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To ensure sustainable operations of wireless sensor networks, environmental energy harvesting has been well recognized as one promising solution for long-term applications. Unlike in battery-powered sensor networks, we are targeting a duty-cycle adjustment to optimize the network performance, e.g., delay minimization, with full harvested energy utilization. In this paper, we introduce a set of duty-cycle...
An optimized source authentication scheme for multicast based on merkle tree and TESLA was presented. Message group including independent component was constructed by merkle tree algorithm, the validity of message group's digest value was ensured by delayed disclosure of keys of TESLA algorithm, and furthermore, real-time source authentication with zero-time delay was implemented through improving...
For noncooperative networks in which each node is a selfish agent, certain incentives must be given to intermediate nodes to let them forward the data for others. What makes the scenario worse is that, in a multihop noncooperative network, the end points can only observe whether or not the end-to-end transaction was successful or not, but not the individual actions of intermediate nodes. Thus, in...
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