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Wireless Sensor Network (WSN) is a group of spatially distributed sensor nodes and is self organized and autonomous in nature. They are connected by wireless links. Routing in wireless sensor network is quite different from traditional wireless network, due to limitations of wireless sensor network. To overcome some of the limitations, UDP is being used for connection establishment, compromising the...
Wireless sensor networks for existing energy consumption of each node in the uneven defect, combined with PEGASIS protocol, the first choice from the cluster, cluster formation, cluster routing and other aspects of LEACH protocol has been improved. Through theoretical analysis and simulation experiments to verify the performance of the protocol, and compared with the LEACH protocol. The results show...
In a resource constrained wireless sensor network (WSN), communication tasks can be expensive in terms of power consumption. Thus, when good communication is required, a mechanism that can maximize the chances of a successful transmission of information via wireless network is very desirable. The Opportunistic Routing (OR) protocol has been proposed as an alternative and efficient method for exploiting...
On the basis of analyzing, comparing the routing protocol and learning from the advanced thinking, the author proposes the algorithm of wireless sensor network routing based on gradient and the residual energy ant algorithm. Using the character that ant algorithm is simple and easy to realize, works in the part, and it integrates link quality into pheromone and supports many links to design the wireless...
Wireless Sensor Networks (WSNs) use tiny, inexpensive sensor nodes with several distinguishing characteristics: they have very low processing power and radio ranges, permit very low energy consumption and perform limited and specific monitoring and sensing functions. However, its security becomes an issue because in WSNs, there is virtual communication by passing the data through sensor via internet...
As sensor nodes are typically powered by non-renewable batteries, energy efficiency is a critical factor in wireless sensor networks (WSNs). And prolonging the lifetime for nodes and the total network is a critical issue. In this paper, a combination weight energy balance clustering and routing algorithm (CW-EBCR) is proposed. This algorithm takes into consideration the following elements: the node...
Wireless sensor networks (WSNs) require energy- efficient protocols to improve the network lifetime. In this work, we adopt a cross-layer strategy that considers routing and MAC layers jointly. At the routing layer, we propose balancing the traffic through the WSN. We show that sending the traffic generated by each sensor node through multiple paths instead of using a single path allows significant...
Although several analytical models have been proposed for wireless sensor networks (WSNs) with different capabilities, very few of them consider the effect of general service distribution as well as design constraints on network performance. This paper presents a new analytical model to compute message latency in a WSN with loop-free Bellman Ford routing strategy. The model considers limited buffer...
DSR protocol, the on-demand routing protocol used commonly in ad hoc, is suited for the situation of low mobility and few data. DSR becomes the first choice of the designers of WSN depending on the characters of it. In order to satisfy the requirement of low energy, the paper proposes a new routing protocol named energy-related DSR. First, DSR protocol is introduced in brief, and then a way of realizing...
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