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Energy efficiency has become a main challenge in Wireless Sensor Networks (WSNs) and their applications. Localization is one of the indispensable stages in WSN. Localization generally refers to the process of locating the position of one or more node(s) in a network. This paper develops and evaluates an improved energy aware localization algorithm in WSNs. Clustering techniques have been intensively...
Energy balance is a critical issue in wireless sensor networks. Several mixed data transmission (MDT) schemes have been proposed to achieve energy balance. However, most existing works are lack of theoretical study, especially understanding the relationship between network-wide energy balancing and lifetime optimization. In this paper, we conduct comprehensive theoretical analysis to the two-level...
Energy is one of the most important resources in wireless sensor networks (WSN). Energy directly translates to lifetime which is an important ingredient of performance control in WSNs. We use an idealized mathematical model to study the impact of routing on energy consumption. We find explicit bounds on the minimal and maximal energy routings will consume, and use them to bound the lifetime of the...
In this paper, we investigate the energy balanced data collection problem in WSNs, aiming to balance the energy consumption among all the sensor nodes in the data propagation process. Energy balanced data collection can potentially save energy consumption and prolong the network lifetime, and hence it has many practical implications for WSN design and deployment. The traditional hop-by-hop transmission...
For mobile sensor networks, part or all of the nodes are with moving capabilities. It's essential to find energy-efficient routing path for nodes to communicate with each other. Broadcast and multicast are important issues in mobile sensor networks and much work has been done in finding energy-efficient routing methods for the broadcasting and multicasting process. In previous methods, the possibility...
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