Design and realization of ad-hoc VoIP with embedded p-SIP server |
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| Authors: | Lin-huang Chang [Author Vitae] Chun-hui Sung [Author Vitae] [Author Vitae] Yen-wen Lin [Author Vitae] |
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| Affiliation: | a Department of Computer and Information Science, National Taichung University, No. 140, Min-Sheng Rd., Taichung 403, Taiwan
b Department of Information and Communication Eng., Chaoyang University of Technology, Taichung, Taiwan |
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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. |
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| Keywords: | ACK, acknowledgement AODV, ad-hoc on-demand distance vector routing AP, access point ARP, address resolution protocol CPU, central processing unit DHCP, dynamic host configuration protocol FLV, flash video IBSS, independent basic service set IEEE, Institute of Electrical and Electronics Engineers IETF, Internet Engineering Task Force ITU, Internet Telecommunication Union ITU-T, ITU-Telecommunication Standardization Sector MANET, mobile ad-hoc network MN, mobile node NIC, network interface card OLSR, optimized link state routing p-SIP, pseudo session initiation protocol QoS, quality of service RARP, reverse address resolution protocol RTP, real-time transport protocol SIP, session initiation protocol SLP, service location protocol SNR, signal-to-noise ratio TIA, Telecommunications Industry Association TCP, transmission control protocol UA, user agent UDP, user datagram protocol UPnP, universal plug and play VoIP, voice over internet protocol |
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