A Data Dissemination Policy by Using Human Mobility Patterns for Delay-Tolerant Networks

The mobility patterns of nodes is essential for the design of data dissemination in Delay-Tolerant network (DTN). This paper proposes a data dissemination policy by using human mobility model in DTN in which wireless devices are carried by humans, referred as HMP. HMP selects relay nodes rigidly and improves the efficiency of data forwarding by using the factor set, which is composed of Destination-Matching (DM), Arrival Time of Destination (ATD) and Network Hops (NH). And data dissemination efficiency under different individual activities radius is discussed. Furthermore, the HMP upper and lower bound of network cost are analyzed. Results of simulation show that HMP is well-balanced between network resource consumption and the end to end delay. Also, the network cost caused by useless data dissemination of multiple hops is reduced by about 5%-40% compared with other schemes.