Power-fixed and power-aware MAC protocols for multihop wireless networks with a large interference area

Supeng Leng, Yan Zhang, Hsiao Hwa Chen, Jie Xiang, Mohsen Guizani

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

The IEEE 802.11 medium-access control (MAC) protocol is usually considered to be a default standard in multihop wireless networks. However, in a multihop network with a large interference range, the request-to-send/clear-to-send (RTS/CTS) handshake and virtual carrier sensing mechanism may not be able to eliminate interference or solve hidden- and exposed-terminal problems. This paper proposes two new MAC protocols, i.e., the power-fixed dual (PFD) and power-aware dual (PAD) busy-tone schemes, both of which are able to effectively prevent collision of data/acknowledgment (ACK) packets and are applicable in various open-space environments with different path-loss characteristics. Analytical models are developed to evaluate their performance in terms of the blocking area, saturation throughput, and capability of mitigating aggregate interference of simultaneous transmissions. Numerical examples are presented to show the effectiveness of the proposed MAC protocols and the interaction between performance metrics and key parameters. Analysis and simulation results indicate that both PFD and PAD schemes can achieve a much higher throughput and a lower packet-collision ratio than IEEE 802.11 distributed coordination function (DCF), conservative CTS reply (CCR), and dual busy-tone multiple-access (DBTMA) schemes.

原文English
頁(從 - 到)2966-2976
頁數11
期刊IEEE Transactions on Vehicular Technology
58
發行號6
DOIs
出版狀態Published - 2009

All Science Journal Classification (ASJC) codes

  • 汽車工程
  • 航空工程
  • 電氣與電子工程
  • 應用數學

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