CSMA/IC: A New Class of Collision-free MAC Protocols for Ad Hoc Wireless Networks

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  • Affiliations:
  • Venue:
  • ISCC '03 Proceedings of the Eighth IEEE International Symposium on Computers and Communications
  • Year:
  • 2003

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Abstract

In this paper, we present a new collision-free MACprotocol-Carrier Sense Media Access with ID Countdown(CSMA/IC) for ad hoc wireless networks that can achieve 100%collision-free performance by solving the "hidden terminal" problemand the concurrent sending problem. Compared to CSMA/CA ofIEEE 802.11, it also improves the network's performance indecreasing the average delay of packet sending, dropping discardratio, and increases the network's throughput significantly.Furthermore, it can enable different packets with different priority toaccess the media and thus gain QoS.