V-Chord: An efficient file sharing on LTE/GSM Network

Content sharing in cellular infrastructure including 3G, 4G or LTE through mobile phones or PDAs is now at a premature stage. The users need to pay a fee to the service providers per content access. A number of schemes, assisted by centralized web servers, try to reduce the cost of data usage through Bluetooth or WiFi mechanisms. However, a user still has to pay a fee in order to find the location of the host server and then to download the contents. The cost could be reduced by leveraging P2P file sharing through Vicinity Chord ring (V-Chord) proposed in this paper. V-Chord is a Chord [13] like data structure based on the locations of the mobile users. The analysis of V-Chord establishes that the proposed scheme lead to a reduced cost for data usage compared to other existing schemes. An implementation of a P2P file sharing system over mobile phones, based on V-Chord, has been designed and tested using J2ME midlets.