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http://dx.doi.org/10.7840/kics.2013.38A.1.33

Carrier Sensing Multiple Access with Collision Resolution (CSMA/CR) Protocol for Next-Generation Wireless LAN  

Choi, Hyun-Ho (국립한경대학교 전기전자제어공학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.38A, no.1, 2013 , pp. 33-43 More about this Journal
Abstract
This paper proposes a distributed MAC protocol called Carrier Sensing Multiple Access with Collision Resolution (CSMA/CR) considering fully-connected single hop network environments for next-generation wireless LAN with high density of stations. The proposed CSMA/CR is compatible with the conventional MAC protocols by observing the operation of CSMA/CA and is able to detect a collision promptly without RTS/CTS exchange by applying the technique of CSMA/CD to wireless environments. Moreover, once a collision is detected, the dedicated resource is allocated to the next transmission and so the collision that may occur again is resolved. We investigate some implementation issues for the practicality of CSMA/CR and compare it with the typical distributed MAC protocols. The simulation results show that the proposed CSMA/CR has a low overhead as detecting a collision without the RTS/CTS exploitation and achieves always the best throughput regardless of the number of access stations, by using the reservation-based collision resolution technique.
Keywords
CSMA; collision avoidance; collision detection; collision resolution;
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Times Cited By KSCI : 2  (Citation Analysis)
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