MACA-P: A MAC for Concurrent Transmissions in Multi-Hop Wireless Networks

  • Authors:
  • Arup Acharya;Archan Misra;Sorav Bansal

  • Affiliations:
  • -;-;-

  • Venue:
  • PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
  • Year:
  • 2003

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Abstract

This paper presents the initial design and performance study of MACA-P, a RTS/CTS based MAC protocol that enables simultaneous transmissions in multi-hop ad-hoc wireless networks. Providing such low-cost multi-hop and high performance wireless access networks is an important enabler of pervasive computing. MACA-P is a set of enhancements to the 802.11 DCF that allows parallel transmissions in many situations when two neighboring nodes are either both receivers or both transmitters, but a receiver and a transmitter are not neighbors. Like 802.11, MACA-P contains a contention-based reservation phase prior to data transmission. However, the data transmission is delayed by a control phase interval, which allows multiple sender-receiver pairs to synchronize their data transfers, thereby avoiding collisions and improving system throughput.