VoIP based two-tier Cognitive Radio Network: Developing implementation techniques

2013 IEEE International Conference on Communication, Networks and Satellite (COMNETSAT) Pub Date : 2013-12-01 DOI:10.1109/COMNETSAT.2013.6870853

T. Chakraborty, I. S. Misra

{"title":"VoIP based two-tier Cognitive Radio Network: Developing implementation techniques","authors":"T. Chakraborty, I. S. Misra","doi":"10.1109/COMNETSAT.2013.6870853","DOIUrl":null,"url":null,"abstract":"Cognitive Radio Network (CRN) ensures higher utilization of spectrum by allowing secondary users to transmit in licensed frequency bands in absence of primary users. In order to reduce interference among these users, CRN imposes a maximum limit on total number of users that can be admitted in CRN. The overall user capacity is further increased by implementing VoIP based 2-tier CRN that allows another group of secondary users to transmit by exploiting silence suppression characteristics of secondary users involved in VoIP communication. The practical issues involved in designing VoIP based 2-tier CRN are discussed in this paper as it provides novel implementation design models for 2-tier CRN. Two algorithms based on message passing policy are proposed for deploying VoIP based 2-tier CRN with the aim of increasing system capacity while reducing interference among users. Detailed mathematical formulation establishes superiority of 2-tier CRN over basic CRN with 77% improvement in spectrum utilization. Performance analysis in simulation model validates the inferences drawn from mathematical model.","PeriodicalId":378333,"journal":{"name":"2013 IEEE International Conference on Communication, Networks and Satellite (COMNETSAT)","volume":"115 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE International Conference on Communication, Networks and Satellite (COMNETSAT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/COMNETSAT.2013.6870853","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 5

Abstract

Cognitive Radio Network (CRN) ensures higher utilization of spectrum by allowing secondary users to transmit in licensed frequency bands in absence of primary users. In order to reduce interference among these users, CRN imposes a maximum limit on total number of users that can be admitted in CRN. The overall user capacity is further increased by implementing VoIP based 2-tier CRN that allows another group of secondary users to transmit by exploiting silence suppression characteristics of secondary users involved in VoIP communication. The practical issues involved in designing VoIP based 2-tier CRN are discussed in this paper as it provides novel implementation design models for 2-tier CRN. Two algorithms based on message passing policy are proposed for deploying VoIP based 2-tier CRN with the aim of increasing system capacity while reducing interference among users. Detailed mathematical formulation establishes superiority of 2-tier CRN over basic CRN with 77% improvement in spectrum utilization. Performance analysis in simulation model validates the inferences drawn from mathematical model.

查看原文本刊更多论文

基于VoIP的两层认知无线网络:开发实现技术

认知无线网络(CRN)通过允许辅助用户在没有主要用户的情况下在许可的频带中传输，确保更高的频谱利用率。为了减少这些用户之间的干扰，CRN对可以进入CRN的用户总数施加了最大限制。通过实施基于VoIP的2层CRN，进一步增加了总体用户容量，该CRN允许另一组辅助用户通过利用参与VoIP通信的辅助用户的沉默抑制特性进行传输。本文讨论了基于VoIP的两层CRN设计中涉及的实际问题，为两层CRN提供了新的实现设计模型。提出了两种基于消息传递策略的基于VoIP的二层CRN部署算法，目的是在增加系统容量的同时减少用户间的干扰。详细的数学公式表明，两层CRN优于基本CRN，频谱利用率提高77%。仿真模型的性能分析验证了数学模型得出的结论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2013 IEEE International Conference on Communication, Networks and Satellite (COMNETSAT)

自引率

0.00%

发文量