查询结果:   韩春燕.D2D通信中基于保证蜂窝用户通信质量的功率分配算法[J].计算机应用与软件,2015,32(12):83 - 87.
中文标题
D2D通信中基于保证蜂窝用户通信质量的功率分配算法
发表栏目
网络与通信
摘要点击数
705
英文标题
POWER ALLOCATION ALGORITHM BASED ON GUARANTEEING COMMUNICATION QUALITY OF CELLULAR USERS IN D2D COMMUNICATION
作 者
韩春燕 Han Chunyan
作者单位
四川民族学院计算机科学系 四川 康定 626001     
英文单位
Department of Computer Science,Sichuan University for Nationalites, Kangding 626001, Sichuan, China     
关键词
D2D通信 功率分配 拉格朗日对偶 信干噪比 凸优化
Keywords
Device-to-device (D2D) communication Power allocation Lagrange dual Signal to interference plus noise ratio (SINR) Convex optimisation
基金项目
四川省教育厅科研项目(13ZA0135)
作者资料
韩春燕,副教授,主研领域:计算机应用,计算机软件技术与理论。 。
文章摘要
针对D2D通信与蜂窝通信复用频谱资源时会产生同频干扰的问题,提出一种基于保证蜂窝用户通信质量的功率分配算法。在保证蜂窝用户平均SINR和最小SINR双重约束的基础上,建立以最大化D2D链路平均吞吐量为目标的凸优化问题,并利用拉格朗日函数推导出最优功率分配的闭式解。仿真结果表明:该算法不仅可以保证蜂窝用户通信质量,而且也能最大限度地提高D2D链路以及整个系统的总吞吐量。
Abstract
The reuse of spectrum resource between D2D communication and cellular system leads to the problem of same-frequency interference. For this issue, we proposed a power allocation algorithm which is based on guaranteeing the communication quality of cellular users. By guaranteeing the double constraints of average SINR and least SINR for cellular users, we presented the convex optimisation problem aimed at maximising the average throughput of D2D link, and used Lagrange function to deduce the closed solution of optimal power allocation. Simulation results shown that the proposed algorithm could guarantee the communication quality of cellular users, and could raise the total throughput of D2D link and the overall system as well to maximum extent.
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