Peer-to-Peer Computing for Mobile Networks

1 Wireless data communications In the 19th century, the advent of the telegraph and telephone forever changed how messages were transmitted around the world. Data volume—medical data, personal multimedia, surveillance for urban areas, web data—is exploding.

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“This world! This small world the great!” Odysseus Elytis 1. 1 Wireless data communications In the 19th century, the advent of the telegraph and telephone forever changed how messages were transmitted around the world. Radio, television, c- puters, and the Internet further revolutionized communication in the 20th 1 century. Equally important, the e?ect of Moore’s law is transforming a niche technology into a ubiquitous one, expanding the innovations in an increasingly networked world. Wireless devices are becoming smaller, easier to use and p- vasive. In e?ect, people are depending more and more on wireless information wherever they are. At the dawn of the 21st century, pervasive computing weaves itself into our lives [352, 6, 4, 29, 42, 48, 23, 50, 47, 38, 19, 22, 18]. Today people access local and international news, tra?c or weather - ports, sports, maps, guide books, music, video ?les and games via the Int- net [27, 52]. Data volume—medical data, personal multimedia, surveillance for urban areas, web data—is exploding. Similarly, the importance of meta-data, i. e. , semantic annotations of what this data means, is also rapidly growing. Analysts expect the growth in mobile location-based services in the European market to reach 622 million euros in 2010, estimating that 18 million users in Europe will subscribe to location-based billing plans by then.