Uplink user allocation scheme in cognitive coexistent cellular network  

作　　者：刘婷婷 Wang Mao Shu Feng Wang Jianxin Pan Ziyu 

机构地区：[1]School of Communication Engineering,Nanjing Institute of Technology [2]School of Electronic Engineering and Optoelectronic Techniques,Nanjing University of Science and Technology

出　　处：《High Technology Letters》2014年第4期376-382,共7页高技术通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.61271230);the Starting Fund for Science Research of NJIT(No.YKJ201205);the Open Research Fund of National Mobile Communications Research Laboratory(No.2013D02)

摘　　要：In order to address spectrum resource scarcity in traditional cellular networks,television(TV)white space is considered as a potential solution to offload a portion of network traffic and enlarge network capacity.This paper describes a cognitive cellular network which allocates low geometry users to the TV white space based on a proportional fair criterion.An uplink user allocation scheme is proposed and the validity of the proposed scheme is established by simulation of the cellular network usage in conjunction with the TV white space.The simulation results show clear improvements in both the user and the system performance with the cognitive coexistent cellular network compared with the traditional cellular network,and that the performance of the proposed user allocation scheme is superior to other user allocation schemes.In order to address spectrum resource scarcity in traditional cellular networks,television （TV） white space is considered as a potential solution to offload a portion of network traffic and enlarge network capacity.This paper describes a cognitive cellular network which allocates low geometry users to the TV white space based on a proportional fair criterion.An uplink user allocation scheme is proposed and the validity of the proposed scheme is established by simulation of the cellular network usage in conjunction with the TV white space.The simulation results show clear improvements in both the user and the system performance with the cognitive coexistent cellular network compared with the traditional cellular network,and that the performance of the proposed user allocation scheme is superior to other user allocation schemes.

关 键 词：cognitive radio TV white space spectrum efficiency system throughput fractional frequency reuse 

分 类 号：TN929.53[电子电信—通信与信息系统]