... and delay-tolerant networks, arecharacterized as opportunist ic because, like nodes in mobilead hoc networking infrastructure, the forwarding nodes aremobile and dynamic—they come and go in ... distribution, and reproduction in any medium, provided the original work is properly cited.Today, people predominately rely on the Internet and cellularnetwork, as well as the plain old telephone ... in the researchcommunity, it is s till in its infancy in terms of emergingcommunications architectures, algorithms, protocols, tools,modeling, and standards. As yet there has been “no killerapp”...