@inbook {77,
	title = {Small World VoIP},
	booktitle = {Mobile Computing, Applications, and Services: Second International ICST Conference, MobiCASE 2010, Santa Clara, CA, USA, October 25-28, 2010, Revised Selected Papers},
	year = {2010},
	pages = {137{\textendash}155},
	publisher = {Springer Berlin Heidelberg},
	organization = {Springer Berlin Heidelberg},
	address = {Berlin, Heidelberg},
	abstract = {<p>We present the analysis and design of a Small World VoIP system (SW-VoIP) which is geared towards customers that are communicating with their Small World of social contacts. We use the term Small World to refer to the Peer-to-Peer (P2P) network of a client and his contacts both incoming and outbound. We reconstruct the small world of a user by collecting calling patterns over a configurable period of time. We enable user mobility by using a stepwise social identity to an IP address binding propagation model. We propose an efficient algorithm to locate users by electing popular users and leveraging the users closeness. We also introduce a self-stabilized load balancing mechanism to optimize the system performance under heavy network traffic. We evaluate our SW-VoIP system performance by simulating the user{\textquoteright}s lookup process using real-world telephone logs. Our experimental results show that our SW-VoIP system offers a better performance in optimizing the required routing path and reducing the average lookup delay when compared to traditional, non small-world P2P VoIP systems.</p>
},
	keywords = {closeness, electing, mobility, optimize, Peer-to-peer, popular, small world, VoIP},
	isbn = {978-3-642-29336-8},
	doi = {10.1007/978-3-642-29336-8_8},
	url = {http://dx.doi.org/10.1007/978-3-642-29336-8_8},
	author = {Yang, Xiaohui and Stavrou, Angelos and Ram Dantu and Wijesekera, Duminda},
	editor = {Gris, Martin and Yang, Guang}
}
