The impact of medium access delays on the packet service-time in saturated ad hoc networks

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Issue Date
2010-10-05
Authors
Kadiyala, Murali Krishna
Paradi, Santosh
Pendse, Ravi
Advisor
Citation

Kadiyala, M.K.; Paradi, S.; Pendse, R. 2010. "The impact of Medium Access Delays on the packet service-time in saturated ad hoc networks," Local Computer Networks (LCN), 2010 IEEE 35th Conference on , vol., no., pp.741-744, 10-14 Oct. 2010 doi: 10.1109/LCN.2010.5735803

Abstract

Medium Access Control (MAC) delays significantly increase the packet service-time in saturated networks. As the number of contending nodes increases, the occurrence of collisions and cross-transmissions (CTs) also increases, resulting in high packet service-time. In this paper, we model packet servicetime in IEEE 802.11 Distributed Coordination Function (DCF) networks in terms of medium access delays, and illustrate the impact of collisions and cross-transmissions on the neighbor's transmissions. Our simulation results indicate that collisions and cross-transmissions induce high delays in the packet-transmission process severely degrading the performance of the network. We conclude with a discussion on the effect of packet service-time on the real-time applications.

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