Wireless sensor networks are the grouping of tiny sensor nodes, which collects the information by sensing activeness from the surroundings similar lands, forests, hills, sea. In wireless sensor networks, using mobile sinks mobility rather than static sink for data collection is the new trend in present years. Current researches are focusing on moving patterns of the mobile sink to achieve optim...

Ab = heat-sink-base surface area Ac = cross-sectional area of the fin Cp = specific heat of the air EI = Elenbaas number g = gravity H = fin height h = heat transfer coefficient around fin ka = thermal conductivity of the air kh = thermal conductivity of the heat sink L = fin length N = total number of fins of the heat sink P = plate-air parameter Pe = perimeter of the fin pf = fin pitch qb = h...

The terrestrial biosphere is currently thought to be a significant sink for atmospheric carbon (C). However, the future course of this sink under rising [CO2] and temperature is uncertain. Some contrasting possibilities that have been suggested are: that the sink is currently increasing through CO2 fertilization of plant growth but will decline over the next few decades because of CO2 saturatio...

Subject of this thesis is the theory of unique sink orientations of cubes. Such orientations are suitable to model problems from different areas of combinatorial optimization. In particular, unique sink orientations are closely related to the running time of the simplex algorithm. In the following, we try to answer three main questions: How can optimization problems be translated into the frame...

By: Resnik, Jack

Article history: Received 25 May 2015 Received in revised form 27 June 2015 Accepted 2 July 2015 Available online xxxx

By: Resnik, Jack

Multi-sink wireless sensor networks are recently gaining interest. They have been introduced to overcome the scalability problem arising in single sink network architectures: by increasing the number of sensor nodes, the information collected at a single sink might become excessive with respect to its communication capacity. In this paper, the topologies formed by means of the IEEE 802.15.4 ass...

Sink relocation is essential in wireless sensor network since relocating sink can balance the traffic load in the midst of multiple nodes and thereby decrease the miss rate of real-time packets. The main constraint in wireless sensor networks is limited energy supply at the sensor nodes so it is important to deploy the sink at a position with respect to the area of interest; a specific area tha...

In many researches on load balancing in MultiSink WSNs, sensors usually choose the nearest sink as destination for sending data. If all sensors in this area all follow the nearest-sink strategy, sensors around nearest sink called hotspot will exhaust energy early and this sink is isolated from network. In this paper, we propose a load balancing scheme for multi-sink WSNs. A mobile anchor with d...