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Publication Type : Journal Article
Publisher : 2017 International Conference on Computer Communication and Informatics,
Source : 2017 International Conference on Computer Communication and Informatics, ICCCI 2017, Institute of Electrical and Electronics Engineers Inc. (2017)
ISBN : 9781467388542
Keywords : Access control, Carrier communication, Carrier sense multiple access, Carrier sense multiple access with collision avoidances, Collision avoidance, Comparative performance, CONTI, CSMA/CA, Distributed coordination functions, IEEE 802.11 Standards, Medium access control, Medium access control(MAC), Performance analysis, Standards
Campus : Bengaluru
School : School of Engineering
Department : Electronics and Communication
Year : 2017
Abstract : This paper compares the performance analysis of a Medium Access Control (MAC) scheme named Distributed Coordination Function (DCF) with a much efficient scheme called Constant Time Contention (CONTI)by varying number of contending nodes, thus suggesting the better scheme with regard to parameters such as delay, throughput, collision rate and jitter. DCF, which is used as the MAC scheme for IEEE 802.11 standard, uses Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) protocol with carrier sense and collision avoidance mechanisms through random back-offs. Its major limitation is its collision rate increases with increase in number of nodes, and thereby in an increase in delay parameter. Other MAC schemes, which are proposed after DCF, resulted decrease in the collision rate but, they utilize variable number of time slots to resolve the contention problem. Unlike these schemes, CONTI considered both the issues by resolving the contention problem with less number of collisions in constant time with a decrease in delay.
Cite this Research Publication : Jayasree M. Oli, Boppa, S., Bandi, S., and Krothapalli, V., “Comparative Performance Evaluation for DCF and CONTI MAC Schemes”, 2017 International Conference on Computer Communication and Informatics, ICCCI 2017, 2017.