An Analysis of the Performance of MAC Buffer Size for Real Time Service Support in Dense MANET Scenarios

Peter Vargovcik and Enda Fallon (Athlone Institute of Technology, Ireland)

A Mobile Ad-hoc Network or (MANET) which uses movable wireless devices without infrastructure requirements is the most dynamic communication network in use today. A MANET has a group of mobile nodes or stations connected in an auto-configured and self-healing wireless network. The stations attached to a MANET change rapidly and each act as a router by forwarding packets to other stations in the MANET. The characteristics of the supported service (real-time or bulk download) places requirements on the underlining network in terms of delay and throughput. This paper presents a performance comparison between real time and static download services based on QoS metrics (Media Access Delay, Queue Size and Delay). The performance comparison which is compiled using the OpNet simulator illustrates the importance of optional buffer configuration. The connection oriented design of MANET media access control results in significant increase of the delay regardless of the connectionless nature of the utilizing application. Results presented illustrate that suboptimal buffer configuration can render a real time streaming service unusable.

Journal: International Journal of Simulation- Systems, Science and Technology- IJSSST V22

Published: May 9, 2021

DOI: 10.5013/IJSSST.a.22.01.11