Journal of Applied Sciences ›› 2017, Vol. 35 ›› Issue (3): 317-325.doi: 10.3969/j.issn.0255-8297.2017.03.005

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Self-Adaption MAC Protocol for M2M Network Based on Q-Learning

XU Chang, WANG Cong, LIU Ling-ya, LI Ning   

  1. Institute of Communications Engineering, PLA University of Science and Technology, Nanjing 210007, China
  • Received:2016-01-19 Revised:2016-11-19 Online:2017-05-30 Published:2017-05-30

Abstract:

An adaptive medium access control (MAC) protocol Q-learning hybrid MAC (QH-MAC) is proposed for data collection application in machine-to-machine (M2M) networks. The QH-MAC enhances hybrid group MAC (HG-MAC) with an adaptive Q-learning based mechanism, in which the central node dynamically adjusts the COP duration according to the network load. The adaptive learning mechanism improves flexibility and the adaptability of the MAC protocol. QH-MAC is compared with carrier sense multiple access with collision avoidance (CSMA/CA), time division multiple address (TDMA) and HG-MAC by optimized network engineering tool (OPNET) simulations. The results show that HG-MAC is better than the others in terms of data rate, energy efciency and channel utilization.

Key words: medium access control (MAC), energy efciency, Q-learning, machine-tomachine (M2M) network

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