Paper Info
Title
HWMP+: An Improved Traffic Load Sheme for Wireless Mesh Networks
Abstract
Wireless Mesh Networks (WMNs) are broadly used recently, due to its flexibility, reliability and robust services. IEEE 802.11s defines Hybrid Wireless Mesh Protocol (HWMP) as the default routing protocol for WMNs and airtime link metric as the default path selection metric. Airtime metric can collect the channel information from both PHY and MAC layers to estimate average latency per packet transmission through a link, but it typically suffers from several shortcomings, such as ignoring the influence of traffic flow and inefficient usage of the shared wireless resources. In this paper, we propose a modified HWMP protocol with an enhanced airtime metric called as HWMP+, which can estimate the link quality in combination with traffic flow information and allocate the network resources in an efficient way. The proposed metric computation procedure has both historical and real-time perspectives of the link quality and is more sensitive to the link quality variations, especially in a dynamic topology. We also improve the routing scheme and optimally manage the shared channel resources according to the traffic flow information. Simulation results using Qualnet 5.0 show that, the proposed schemes can considerably improve the system performance, in terms of network throughput and average end-to-end delay.
Year
DOI
Venue
2012
10.1109/HPCC.2012.102
HPCC-ICESS
Keywords
Field
DocType
link quality,airtime metric,proposed metric computation procedure,default path selection metric,airtime link,traffic flow information,improved traffic load sheme,wireless mesh networks,modified hwmp protocol,enhanced airtime,channel information,link quality variation,routing protocols,routing protocol,radiation detectors,wireless communication,routing,wireless sensor networks,resource allocation
Traffic flow,Hybrid Wireless Mesh Protocol,Computer science,Computer network,QualNet,Resource allocation,Wireless mesh network,Throughput,Wireless sensor network,Routing protocol,Distributed computing
Conference
ISSN
Citations 
PageRank 
2576-3504
4
0.41
References 
Authors
7
2
Name
Order
Citations
PageRank
Lihua Yang140.41
Sang-Hwa Chung223448.13