Show Me Your Friends and I\u27ll Tell You What You Like

Pocket Switched Networks (PSN), where humans carry short range communicating devices such as PDAs, lap-tops, or smart phones, have attracted the attention of many resear- chers in recent years. These networks, whose main feature is the social-guided movements of users/devices, are consid- ered to be a key technology to provide innovative services to the users without the need of any xed infrastructure. Even though many forwarding protocols (statefull social- aware{e.g. PROPHET, BUBBLE{and stateless ones{e.g. Epidemic, BinarySW) have been proposed, there\u27s still a need for ecient killer application, possibly both stateless and social-aware, that would transform the PSNs in a useful living reality. Here we discuss on the advantages/disadvantages/scala- bility of already existing stateful social-aware and simple stateless forwarding protocols for PSNs and introduce a sta- teless interest-based forwarding mechanism that combines the advantages of both forwarding approaches.No abstract availabl