Preprint Article Version 1 This version is not peer-reviewed

Fairness Oriented Neighbor-Channel-Aware MAC Protocol for Airborne Sensor Networks

Version 1 : Received: 7 March 2017 / Approved: 7 March 2017 / Online: 7 March 2017 (18:06:38 CET)

A peer-reviewed article of this Preprint also exists.

Gao, X.; Yan, J.; Lu, J. A Fairness Oriented Neighbor-Channel-Aware MAC Protocol for Airborne Sensor Networks. Sensors 2017, 17, 1130. Gao, X.; Yan, J.; Lu, J. A Fairness Oriented Neighbor-Channel-Aware MAC Protocol for Airborne Sensor Networks. Sensors 2017, 17, 1130.

Journal reference: Sensors 2017, 17, 1130
DOI: 10.3390/s17051130

Abstract

In airborne sensor networks (ASNs), the media access control (MAC) protocol is facing with serious unfairness problem due to the traditional protection mechanism of air-to-air communications among aircrafts. Actually by using the binary exponential back-off algorithm at high traffic loads to minimize collisions among users, the latest successful node can always benefit from this kind of MAC to obtain channel resources. Moreover, when taking the existence of the hidden nodes in ASNs into account, the inaccurate traffic load information will further aggravate the system’s unfairness. In this paper, a neighbor-channel-aware (NCA) protocol is proposed to improve the fairness of MAC protocol in ASNs. In the proposal, the NCA frame is firstly added and exchanged between neighbor nodes periodically, which helps to resolve the inaccurate traffic load information, so as to avoid reducing the probability of successful message transmission. Then a traffic-loading based back-off algorithm is involved to make the neighbor nodes cooperatively adjust the inter-frame space (IFS) interval to further reduce the unfairness. The simulation results show that, the proposed MAC protocol can guarantee the satisfied fairness, simultaneously avoiding heavy network overloads to protect key messages’ successful transmissions in ASNs.

Subject Areas

airborne sensor networks; media access control; fairness; neighbor-channel-aware; back-off

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