Increasing Indoor Spectrum Sharing Capacity using Smart Reflect-Array

被引:179
作者
Tan, Xin [1 ]
Sun, Zhi [1 ]
Jornet, Josep M. [1 ]
Patios, Dimitris [1 ]
机构
[1] SUNY Buffalo, Dept Elect Engn, Buffalo, NY 14260 USA
来源
2016 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2016年
基金
美国国家科学基金会;
关键词
NETWORKS;
D O I
10.1109/ICC.2016.7510962
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The radio frequency (RF) spectrum becomes overly crowded in some indoor environments due to the high density of users and bandwidth demands. To accommodate the tremendous wireless data demands, efficient spectrum-sharing approaches are highly desired. To this end, this paper introduces a new spectrum sharing solution for indoor environments based on the usage of a reconfigurable reflect-array in the middle of the wireless channel. By optimally controlling the phase shift of each element on the reflect-array, the useful signals for each transmission pair can be enhanced while the interferences can be canceled. As a result, multiple wireless users in the same room can access the same spectrum band at the same time without interfering each other. Hence, the network capacity can be dramatically increased. To prove the feasibility of the proposed solution, an experimental testbed is first developed and evaluated. Then, the effects of the reflect-array on transport capacity of the indoor wireless networks are investigated. Through experiments, theoretical deduction, and simulations, this paper demonstrates that significantly higher spectrum-spatial efficiency can be achieved by using the smart reflect-array without any modification of the hardware and software in the users' devices.
引用
收藏
页数:6
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