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无线Ad Hoc网络中QoS感知的跨层资源分配算法 被引量：6

QoS-Aware Cross Layer Resource Allocation Algorithm in Wireless Ad Hoc Networks
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摘要 在分析无线Ad Hoc网络资源分配模型的基础上,提出一种QoS感知的跨层资源分配算法CL-QARA(cross layer QoS aware resource allocation).其主要思想是,引入价格作为资源分配的度量指标,以QoS带宽需求为参数,将网络层的动态资源分配信息与MAC层CSMA/CA接入机制相结合,以改进MAC层的冲突退避算法.设计了改进的退避算法和呼叫接入控制算法,以实现MAC层与网络层的跨层技术.通过QoS感知的资源分配算法和跨层技术协同工作,为QoS服务提供了业务保障.仿真结果表明,CL-QARA算法具有良好的收敛性和稳定性.与其他算法相比,CL-QARA能够有效地提供QoS保证,提高了网络的效用和性能. Based on analyzing the resource allocation model in wireless Ad Hoc networks, a QoS-aware cross layer resource allocation algorithm, CL-QARA （cross layer QoS aware resource allocation） algorithm, is proposed. The purpose of CL-QARA algorithm is to introduce price and QoS bandwidth to measure resource allocation. The dynamic resource allocation information in the network layer is combined with the CSMA/CA admission control in the MAC layer to improve the backoff algorithm. A new backoff algorithm and call admission control algorithm is designed to implement a cross layer technique between the MAC layer and network layer. The QoS-aware resource allocation algorithm cooperates with the cross layer technique to provide the QoS guarantee. The simulation results show that CL-QARA has good convergence and stability. Compared to other algorithms, CL-QARA provides better QoS guarantee. CL-QARA also improves the network utility and performance.
作者 韩冰青 张宏 刘凤玉 陈伟
机构地区 南京理工大学计算机科学与技术学院 南京审计学院信息科学学院
出处 《软件学报》 EI CSCD 北大核心 2010年第12期3138-3150,共13页 Journal of Software
基金 国家自然科学基金Nos.60903027 70701018 70971068 江苏省自然科学基金Nos.BK2007593 BK2009396 江苏省高校自然科学研究项目No.10KJB520008~~
关键词 资源分配 AD HOC网络 服务质量 跨层技术 价格 resource allocation ad hoc network QoS cross-layer technique price
分类号 TP338.8 [自动化与计算机技术—计算机系统结构]
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参考文献16

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同被引文献76

  • 1张云璐,刘咏宁,谢铭,沈阳,李石君.基于FOAF演化博弈的网络资源可信度判别[J].计算机研究与发展,2011,48(S3):334-342. 被引量：2
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软件学报
2010年 第12期

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