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Wireless sensors networks (WSN's) have a lot of ability for spreading in the areas where wired networks can't operate correctly and old versions of wireless networks aren't useful. WSN's consist of many sensors that place in an unavailable area. The method of routing to transform information from sensor nodes to the Base station is very important and one of the main needs of WSN is the best method...
Epidemic Routing offers a reliable approach to transmitting data in opportunistic networks, which has developed a few of variations so far. However, these algorithms have some redundant control overhead in sensing neighbor nodes and exchanging data packets. To address the issue, we propose a high-efficiency low-delay routing algorithm based on exchange of increments in packet indexes. Our algorithm...
Data aggregation is an important issue in wireless sensor networks which gathers and routes information through a multi-hop network and processes data at intermediate nodes. This paper considers how to construct data aggregation tree in wireless sensor network where there are several source nodes and a single sink. Ant Colony Optimization algorithm is an effective distributed approach. It has been...
In this paper, we propose an improved routing algorithm to prolong network lifetime for wireless sensor networks (WSNs). Moreover, to prolong the lifetime of the first node death (FND) in networks, we combine both load balancing shortest hop routing tree and turn off redundant node schemes (SHORTORN), and the weight and energy-aware, called energy-aware weight-based SHORTORN (EWSHORTORN). The proposed...
A principal factor in sensor network design is energy efficiency. In this work, we propose to extend the lifetime of sensor networks using appropriate choice of sensor node distribution. The key idea of our scheme is to deploy more nodes in areas of extensive energy usage. Using this scheme of sensor node distribution, we use probabilistic angular routing to route data packets from the sensor nodes...
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