Premium
Distributed opportunistic spectrum sharing in cognitive radio networks
Author(s) -
Hawa Mohammed,
AlAmmouri Ahmad,
Alhiary Ala,
Alhamad Nidal
Publication year - 2016
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.3147
Subject(s) - cognitive radio , computer science , base station , throughput , computer network , interference (communication) , cognitive network , channel (broadcasting) , simple (philosophy) , spectrum management , telecommunications , wireless , epistemology , philosophy
Summary In cases where the licensed radio spectrum is underutilized, cognitive radio technology enables cognitive devices to sense and then dynamically access this scarce resource making the most out of it. In this work, we introduce a simple and intuitive, yet powerful and efficient, technique that allows opportunistic channel access in cognitive radio systems in a completely distributed fashion. Our proposed method achieves very high values of spectrum utilization and throughput. It also minimizes interference between cognitive base stations and the primary users licensed to use the spectrum. The algorithm responds quickly and efficiently to variations in the network parameters and also achieves a high degree of fairness between cognitive base stations. Copyright © 2016 John Wiley & Sons, Ltd.