分 类 号：TN92[电子电信—通信与信息系统]