A novel OFDM-based MAC protocol for wireless LANs

Fangxin XU, Qinglin ZHAO, Yu ZENG, Jie YANG, Hongning DAI, Pei DANG

Research output: Book Chapters | Papers in Conference ProceedingsConference paper (refereed)Researchpeer-review

2 Citations (Scopus)

Abstract

Conventional 802.11 networks perform contention and data transmission serially over the whole channel. This leads to low throughput efficiency. In this paper, we propose a novel CSMA/CQ (carrier sense multiple access/contention queuing) to improve the throughput efficiency. In CSMA/CQ, each node performs contention and data transmission concurrently over two separate subchannels, where a contention queue is introduced to coordinate the concurrency. CSMA/CQ inherits the conventional distributed coordination mechanism on contention, and adopts a centralized control idea on data transmission without requiring strict time synchronization. As a result, CSMA/CQ can achieve far higher throughput than conventional 802.11 networks. Extensive simulations verify that the efficiency of CSMA/CQ.

Original languageEnglish
Title of host publicationProceedings of the 2015 10th International Conference on Communications and Networking in China, CHINACOM 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages222-226
Number of pages5
ISBN (Electronic)9781479987955
DOIs
Publication statusPublished - 22 Jun 2016
Externally publishedYes
Event10th International Conference on Communications and Networking in China, CHINACOM 2015 - Shanghai, China
Duration: 15 Aug 201517 Aug 2015

Publication series

NameProceedings of the 2015 10th International Conference on Communications and Networking in China, CHINACOM 2015

Conference

Conference10th International Conference on Communications and Networking in China, CHINACOM 2015
Country/TerritoryChina
CityShanghai
Period15/08/1517/08/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

  • Asynchronous Transmission
  • OFDM
  • RTS/CTS

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