一种提升吞吐量与能量效率的LTE/WLAN两跳中继网络 |
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作者姓名: | 董荣荣 洪佩琳 薛开平 |
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作者单位: | 中国科学技术大学电子工程与信息科学系, 合肥 230027 |
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基金项目: | Supported by National Natural Science Foundation of China(60903216,61170231) and National S&T Major Project of China(2010ZX03003-002) |
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摘 要: | 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.
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关 键 词: | LTE WLAN 中继 吞吐量 能量效率 |
收稿时间: | 2011-02-24 |
修稿时间: | 2011-04-27 |
An integrated LTE/WLAN two-hop-relay architecture for throughput and energy efficiency enhancement |
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Authors: | DONG Rong-Rong HONG Pei-Lin XUE Kai-Ping |
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Institution: | Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei 230027, China |
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Abstract: | 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. |
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Keywords: | LTE WLAN relay throughput energy efficiency |
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