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Acta Armamentarii ›› 2019, Vol. 40 ›› Issue (4): 820-828.doi: 10.3969/j.issn.1000-1093.2019.04.017

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A Novel Media Access Control Protocol for Multiple Priority Services in FANETs

LIU Weilun, ZHANG Hengyang, ZHENG Bo, GAO Weiting   

  1. (Information and Navigation College, Air Force Engineering University, Xi'an 710077, Shaanxi, China)
  • Received:2018-06-01 Revised:2018-06-01 Online:2019-06-10

Abstract: A media access control protocol for multiple priority services is proposed for the quality of ser- vice (QoS) demands of multiple priority services parallel transmission and low latency, high reliability of the high priority service in flying ad hoc networks (FANETs). According to the QoS demands for many types of services, the protocol adopts a multi-channel random access strategy for the highest priority traffic and the multi-channel busy/idle access strategy for other priority traffic, so the access authority for different priorities can be availably controlled by the residual life, threshold and channel occupancy rate in real time. A multi priority backoff mechanism based on channel busy/idle sensing is also used in this protocol so that the QoS guarantee can be provided for each priority. The protocol performance expressions and access thresholds are deduced by using queuing theory, Markov model, and discrete Laplace transformation. The simulated result shows that the protocol can effectively guarantee the QoS demand of low latency (<2 ms), high reliability (>99%) and stable system capacity(>10 Mbit/s) under heavy load, and its performance is better than the prioritized adaptive jitter based media access control protocol and the hybrid media access control protocol based on pre-allocation of transmission time slots and random immediate access. Key

Key words: flyingadhocnetwork, multiplepriorityservices, channeloccupancy, threshold, multipleaccesscontrolprotocol, adhocnetwork, backoff

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