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认知Ad-hoc无线网络的跨层结构设计
引用本文:刘超.认知Ad-hoc无线网络的跨层结构设计[J].电子测量技术,2014,37(11):122-126.
作者姓名:刘超
作者单位:天津大学电子信息工程学院 天津300072
摘    要:认知ad-hoc无线网络中,提出了一种新的跨层设计方案.文章建立了认知无线网络中传统OSI 7层模型中的物理层、数据链路层及网络层的数学模型,并根据各层的数学模型特点设计了新的通信节点结构.通过提出有效信道容量的概念,实现了物理层/数据链路层/网络层的3层跨层设计,并在此基础上提出了多目标推理与决策过程新的程序设计流程图,最后使用遗传算法进行多目标优化并决策出最终的通信参数.仿真结果表明,提出的3层跨层设计的数据包投递率与系统吞吐量明显优于传统分层设计结构及双层跨层结构设计方案,即能够实现通信系统准确度及通信效率的提高.

关 键 词:认知无线电网络  跨层设计  ad-hoc技术  遗传算法  有效信道容量  功率控制

Cross-layer architecture design for cognitive Ad-Hoc wireless networks
Liu Chao.Cross-layer architecture design for cognitive Ad-Hoc wireless networks[J].Electronic Measurement Technology,2014,37(11):122-126.
Authors:Liu Chao
Affiliation:Liu Chao( School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China)
Abstract:The paper proposes a novel cross-layer architecture design for cognitive ad-hoc wireless networks.The model of the PHY,DLL and NET layers is formally defined in the first section,and then a new architecture of communication node is designed.By proposing the concept of efficient channel capacity (ECC),we realize the cross-layer design among PHY/DLL/NET.We also propose a novel multi-objective reasoning and decision-making process for programming flowchart.Finally,we use genetic algorithms (GA) for multi-objective optimization and decisionmaking of the communication parameters.Emulation results demonstrate the design can improve the accuracy and the efficiency of the communication system.
Keywords:cognitive radio networks  cross-layer design  ad-hoc  genetic algorithms  efficient channel capacity  power control
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