CROMA: an enhanced slotted MAC protocol for MANETs

  • Authors:
  • Marceau Coupechoux;Bruno Baynat;Christian Bonnet;Vinod Kumar

  • Affiliations:
  • Institut Eurecom and Alcatel Research & Innovation, France Route de Nozay, 91461 Marcoussis cedex, France;University Pierre et Marie Curie, Paris, France;Institut Eurecom, Sophia-Antipolis, France;Alcatel Research & Innovation, Marcoussis, France

  • Venue:
  • Mobile Networks and Applications
  • Year:
  • 2005

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Abstract

TDMA based MAC protocols can provide a very good utilization of the shared radio resources, especially at high input loads, in synchronized mobile ad hoc networks (MANETs). Global positioning systems like GPS or GALLILEO should provide a very good timing accuracy for synchronization of nodes. This paper presents a new medium access protocol for mobile ad hoc networks, called CROMA. CROMA is collision-free and receiver-oriented. It operates in a slotted environment, in a dynamic and distributed way. In this protocol, receivers act as local base stations and can manage one or several communications on a single slot. Thus, sophisticated functions are allowed at higher layers. Moreover, the hidden terminal as well as the exposed terminal problems are handled by CROMA. A theoretical analysis and extensive simulations show that CROMA can reach very high throughputs.