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Considering the necessity of reliability providing and lifetime prolonging in wireless sensor networks as Quality of Service requirements, it is necessary to present a new routing algorithm that can best provide these requirements in network layer. Multi-path is favorite alternative for sensor networks, as it provides an easy mechanism to distribute traffic and balance network's load, as well as considerate...
In this paper, we propose a minimum transmission energy consumption (MTEC) routing protocol that reduces energy consumption and prolongs network lifetime in user-centric wireless networks. MTEC is proposed for selecting the minimum transmission energy consumption path for data transmission based on the proportion of successful data transmissions, the number of channel events, the remaining node energy...
Wireless Sensor Networks (WSN) is a powerful technology that can be used in many application domains varying from geology surveillance to medicine healthcare. However, current protocols for WSN are not suitable to handle the WSN applications with high mobility of sensor nodes. In this paper, we present a protocol named CIVIC designed for Vehicular Ad-hoc Network. This protocol is based on one-hop...
An ad-hoc network is the cooperative engagement of collection of mobile nodes without the required intervention of any centralized access point or exiting infrastructure. The need for an efficient routing protocol in mobile ad hoc network is widely proclaimed. A lot of routing protocols have been proposed. They are categorized into three parts according to the way how their routing tables are constructed:...
We study the rendezvous data collection problem for the mobile sink in wireless sensor networks. We introduce to jointly optimize trajectory planning for the mobile sink and workload balancing for the network. By doing so, the mobile sink is able to efficiently collect network-wide data within a given delay bound and the network can eliminate the energy bottleneck to dramatically prolong its lifetime...
In order to prolong the lifetime and reduce the transmission delay of Wireless Sensor Networks (WSNs), we propose a novel Hierarchical Routing Protocol based on Dynamic Weight (HRPDW) for WSNs. In our HRPDW, first considering the important parameters of both residual energy and transmission delay, we set the dynamic weight; second, every sensor node stores the dynamic weights of its several adjacent...
The current networks are often designed with redundancy in order to deal with unexpected failures, but this makes a large amount of energy consumption and bandwidth waste. In the real networks, the performance is limited by the link's capacity which gives an upper bound of the traffic amount conveying through the links. In order to explore energy saving methods in the networks, we consider a model...
This paper studies gradient routing with two-hop information for industrial wireless sensor network to enhance real-time performance with energy efficiency. The two-hop information routing is adopted as that in two-hop velocity based routing and the proposed routing algorithm is based on the number of hops to sink instead of distance. Furthermore, an acknowledgement control scheme reduces energy consumption...
In the recent years, the Ad-Hoc networks have been the focus of many researches especially in the routing protocols which include Proactive and Reactive routing. The strategy of forwarding the data packets from the source to the destination is the ultimate goal of routing protocols. Hence, the difference between these protocols is based on searching, maintenance and recovering the route path. The...
Multiple autonomous underwater vehicles (AUVs), communicating with each others in an opportunist way and through an arbitrary topology, create an ad-hoc underwater sensor network. Due to the mission in which AUVs might be employed or simply due to the drift typical of underwater scenarios, each node might be subject to movements from its initial position, leading to a variation on the network topology...
Wireless sensor networks (WSN) can be an attractive solution for a plethora of communication applications, such as unattended event monitoring and tracking. One of the looming challenges that threaten the successful deployment of these sensor networks is source-location privacy, especially when a network is deployed to monitor sensitive objects. In order to enhance source location privacy in sensor...
Design of efficient routing protocols for underwater sensor networks is challenging because of the distinctive characteristics of the water medium. Currently, many routing protocols are available for terrestrial wireless sensor networks. However, specific properties of underwater medium such as limited bandwidth, high propagation delay, high bit error rates, and 3D deployment make the existing routing...
Clustering is a good method to increase WSN lifetime and particularly for smart environment. In this paper, we present fuzzy position based routing for clustered sensor network. It is very useful for the smart environment applications of wireless sensor network without GPS support. The destinations could be located with ambiguous position vectors, and the long time and energy consumption of requesting/replying...
Reducing energy consumption in the Internet has become an increasingly important goal recently. Previous work on reducing energy consumption has primarily looked at either changing link rates or putting interfaces to sleep. Due to the unpredictable nature of traffic, the energy savings achieved have been modest, do not scale, and incur losses and delay. This paper proposes a different approach to...
This paper presents the study of an access point (AP) deployment strategy which aims to reduce the energy expenditure of ubiquitous motorway network coverage while ensuring Quality of Service (QoS) requirements are maintained at acceptable levels. For this reason, we, in this paper, study the consumption of energy in a scenario where three operational APs are deployed on a motorway with and without...
With the rapid growth of high data rate applications, significant amount of energy is consumed by base stations' equipment. In order to save energy, it is better to deploy fewer base stations (BSs) or switch off as many as possible. However, this is usually attained at the expense of quality of service (QoS). In this paper, we deploy fewer BSs to reduce energy consumption and study the performance...
In wireless sensor network most of the devices operate on batteries. These devices or nodes have limited amount of initial energy that are consumed at different rates, depending on the power level and intended receiver. In this paper different type of energy efficient routing algorithms are discussed and approach of these algorithms provide the maximum system lifetime. Most of the algorithms formulate...
Lifetime is the most important concern in wireless sensor networks due to limited battery power of sensor nodes. In this paper, we focus on designing an energy-efficient and energy-aware routing algorithm, LLR, to increase the operational lifetime of multi-hop wireless sensor networks in the presence of unreliable communication links. Our proposed protocol utilizes a parameter, Broadcasting Delay,...
The selection policy of an adaptive routing algorithm plays an important role on both performance and power figures of a network on chip (NoC). In this paper we propose a new selection policy which is power-aware. The basic idea is taking into account not only a performance metric but also a power metric related to both self and coupling switching activity of the selected output link. The experimental...
In many applications of wireless sensor networks, a sensor node senses the environment to get data and delivers them to the sink via a single hop or multi-hop path. Many systems use a tree rooted at the sink as the underlying routing structure. Since the sensor node is energy constrained, how to construct a good tree to prolong the lifetime of the network is an important problem. We consider this...
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