A Survey on Mobile Peer-to-Peer Technology Almudena D´ ıaz, Pedro Merino Laura Panizo, and ´ Alvaro M. Recio Departamento de Lenguajes y Ciencias de la Computaci ´ on, University of M´ alaga Complejo Tecnol´ ogico, Campus Teatinos, 29071, M´ alaga, Spain {almudiaz, pedro, laurapanizo, amrecio}@lcc.uma.es Abstract. Centralized client-server networks are being transformed to distributed peer-to-peer networks. Lessons learned from fixed networks have been applied in cellular network. But the special requirements of mobile devices and networks necessitate the elaboration and the adoption of different solutions in order to ful- fill the expectations which arise with the use of mobile peer-to-peer technology. Many researchers are currently proposing and developing new P2P schemes for mobile environments. In this paper we present a survey of alternative network architectures, protocols and implementations proposed for mobile peer-to-peer networking. 1 Introduction Recent advances in mobile devices and wireless communications have enabled the de- velopment of mobile P2P applications for mobile phones. These new mobile P2P sys- tems seem promising in a new domain of applications based on physical location and context, together with the possibility of using a wide variety of wireless radio access technologies (figure 1). Voice + Data GSM/CDMA Mobile Multimedia HSDPA/HSUPA Wimax/ 3G LTE 2G 3G 4G Real Time BroadBand IP Centric Multimedia Systems Peer-to-Peer IMT-Advanced 2002/03 2005/09 Next Decade 64-144Kbps 384Kbps-7Mbps 50-100 Mbps Fig. 1. Wireless radio access technologies evolution