Paper Info
Title
A fair MAC protocol for resource sharing in ad-hoc cognitive networks
Abstract
Cognitive Radio (CR) technology allows an opportunistic use of the licensed spectrum by the CR users, avoiding harmful interference to Primary Users (PUs). To perform their activity, secondary users (SUs) have particular features compared to the PUs; sensing is one of the principal. Specifically the CR users must detect the spectrum holes left by PUs by performing sensing. All the protocol stack need to be redesigned taking into account the specificity of the cognitive environment. In this paper a novel MAC protocol for cognitive radio wireless ad-hoc networks is presented and analysed. The introduced protocol is distributed, collision-free and guarantees a fair channel assignment, also taking into account the requests of Quality of Service (QoS) of the CR nodes. The performance of the protocol has been studied through statistical computations. In particular, a Markov chain has been introduced to study the global performance of the protocol. In addition a simulation tool has been developed to validate the mathematical model and to prove the fairness of the resource sharing mechanism. The results prove the protocol efficiency and the high fairness, measured with the help of the Jain's fairness index.
Year
DOI
Venue
2014
10.1007/s11235-013-9835-6
Telecommunications Systems
Keywords
Field
DocType
Cognitive radio,Ad-hoc network,Medium access control
Wireless,Computer science,Quality of service,Computer network,Fairness measure,Wireless ad hoc network,Shared resource,Protocol stack,Cognitive network,Cognitive radio
Journal
Volume
Issue
ISSN
56
2
1018-4864
Citations 
PageRank 
References 
2
0.36
16
Authors
2
Name
Order
Citations
PageRank
Carla Passiatore150.77
Pietro Camarda282251.74