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Since the operations of sensors in wireless sensor networks (WSNs) mainly rely on battery energy, energy consumption becomes an important issue. In this paper, we use a global simulated annealing genetic algorithm (GSAGA) to create energy efficient clusters for routing in WSNs. The simulation results show that the proposed GSAGA algorithm has higher efficiency and can achieve better network lifetime...
Wireless sensor networks are often deployed in diverse application specific contexts and one unifying view is to treat them essentially as distributed databases. The simplest mechanism to obtain information from this kind of database is to flood queries for named data within the network and obtain the relevant responses from sources. However, if the queries are issued for replicated data, the simple...
Research in wireless sensor networks often involves simulation systems as a large number of sensor nodes always are unavailable so far, and the operation of them is expensive as well. Unfortunately, the widely used simulators do not scale for sensor networks with 2000 nodes or less. In this paper, we propose a scalable simulation system VWSN (virtual wireless sensor network), to meet the needs of...
False data injection attacks not only cause user to receive incorrect reports so that make wrong decisions, but also drain out the significant sensor network energy resources. Previous filtering schemes mainly relying on pairwise key based schemes for endorsing the report. In wireless sensor networks, sharing pairwise key with other sensor nodes may be vulnerable as an intermediate node can be compromised...
This paper takes advantages of the symmetrical key and asymmetrical key technologies, and proposes a key distribution scheme based on public key cryptography. The scheme does not need to pre-distribute pair-wise keys. Pair-wise key is established between two nodes after deployment according to a specific routing algorithm. The scheme can guarantee there is a direct pair-wise key between two nodes...
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