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Energy consumption has always been a hot research topic in wireless sensor networks, in this paper, a novel energy-saving routing protocol based on two-layers routing mechanism is proposed, in which, the first layer adopts the remaining energy centroid algorithm to form clusters and elect the cluster heads, and the second layer adopts multi-hop transmission to guarantee that the cluster heads can...
Wireless sensor networks (WSNs) are a self-organized networks and they are formed by dynamic topologies. Due to the constantly changing topology in WSN, it is a challenging task to tackle energy utilization of sensor nodes and ensure the end-to-end path between nodes and the sink. The existing mechanisms are inefficient to ensure availability of routes, while consuming minimal power, when the change...
Planning of energy-efficient protocols is critical for wireless sensor networks (WSNs) because of the constraints on sensor node's energy. Therefore, the routing protocol should be able to achieve uniform power dissipation during transmission to the sink node. In this paper, we present a self-optimization scheme for WSN which is able to utilize and optimize the sensor nodes' resources, especially...
We use wireless networks in various field. However, a link of realistic wireless sensor networks (WSNs) can be unreliable. Therefore, data forwarding with efficiency and reliability is a core issue. For solving previous geographic routing protocols, we proposed Protocol considering Both side of Link-quality and Energy (PBLE), an efficient and optimal routing protocol that uses modified link-quality,...
Two extensively studied and analyzed factors related to Wireless Sensor Networks (WSNs) are optimization of power or energy consumption of node or network and efficient routing mechanism for data transfer between sensor nodes. These two aspects play a major role in the effectiveness and efficiency of the WSN being deployed. This paper, is a study of these aspects of WSN and the various mechanisms...
The use of Wireless Sensor Networks (WSN) is anticipated to bring lot of changes in data gathering, processing and dissemination for different environments and applications. Energy consumption is the most crucial design issue in WSN. In order to solve the issue and prolong the network lifetime, energy resources of each node in WSN need to be effectively managed. With respect to energy efficiency,...
In Wireless Sensor Network (WSN), one of the primary issues is energy conservation for extending network lifetime. Communication protocols for WSN help reduce the energy consumption via adopting sleep scheduling in the network. Random sleep scheduling is a desirable mechanism for its simplicity and steady duty cycle. However, the low duty cycle sleeping of nodes may destroy the connectivity of network,...
Energy consumption is a vital factor in the successful deployment of ad hoc sensor networks because sensor nodes are powered by on board battery which are extremely difficult to be recharged. In this article we have proposed a new routing technique based on the idea of random walk with the objective of saving energy. Our approach is inspired by an existing TDMA like routing protocol. We have given...
The task of routing data from a source to the sink is a critical issue in ad hoc and wireless sensor networks. In this paper, the use of fuzzy logic to perform role assignment during route establishment and maintenance is proposed. An intelligent role-based approach is presented and compared with similar existing routing protocols. Experiments show promising results for our proposal and its suitability...
Providing reliable and yet energy efficient routing protocols is of an utmost importance in Wireless Sensor Networks. Wireless Sensor Networks imply multi-hop data forwarding over unreliable and moving nodes. When selecting the appropriate routing paradigm, the main challenge is to find the right equilibrium between the quality of data delivery and the energy invested. Insufficient quality of data...
As a key design criterion for the routing protocols in wireless sensor network, energy consumption is an important factor which affects network lifetime. Some of the conventional routing schemes may not be optimal to maximize the network lifetime. In this paper, we propose a multipath routing algorithm (MRA-AHP) with flexible application relativity on the basis of Directed Diffusion. The algorithm...
Recent advancements in wireless communications enabled the development of small and cheap nodes capable of sensing, communication and computation. These nodes in a network co-ordinate to perform distributed sensing of environmental phenomenon in various fields such as health, military, home. Research on energy sensitive routing in static WSN has led to the development of many routing protocols that...
In the area of wireless sensor networks, achieving minimum energy consumption is a very important research issue. At present, a number of energy efficient protocols have been proposed, mostly based on a layered design approach, which means that they are focused on designing optimal strategies for single layer only. In this paper, we present a cross-layer cluster scheme by optimizing the routing and...
Energy efficiency has been known as the most significant problem in all facets of the wireless sensor network operations. For large scale WSN deployed in the battlefield it is necessary to consider energy depletion imbalance, extra overhead and delay brought by the increase of the hop number when designing energy-aware routing scheme. This paper presents a novel routing scheme (Cooperative Robust...
In the development of various large-scale sensor systems, a particularly challenging problem is how to dynamically organize the sensor nodes into a wireless communication network and route sensed information from the field sensors to a remote base station. This work presents a new energy-efficient dynamic clustering technique for large-scale sensor networks. By monitoring the received signal about...
In this paper, we present a novel energy efficient routing protocol for wireless sensor networks in which the sensor nodes as well as the base station are mobile. The protocol is hierarchical and cluster based from network structure perspective. Each cluster contains one cluster head node and two deputy cluster head nodes. The re-clustering time and energy has been minimized by introducing the concept...
Data aggregation is an main method to conserve energy in wireless sensor network (WSN). Prior work on data aggregation protocols are generally based on static routing schemes, such as tree-based, cluster-based or chain-based routing schemes. Although they can save energy to some extent, in dynamic scenarios where the source nodes are changing frequently, they will not only incur high overhead to continuously...
Since data gathering is the primary functionality of sensor networks, it is crucial to provide an appropriate method for information collecting in the face of limited energy challenge. While conventional protocols are inclined to take decreasing the end-to-end delay and minimizing the total energy consumption into consideration. In this paper, we discuss an existing Fast Low-cost Shortest Path Tree...
A Wireless Sensor Network (WSN) is a network of battery-powered nodes in which data is routed from sources to sinks. Each node consumes energy in order to transmit or receive on its radio. Consequently, an intermediate node that is used by multiple sources will quickly expire. If some sources are unable to route without the presence of that node, any remaining energy they have is wasted. We present...
Based on deeply studying the tree routing in ZigBee, the improvement tree routing algorithm (NTR) by using the neighbor table had been proposed in this paper: finding the common neighbor nodes between the source nodes and destination nodes; establishing a strategy on selecting neighbor nodes. The NTR can enable the original tree routing more flexible, save the address space and improve the routing...
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