Distance-and-rate dependent RTS/CTS reservation in wireless LAN for enhancing spatial reuse

Hiroaki Morino, Masugi Inoue, Tohru Sanefuji

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

With the emergence of functional wireless terminals, increased network capacity is needed for wireless LANs. Considering the limited available frequency channels for wireless LAN, improving spatial channel reuse performance of MAC protocol is a key requirement for this purpose. In this paper, we present a novel RTS/CTS reservation scheme for CSMA/CA which improves spatial reuse by taking account for inter-node distance in the network. The main feature of the proposed scheme is that it adaptively change range of NAV(Network Allocation Vector) depending on the distance between a source node and a destination node. The range of NAV is also changed on the current required SINR(Signal and Interference Noise Ratio) which is determined by the current transmission rate, thus this scheme can be used for multirate data transmission. Performance evaluation using a synchronous frame based media access model shows the proposed scheme improves bandwidth efficiency by about 30% at maximum compared with existing CSMA/CA with RTS/CTS.

本文言語English
ホスト出版物のタイトルProceedings - 2011 10th International Symposium on Autonomous Decentralized Systems, ISADS 2011
ページ489-494
ページ数6
DOI
出版ステータスPublished - 2011 5 12
イベント2011 10th International Symposium on Autonomous Decentralized Systems, ISADS 2011 - Tokyo and Hiroshima, Japan
継続期間: 2011 3 232011 3 27

出版物シリーズ

名前Proceedings - 2011 10th International Symposium on Autonomous Decentralized Systems, ISADS 2011

Conference

Conference2011 10th International Symposium on Autonomous Decentralized Systems, ISADS 2011
CountryJapan
CityTokyo and Hiroshima
Period11/3/2311/3/27

ASJC Scopus subject areas

  • Artificial Intelligence
  • Control and Systems Engineering

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