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A Cross-Layer Approach to Enhance the Call Setup Performance of SIP-Based VoIP over AODV MANET.

Alshamrani, M, Cruickshank, HS and Sun, Z (2014) A Cross-Layer Approach to Enhance the Call Setup Performance of SIP-Based VoIP over AODV MANET. In: Eighth International Conference on Next Generation Mobile Apps, Services and Technologies (NGMAST), 2014, 10-12 Sep 2014, Oxford, UK.

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Abstract

The implementation of SIP signaling over MANET is still a challenging issue, as many routing factors affect SIP performance. Node mobility and dynamic hop number changes between nodes are considered the main routing problems within MANET routing protocols. RFC 6076 proposed end-to-end performance metrics for SIP signaling to provide a standardized method of evaluating SIP performance over different platforms, however, no benchmarking values for these metrics have been proposed yet. In this paper, a cross-layer system designed to enhance the call setup performance of SIP-based VoIP over AODV-based MANET is proposed. The approach used is to employ the SIP performance metric to enhance the call setup time by adjusting the Time-To-Live (TTL) parameter and the Route Request (RREQ) message retries for the AODV route request messages to support the reach ability ratio of SIP INVITE and re-INVITE messages to reduce the call setup time of SIP-based VoIP. The study investigated the Session Request Delay performance metric of SIP signaling as part of the SIP over MANET simulation efforts. Both the call setup time and the number of SIP calls over random waypoint mobility models were enhanced by applying instantaneous modifications to the TTL parameter and RREQ retries, increasing the delivery ratio of route discovery messages to about 35-40% compared with the classic AODV routing protocol.

Item Type: Conference or Workshop Item (Conference Paper)
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Alshamrani, MUNSPECIFIEDUNSPECIFIED
Cruickshank, HSh.cruickshank@surrey.ac.ukUNSPECIFIED
Sun, Zz.sun@surrey.ac.ukUNSPECIFIED
Date : 2014
Identification Number : 10.1109/NGMAST.2014.14
Copyright Disclaimer : © 2014 IEEE
Uncontrolled Keywords : SIP; AOVD; Performance Metrics; OPNET
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:33
Last Modified : 25 Sep 2017 08:28
URI: http://epubs.surrey.ac.uk/id/eprint/839645

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