计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2014年
7期
2295-2298
,共4页
段德全%杨育捷%穆晓霞
段德全%楊育捷%穆曉霞
단덕전%양육첩%목효하
分布式功率控制%中断概率%数据包完成时间%凸优化%无线网络
分佈式功率控製%中斷概率%數據包完成時間%凸優化%無線網絡
분포식공솔공제%중단개솔%수거포완성시간%철우화%무선망락
distributed power control%outage probability%data packets completion time%convex optimization%wireless networks
考虑到功率控制对无线网络性能的影响，讨论了无线多跳网络中的分布式功率控制问题。以网络中每个用户节点数据包传送完成时间的最小化为目标，以凸优化为数学工具，考虑中断现象对网络性能的影响，把功率分配问题构造为一个凸优化问题，提出一种考虑中断概率的分布式功率控制算法。仿真结果表明，该算法具有快速收敛性及有效性。
攷慮到功率控製對無線網絡性能的影響，討論瞭無線多跳網絡中的分佈式功率控製問題。以網絡中每箇用戶節點數據包傳送完成時間的最小化為目標，以凸優化為數學工具，攷慮中斷現象對網絡性能的影響，把功率分配問題構造為一箇凸優化問題，提齣一種攷慮中斷概率的分佈式功率控製算法。倣真結果錶明，該算法具有快速收斂性及有效性。
고필도공솔공제대무선망락성능적영향，토론료무선다도망락중적분포식공솔공제문제。이망락중매개용호절점수거포전송완성시간적최소화위목표，이철우화위수학공구，고필중단현상대망락성능적영향，파공솔분배문제구조위일개철우화문제，제출일충고필중단개솔적분포식공솔공제산법。방진결과표명，해산법구유쾌속수렴성급유효성。
Considering the influence of power control in wireless networks,the problem of distributed power control over Ad Hoc wireless networks was discussed.The power control problem was formulated as a convex optimization problem that minimized the summation of packets completion time at each node.A distributed power control method which considering the outage proba-bility was proposed to solve the problem where each node only needed to exchange information with its neighbors.Finally,the algorithm and the associated implementation issues with a simulation example were illustrated.
