NDLI: HWMP+: An Improved Traffic Load Sheme for Wireless Mesh Networks

Content Provider	IEEE Xplore Digital Library
Author	Lihua Yang Sang-Hwa Chung
Copyright Year	2012
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.
Starting Page	722
Ending Page	727
File Size	397404
Page Count	6
File Format	PDF
ISBN	9781467321648
DOI	10.1109/HPCC.2012.102
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-25
Publisher Place	United Kingdom
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication HWMP Wireless sensor networks Radiation detectors Telecommunication traffic Routing Wireless Mesh Networks Traffic Load Airtime Metric
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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