{"title":"基于 802.11 无线网格网络的新型多通道 MAC 协议","authors":"Hongjiang Lei, Zhi Ren, Chao Gao, Yongcai Guo","doi":"10.1109/ICCSEE.2012.9","DOIUrl":null,"url":null,"abstract":"Dedicated control channel protocol is a kind of classic multi-channel MAC (Medium Access Control) protocol, in which a common channel is used as a control channel to negotiate, and the remaining channels are used for data exchange. However, a large number of overhead produced in channel consultation easily leads to control channel saturation problem, which reduces both the network throughput and channel utilization. In this paper, we propose a new multiple radio MAC protocol named Enhanced Dedicated Control Channel (EDCC) protocol. A strategy named TXOP (Transmission Opportunity) is used to solve this problem for WMNs. Several continuous data frames don't need to negotiate channel and are transmitted on the same channel which was selected before. This scheme can drastically reduce the overhead for consultation on the control channel and make the common control channel become not as busy as before. Simulation results show that EDCC improves the throughput of each data channel through reducing consultation overhead and makes the control channel be able to support negotiation for more data channels. As a result, system performance is improved.","PeriodicalId":132465,"journal":{"name":"2012 International Conference on Computer Science and Electronics Engineering","volume":"5 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"14","resultStr":"{\"title\":\"A New Multi-channel MAC Protocol for 802.11-based Wireless Mesh Networks\",\"authors\":\"Hongjiang Lei, Zhi Ren, Chao Gao, Yongcai Guo\",\"doi\":\"10.1109/ICCSEE.2012.9\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Dedicated control channel protocol is a kind of classic multi-channel MAC (Medium Access Control) protocol, in which a common channel is used as a control channel to negotiate, and the remaining channels are used for data exchange. However, a large number of overhead produced in channel consultation easily leads to control channel saturation problem, which reduces both the network throughput and channel utilization. In this paper, we propose a new multiple radio MAC protocol named Enhanced Dedicated Control Channel (EDCC) protocol. A strategy named TXOP (Transmission Opportunity) is used to solve this problem for WMNs. Several continuous data frames don't need to negotiate channel and are transmitted on the same channel which was selected before. This scheme can drastically reduce the overhead for consultation on the control channel and make the common control channel become not as busy as before. Simulation results show that EDCC improves the throughput of each data channel through reducing consultation overhead and makes the control channel be able to support negotiation for more data channels. As a result, system performance is improved.\",\"PeriodicalId\":132465,\"journal\":{\"name\":\"2012 International Conference on Computer Science and Electronics Engineering\",\"volume\":\"5 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-03-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"14\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 International Conference on Computer Science and Electronics Engineering\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCSEE.2012.9\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 International Conference on Computer Science and Electronics Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCSEE.2012.9","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 14
摘要
专用控制信道协议是一种经典的多信道 MAC（Medium Access Control，介质访问控制）协议，其中一个公共信道作为控制信道进行协商，其余信道用于数据交换。然而，信道协商中产生的大量开销容易导致控制信道饱和问题，从而降低网络吞吐量和信道利用率。本文提出了一种新的多无线电 MAC 协议，名为增强型专用控制信道（EDCC）协议。一种名为 TXOP（传输机会）的策略被用来解决 WMN 的这一问题。多个连续数据帧无需协商信道，而是在之前选定的同一信道上传输。这种方案可以大大减少控制信道上的协商开销，使公共控制信道不再像以前那样繁忙。仿真结果表明，EDCC 通过减少协商开销提高了每个数据信道的吞吐量，并使控制信道能够支持更多数据信道的协商。因此，系统性能得到了提高。
A New Multi-channel MAC Protocol for 802.11-based Wireless Mesh Networks
Dedicated control channel protocol is a kind of classic multi-channel MAC (Medium Access Control) protocol, in which a common channel is used as a control channel to negotiate, and the remaining channels are used for data exchange. However, a large number of overhead produced in channel consultation easily leads to control channel saturation problem, which reduces both the network throughput and channel utilization. In this paper, we propose a new multiple radio MAC protocol named Enhanced Dedicated Control Channel (EDCC) protocol. A strategy named TXOP (Transmission Opportunity) is used to solve this problem for WMNs. Several continuous data frames don't need to negotiate channel and are transmitted on the same channel which was selected before. This scheme can drastically reduce the overhead for consultation on the control channel and make the common control channel become not as busy as before. Simulation results show that EDCC improves the throughput of each data channel through reducing consultation overhead and makes the control channel be able to support negotiation for more data channels. As a result, system performance is improved.
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