分布式网络中功率控制策略对进度密度的影响  

Effect of the Power Control Strategy on the Density of Progress for Distributed Networks

作　　者：李娜娜[1] 兰洋[2] 陈昌海[3] 

机构地区：[1]郑州轻工业学院计算机与通信工程学院,河南郑州450002 [2]信阳师范学院计算机与信息技术学院,河南信阳464000 [3]四川工程职业技术学院电气信息工程系,四川德阳618000

出　　处：《信阳师范学院学报（自然科学版）》2014年第3期417-420,共4页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(61302118;61163017);河南省科技攻关项目(112102210321);河南省基础与前沿技术研究计划项目(122300410372);河南省教育厅科学技术研究重点项目(12B520051)

摘　　要：基于随机几何理论对分布式网络进行了建模,研究了分布式网络中的两种不同功率控制策略对进度密度的影响,从理论上推导了信道反转功率控制策略和无功率控制策略时的进度密度表达式.数值分析和仿真结果表明:信道反转功率控制策略时的进度密度要比无功率控制策略时的进度密度要大,但是由于两种功率控制策略都没有考虑到干扰功率的影响,局限于对信号本身功率的控制,所以进度密度在两种不同功率控制策略时的区别不大.Based on the theory of the stochastic geometry, the network model for the distributed networks was given. The effect on the density of progress for the distributed networks with two different power control strategies was studied, and the expressions of the density of progress with channel inversion power control strategy and no power con- trol strategy were derived. Numerical and simulation results showed that, the density of progress with channel inversion power control strategy was more than that with no power control strategy, but the difference between them was very small because these two power control strategies were limited to control of the power of the signal itself without consider- ing the influence of interference power.

关 键 词：网络容量 进度密度 中断概率 功率控制 

分 类 号：TN911.22[电子电信—通信与信息系统]