Authors: Liang Song, Dimitrios Hatzinakos
Addresses: Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada. ' Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
Abstract: We propose the concept of cognitive networking for large-scale wireless systems, which opportunistically utilises network resources including both spectrum bandwidth and radio availability. Both types of resources cannot be predetermined in large-scale wireless systems, due to various reasons such as interferences and dynamic traffic load. The proposed technology not only establishes dynamic wireless networks, but also provides for reliable network quality of services (QoS). The supporting network architecture, embedded wireless interconnect (EWI), is proposed to implement the cognitive networking concept and supply an effective application-programming interface for large-scale data management systems. Two example applications are presented, including wireless mesh networks for broadband wireless internet access and wireless sensor networks for target tracking. Major advantages of the technology are further discussed. We suggest that the performance of the proposed system would improve with larger network scale and the implementation complexity could be independent of the network scale.
Keywords: cognitive networking; large-scale wireless networks; network architecture; data management; embedded wireless interconnect; EWI; spectrum bandwidth; radio availability; quality of service; QoS; wireless mesh networks; broadband internet access; wireless sensor networks; WSNs; target tracking.
International Journal of Communication Networks and Distributed Systems, 2009 Vol.2 No.4, pp.452 - 475
Published online: 19 Jun 2009 *Full-text access for editors Access for subscribers Purchase this article Comment on this article