Development of a Cooperative Application for Sending SMS on WiFi Mobile Phones

Most of current user mobile devices incorporate a WiFi interface. Peer communications are based on Ad-hoc network configuration, but the main handicap is the radio coverage. The success in deploying services and applications based on this concept needs the development of relay protocols and applications that allows intermediate users the reception and forwarding of information to destination users. The user may take the maximum benefit from the technology acquired inside the mobile phone for instance, since it is possible extend the radio coverage by several hops, and enjoy similar mobile´s operator services free of charge. In this work we present the development of a cooperative or relay protocol integrated on a Java application to send SMS among user mobile phones through its WIFI interface.