Paper Info
Title
Effects of physical channel separation on application flows in a multi-radio multi-hop wireless mesh network: An experimental study on BilMesh testbed
Abstract
In this paper, we introduce BilMesh, an indoor 802.11b/g mesh networking testbed we established, and we report about our performance experiments conducted on multi-hop topologies with single-radio and multi-radio relay nodes. We investigate and report the effects of using multi-radio, multi-channel relay nodes in the mesh networking infrastructure in terms of network and application layer performance metrics. We also study the effects of physical channel separation on achievable end-to-end goodput perceived by the applications in the multi-radio case by varying the channel separation between the radio interfaces of a multi-radio relay node. We have observed that the difference between TCP and UDP goodput performances together with the delay and jitter performance depends on the hop count. We also observed that assigning overlapping channels with a central frequency separation of 5-15MHz may render the CSMA mechanism used in 802.11 MAC ineffective and hence reduce the overall network performance. Finally, we provide some suggestions that can be considered while designing related protocols and algorithms to deal with the observed facts.
Year
DOI
Venue
2014
10.1016/j.jnca.2013.07.008
J. Network and Computer Applications
Keywords
DocType
Volume
performance experiment,central frequency separation,experimental study,multi-radio case,UDP goodput performance,jitter performance,overall network performance,BilMesh testbed,observed fact,channel separation,physical channel separation,application flow,multi-radio multi-hop wireless mesh,application layer performance metrics
Journal
39,
ISSN
Citations 
PageRank 
1084-8045
0
0.34
References 
Authors
10
3
Name
Order
Citations
PageRank
Alper Rifat Ulucinar191.46
Ibrahim Korpeoglu260641.66
Ezhan Karasan328641.74