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- Title
On a Distributed Cognitive MAC Protocol for IEEE 802.11s Wireless Mesh Networks.
- Authors
Ghaboosi, Kaveh; Latva-aho, Matti; Kohno, Ryuji
- Abstract
distributed frequency agile medium access control (MAC) extension to the IEEE 802.11s for the next generation wireless mesh networks is proposed. The introduced protocol enhancements are capable of concurrent deployment of existing frequency opportunities in order to coordinate simultaneous data transmissions. The root concept is mainly based on the deployment of well-known ISM frequency bands, where the legacy 802.11-based wireless equipments operate, as the common control channel in order to establish contemporaneous transmissions. We apply the aforementioned key concept to the IEEE 802.11s common channel framework to attain two important goals: To improve the channel utilization using the concept of cognitive radio, and to lower the access delay. Through extensive event-driven simulations, taking into account primary user appearance in non-ISM frequency bands, performance of the proposed MAC enhancement is evaluated showing its higher efficiency compared to the existing solutions, in addition to its better wireless medium management.
- Subjects
ACCESS control; PACKET radio transmission; IEEE 802.11 (Standard); WIRELESS LANs; RADIO frequency
- Publication
Wireless Personal Communications, 2011, Vol 58, Issue 3, p565
- ISSN
0929-6212
- Publication type
Article
- DOI
10.1007/s11277-010-0122-5