Possible Energy Consumption of Messages in an Opportunistic Network

Abstract

In disaster-tolerant (DTN) and vehicle-to-vehicle (V2V) networks, each node communicates with other nodes in infrastructure-less networks using wireless networks. Here, a node has to wait for opportunity that the node can communicate with another node. Even if a message is successfully forwarded to a neighboring node, the node might be unable to forward the message to any node. Hence, each node has to retransmit a message in more times. In our previous studies, the possible energy consumption (PEC) of a message stored in a node is proposed, which shows how much energy the node is expected to consume to retransmit the message. The PEC of a message is defined to depend on the delivery ratio to the destination node. In this paper, we newly propose an algorithm to retransmit messages where the interval of retransmissions of each message is decided based on the PEC. In the evaluation, we evaluate the retransmission algorithm in terns of number of retransmissions and delivery time.