基于链路可用时间的认知无线网络拓扑控制算法

doi:10.16182/j.issn1004731x.joss.201703021

系统仿真学报 ›› 2017, Vol. 29 ›› Issue (3): 624-629.doi: 10.16182/j.issn1004731x.joss.201703021

基于链路可用时间的认知无线网络拓扑控制算法

杨怀德

东莞职业技术学院计算机工程系,广东东莞 523808

收稿日期:2016-02-16 修回日期:2016-08-11 出版日期:2017-03-08 发布日期:2020-06-02
作者简介:杨怀德(1983-),男,湖北黄冈,硕士,工程师,研究方向为网络通信、智能算法。
基金资助:
国家自然科学基金(61302068)

Topology Control Algorithm Based on Link Available Time for Cognitive Radio Network

Yang Huaide

Computer Engineering, Dongguan Polytechnic, Dongguan 523808, China

Received:2016-02-16 Revised:2016-08-11 Online:2017-03-08 Published:2020-06-02

摘要/Abstract

摘要： 针对认知无线网络的链路可用性受节点移动、主用户干扰、节点剩余能量的影响,并引起网络拓扑结构频繁变化的问题,提出了一种基于链路可用时间预测的网络拓扑控制算法。算法综合考虑上述影响因素并运用概率原理预测链路可用时间,构建具有最长可用时间链路的稳定拓扑图。仿真实验表明,算法能够充分利用移动性低、受主用户干扰少、剩余能量大的链路,简化了网络拓扑,有效减少链路断裂导致的拓扑重构和路由开销,提升了网络的性能。

关键词: 拓扑控制, 认知无线网络, 链路可用时间, 预测

Abstract: The topology changes frequently in cognitive wireless network as nodes' mobility, the main user interference, residual energy of nodes which cause link unavailable. A new topology control algorithm based on predict of link available time was proposed to resolve the problem. The algorithm forecasted link available time using probabilistic principles, and built a stable topology with longest available time links. Simulation results show that the new algorithm can take advantage of links with low mobility nodes, less interference caused by the primary user, and large remaining energy, simplify the network topology, effectively reduce the cost of the link topology reconfiguration and routing caused by link fault, and improve network performance.

Key words: topology control, cognitive radio network, link available time, prediction

中图分类号:

TN929.52

杨怀德. 基于链路可用时间的认知无线网络拓扑控制算法[J]. 系统仿真学报, 2017, 29(3): 624-629.

Yang Huaide. Topology Control Algorithm Based on Link Available Time for Cognitive Radio Network[J]. Journal of System Simulation, 2017, 29(3): 624-629.

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基于链路可用时间的认知无线网络拓扑控制算法

Topology Control Algorithm Based on Link Available Time for Cognitive Radio Network

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