A Resourceâˆ’Aware Probabilistic Forwarding Protocol for Opportunistic Networks
Mohd Soperi Mohd Zahid, Qaisar Ayuby, Sulma Rashid, and Abdul Hanan Abdullah
Journal of Data Processing, Vol. 4, No. 3, 2014.
DOI: 
Link: 
Abstract:
Opportunistic network is a self-organizing network of resource-constraint mobile devices  such as smartphones, tablets and laptop. It  operates in a more challenging environment than   infrastructured network or even ad-hoc networks,  and thus requires different kind of routing  rotocol which adopts the store-carry-forward  radigm. Many routing protocols have been  roposed for it, however few of them has taken into consideration status of resources in making forwarding decision. Smartphone and other mobile  devices nowadays are offering wider range of  functionalities enabling users not only to make phone calls and sending short messages but also   more resource consumed activities such as surfing the internet, sensing, collecting and ransmitting data. In this paper, we enhance a probabilistic routing protocol called PRoPHET to check the remaining energy and buffer space of nodes coming  into contact before forwarding messages  to them. A mobile device which has met more frequently to the destination node may not be  selected to forward a message if its battery energy is insufficient or buffer space is full. The performance evaluations have shown that the resource awareness ability reduce the number of
transmitted and dropped messages and increase delivery ratio.