Description: WSNs being energy constrained systems, one major problem is to employ the sensor nodes in such a manner so as to ensure maximum coverage and connectivity with minimal or optimal number of nodes and furthermore elongate network lifetime with maximum energy utilization.
The problem addressed has been tackled for 1-D linear array and further extended to 2-Dimensions as stated in the next slides.
-WSNs being energy constrained systems, one major problem is to employ the sensor nodes in such a manner so as to ensure maximum coverage and connectivity with minimal or optimal number of nodes and furthermore elongate network lifetime with maximum energy utilization.
The problem addressed has been tackled for 1-D linear array and further extended to 2-Dimensions as stated in the next slides.
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Size: 108544 |
Author:suresh |
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Description: Femtocells are a promising solution for the provision
of high indoor coverage and capacity. Furthermore, OFDMAbased
femtocells have proven to be highly versatile when dealing
with cross-layer co-channel interference thanks to the allocation
of frequency subchannels. However, concerns still exist related
to the impact of the different access methods to femtocells in
an overlayed network. Femtocells based on a Closed Subscribers
Group, where only device owners are allowed connectivity introduce
severe interference to macrocell users. Platform: |
Size: 250880 |
Author:alaa |
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Description: This an algorithm that finds the optimal coverage of wireless sensor networks and maintains connectivity between sensor nodes. However, it did not find the minimum number of active sensor nodes.-This is an algorithm that finds the optimal coverage of wireless sensor networks and maintains connectivity between sensor nodes. However, it did not find the minimum number of active sensor nodes. Platform: |
Size: 101376 |
Author:Taha |
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Description: 针对随机部署的无线传感器节点，提出一种基于虚拟力的自组织覆盖算法。将排斥力、引力、边界约束力这 3 种虚拟力作用于网
络中的每个节点，使聚集在一起的节点分散开，引入节点间距离的阈值、边界节点与边界距离的阈值实现对感兴趣区域的最大覆盖。实验 结果表明，该算法在保证连通性的基础上有效扩大了覆盖区域，具有较强实用性。 -This paper presents a self-organization coverage algorithm based on virtual force aiming at the Wireless Sensor Network(WSN) nodes which are randomly deployed. It utilizes three kinds of virtual forces including repulsive force, gravity and border constraint force apply to each
network node to separate the aggregate nodes, introduces the threshold among nodes and the threshold between node and border to realize maximize
coverage of the interested area. Experiental results show that this algoithm can validate coverage area effectively on the base of ensuring connectivity, and it has well utility.
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Size: 98304 |
Author:石头 |
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Description: In this paper, we address a new unexplored problem
- what are the optimal patterns to achieve connected coverage in
wireless networks with directional antennas. As their name implies,
directional antennas can focus their transmission energy in
a certain direction. This feature leads to lower cross-interference
and larger communication distance. It has been shown that with
proper scheduling mechanisms, directional antennas may substantially
improve networking performance in wireless networks.
In this paper, we propose a set of optimal patterns to achieve
full coverage and global connectivity under two different antenna
models, i.e., the sector model and the knob model. We also
introduce with detailed analysis several fundamental theorems
and conjectures. Finally, we examine a more realistic sensor
model, where sensing range and communication range may both
vary randomly. Results show that our designed patterns work
well even in unstable and fickle physical environment. Platform: |
Size: 1462272 |
Author:fahim68 |
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Description: Mobile wireless sensor networks (MWSNs) have recently launched a growing popular class of WSN in which mobility plays a key
role in the execution of the application. In recent years, mobility has become an important area of research for the WSN community. The
increasing capabilities and the decreasing costs of mobile sensors make mobile sensor networks possible and practical. Although WSN deployments
were never envisioned to be fully static, mobility was initially regarded as having several challenges that needed to be overcome,
including connectivity, coverage, and energy consumption, among others.However, recent studies have been showing mobility in a more
favorable light. In this article, an overview of proposals that evaluate mobile communication in WSNs is presented. Platform: |
Size: 195584 |
Author:Fatma |
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Description: 用matalb仿真来判断无线传感器网络中的各个节点是否连通。其中包含判断连通率的函数和覆盖率的算法。可以计算最小发射功率。-Matalb simulation to determine whether the use of wireless sensor network each node connectivity. Which contains a function to determine connectivity rate and coverage algorithms. You can calculate the minimum transmission power. Platform: |
Size: 1024 |
Author:Muia蛋蛋 |
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