NDLI: VoIP Communications in Wireless Ad-hoc Network with Gateways

Content Provider	IEEE Xplore Digital Library
Author	Fasolo, Elena Maguolo, Federico Zanella, Andrea Zorzi, Michele Ruffino, Simone Stupar, Patrik
Copyright Year	2007
Description	Author affiliation: University of Padova - Department of Information Engineering, Via Gradenigo 6/B, 35131 Padova. andrea.zanella@dei.unipd.it (Zanella, Andrea) \|\| Telecom Italia - TILAB. patrik.stupar@telecomitalia.it (Stupar, Patrik) \|\| University of Padova - Department of Information Engineering, Via Gradenigo 6/B, 35131 Padova. fasoloel@dei.unipd.it (Fasolo, Elena) \|\| University of Padova - Department of Information Engineering, Via Gradenigo 6/B, 35131 Padova. maguolof@dei.unipd.it (Maguolo, Federico) \|\| Telecom Italia - TILAB. simone.ruffino@telecomitalia.it (Ruffino, Simone) \|\| University of Padova - Department of Information Engineering, Via Gradenigo 6/B, 35131 Padova (Zorzi, Michele)
Abstract	In this paper, we investigate some of the issues that arise when mobile nodes engage voice connections with remote peers by using a wireless ad hoc network (MANET-cell) to access the distribution core network. We focus on a specific network scenario where all communications are directed to a special node, called gateway, which in turn bridges traffic to and from the core network. We first derive a mathematical expression to estimate the maximum number of sustainable voice sessions in a single-hop cell, with multi-rate terminals. Then, we assess the accuracy of the formula through ns2 simulations, which allow us to determine the voice capacity of the system also in presence of hidden terminals. Hence, we analyze the impact of multi-hop paths on the voice capacity of the system. From this analysis, we propose a new cost metric that we apply to a modified version of the OLSR routing algorithm, named HOLSR. This algorithm has proved to be able to preserve stability in some scenarios that were unstable under other routing algorithms.
File Size	1535685
File Format	PDF
ISBN	9781424415205
ISSN	15301346
DOI	10.1109/ISCC.2007.4381646
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Ad hoc networks Peer to peer computing Mobile communication Routing Mobile ad hoc networks Bridges Telecommunication traffic Traffic control Speech analysis
Content Type	Text
Resource Type	Article
Subject	Signal Processing Mathematics Computer Networks and Communications Computer Science Applications Software

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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
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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