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01-12-2019 | Research | Issue 1/2019 Open Access

EURASIP Journal on Wireless Communications and Networking 1/2019

Reinforcement learning-based dynamic band and channel selection in cognitive radio ad-hoc networks

Journal:
EURASIP Journal on Wireless Communications and Networking > Issue 1/2019
Authors:
Sung-Jeen Jang, Chul-Hee Han, Kwang-Eog Lee, Sang-Jo Yoo

Abstract

In cognitive radio (CR) ad-hoc network, the characteristics of the frequency resources that vary with the time and geographical location need to be considered in order to efficiently use them. Environmental statistics, such as an available transmission opportunity and data rate for each channel, and the system requirements, specifically the desired data rate, can also change with the time and location. In multi-band operation, the primary time activity characteristics and the usable frequency bandwidth are different for each band. In this paper, we propose a Q-learning-based dynamic optimal band and channel selection by considering the surrounding wireless environments and system demands in order to maximize the available transmission time and capacity at the given time and geographic area. Through experiments, we can confirm that the system dynamically chooses a band and channel suitable for the required data rate and operates properly according to the desired system performance.

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