Design and realization of ad-hoc VoIP with embedded p-SIP server

Authors:
Lin-huang Chang;Chun-hui Sung;Shih-yi Chiu;Yen-wen Lin
Affiliations:
Department of Computer and Information Science, National Taichung University, No. 140, Min-Sheng Rd., Taichung 403, Taiwan;Department of Information and Communication Eng., Chaoyang University of Technology, Taichung, Taiwan;Department of Information and Communication Eng., Chaoyang University of Technology, Taichung, Taiwan;Department of Computer and Information Science, National Taichung University, No. 140, Min-Sheng Rd., Taichung 403, Taiwan
Venue:
Journal of Systems and Software
Year:
2010

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Abstract

In this paper we design and implement the pseudo session initiation protocol (p-SIP) server embedded in each mobile node to provide the ad-hoc voice over Internet protocol (VoIP) services. The implemented p-SIP server, being compatible with common VoIP user agents, integrates the standard SIP protocol with SIP presence to handle SIP signaling and discovery mechanism in the ad-hoc VoIP networks. The ad-hoc VoIP signaling and voice traffic performances are analyzed using E-model R rating value for up to six hops in the implemented test-bed. We also conduct the interference experiments to imitate the practical ad-hoc VoIP environment. The analyzed results demonstrate the realization of ad-hoc VoIP services by using p-SIP server.