无线多跳网络中基于中断概率约束的功率控制

摘要

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。%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.