通信学报
通信學報
통신학보
JOURNAL OF CHINA INSTITUTE OF COMMUNICATIONS
2014年
3期
150-156
,共7页
无线局域网%多维资源分配%禁忌搜索%网络性能评估
無線跼域網%多維資源分配%禁忌搜索%網絡性能評估
무선국역망%다유자원분배%금기수색%망락성능평고
WLAN%multi-dimension radio resource allocation%tabu search%network performance evaluation
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。
針對密集無線跼域網覆蓋環境,以提升網絡性能為目標,提齣瞭一種多維無線資源分配方法。通過網絡覆蓋衡量參數、榦擾衡量參數和QoS衡量參數聯閤評估網絡性能,建立瞭網絡性能與資源分配嚮量之間的優化目標函數,進而採用禁忌搜索的方法求解目標函數後得到最優多維資源分配嚮量,包括所用 AP、信道和功率分配嚮量。倣真結果錶明,所提算法提升瞭網絡性能,更好地保證瞭用戶QoS需求。
침대밀집무선국역망복개배경,이제승망락성능위목표,제출료일충다유무선자원분배방법。통과망락복개형량삼수、간우형량삼수화QoS형량삼수연합평고망락성능,건립료망락성능여자원분배향량지간적우화목표함수,진이채용금기수색적방법구해목표함수후득도최우다유자원분배향량,포괄소용 AP、신도화공솔분배향량。방진결과표명,소제산법제승료망락성능,경호지보증료용호QoS수구。
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.