基于QoS保障的密集WLAN多维资源分配算法

摘要

A multi-dimension radio resource allocation method was proposed to improve the network performance in dense WLAN. By joint evaluation of the network covering, interference between cells and user’s QoS satisfaction, the object function of the radio resource allocation was founded and tabu search method was used to find the optimum solu-tion of the object function. The optimum solution is the resource allocation vector including the best AP set, AP’s channel set and power set. The simulation results show that the proposed method improves the network performance and provides a better guarantee of user’s QoS requirement.%针对密集无线局域网覆盖环境，以提升网络性能为目标，提出了一种多维无线资源分配方法。通过网络覆盖衡量参数、干扰衡量参数和QoS衡量参数联合评估网络性能，建立了网络性能与资源分配向量之间的优化目标函数，进而采用禁忌搜索的方法求解目标函数后得到最优多维资源分配向量，包括所用 AP、信道和功率分配向量。仿真结果表明，所提算法提升了网络性能，更好地保证了用户QoS需求。