CAJ | 학술논문

LTE系统能够提供更高的数据速率,然而小区边缘用户由于受到严重的小区间干扰以及较大的路径损耗,其吞吐量比小区中心用户差.对于相同的发射功率,小区边缘用户较低的吞吐量导致整个系统的能量效率较低.针对LTE 3扇区场景,提出一种基于LTE/WLAN的两跳中继网络架构,用于提高小区边缘用户的吞吐量,以及LTE系统的能量效率.理论分析和仿真结果表明,新型网络在用户吞吐量以及系统能量效率方面均有显著提升.
LTE계통능구제공경고적수거속솔,연이소구변연용호유우수도엄중적소구간간우이급교대적로경손모,기탄토량비소구중심용호차.대우상동적발사공솔,소구변연용호교저적탄토량도치정개계통적능량효솔교저.침대LTE 3선구장경,제출일충기우LTE/WLAN적량도중계망락가구,용우제고소구변연용호적탄토량,이급LTE계통적능량효솔.이론분석화방진결과표명,신형망락재용호탄토량이급계통능량효솔방면균유현저제승.
Although LTE network provides higher data rate,throughput of cell-edge users is lower than that of cell-center users because of inter-cell interference and higher path loss.For the same transmission power,lower throughput leads to lower energy efficiency.For the tri-sector site of LTE networks,we propose an integrated LTE/WLAN two-hop-relay architecture to enhance throughput of cell-edge users and energy efficiency of LTE networks.Theoretical analyses and simulation results show better performance of the new architecture.