{"title":"TDMA与基于csma的协议在SINR模型中的性能评估","authors":"S. Banaouas, P. Muhlethaler","doi":"10.1109/EW.2009.5358007","DOIUrl":null,"url":null,"abstract":"In this paper, we compare time division and carrier sense multiple access schemes (TDMA and CSMA) in a signal to noise and interference ratio (SINR)-based model. We assume that the network nodes are distributed a Poisson process evenly distributed and have pending packets. First we study the distribution of the SINR in TDMA-based protocols where the same time-slot is reserved in given radius of n hops (n = 2 in most of these protocols). The same study is carried for CSMA-based access protocols where the reuse is controlled with the carrier-sense threshold. We then compare the total throughput of TDMA and CSMA based access protocols in an outage model. In this model a packet is considered as correctly received if its SINR is above a given threshold. Finally, we conduct the same comparison between TDMA and CSMA-based access protocols in a model of adaptive coding. In this model, the actual SINR rules the transmission coding. We idealize the performance of this technique using the Shannon's well know formula W = W0log(1 + SINR).","PeriodicalId":412079,"journal":{"name":"2009 European Wireless Conference","volume":"112 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":"{\"title\":\"Performance evaluation of TDMA versus CSMA-based protocols in SINR models\",\"authors\":\"S. Banaouas, P. Muhlethaler\",\"doi\":\"10.1109/EW.2009.5358007\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, we compare time division and carrier sense multiple access schemes (TDMA and CSMA) in a signal to noise and interference ratio (SINR)-based model. We assume that the network nodes are distributed a Poisson process evenly distributed and have pending packets. First we study the distribution of the SINR in TDMA-based protocols where the same time-slot is reserved in given radius of n hops (n = 2 in most of these protocols). The same study is carried for CSMA-based access protocols where the reuse is controlled with the carrier-sense threshold. We then compare the total throughput of TDMA and CSMA based access protocols in an outage model. In this model a packet is considered as correctly received if its SINR is above a given threshold. Finally, we conduct the same comparison between TDMA and CSMA-based access protocols in a model of adaptive coding. In this model, the actual SINR rules the transmission coding. We idealize the performance of this technique using the Shannon's well know formula W = W0log(1 + SINR).\",\"PeriodicalId\":412079,\"journal\":{\"name\":\"2009 European Wireless Conference\",\"volume\":\"112 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-05-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"8\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 European Wireless Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/EW.2009.5358007\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 European Wireless Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EW.2009.5358007","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Performance evaluation of TDMA versus CSMA-based protocols in SINR models
In this paper, we compare time division and carrier sense multiple access schemes (TDMA and CSMA) in a signal to noise and interference ratio (SINR)-based model. We assume that the network nodes are distributed a Poisson process evenly distributed and have pending packets. First we study the distribution of the SINR in TDMA-based protocols where the same time-slot is reserved in given radius of n hops (n = 2 in most of these protocols). The same study is carried for CSMA-based access protocols where the reuse is controlled with the carrier-sense threshold. We then compare the total throughput of TDMA and CSMA based access protocols in an outage model. In this model a packet is considered as correctly received if its SINR is above a given threshold. Finally, we conduct the same comparison between TDMA and CSMA-based access protocols in a model of adaptive coding. In this model, the actual SINR rules the transmission coding. We idealize the performance of this technique using the Shannon's well know formula W = W0log(1 + SINR).
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