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One of the critical issues in a Wireless Sensor Network (WSN) is the design of a proper routing protocol. While the requirement of low latency and low-energy consumption is getting more and more importance in emerging applications, the WSN should be capable of fulfilling its mission in a timely manner and without loss of energy. In this paper, we focus on multi-hop flat routing. A mathematical model...
Large propagation delay, high error rate, low band-width and limited energy in Underwater Sensor Networks (UWSNs) attract the attention of most researchers. In UWSNs, efficient utilization of energy is one of the major issue, as the replacement of energy sources in such environment is very expensive. In this paper, we have proposed a Cluster Depth Based Routing (cDBR) that is based on existing Depth...
Detectable Opportunistic Forwarding (DOF) is a duplicate free opportunistic forwarding protocol for low duty cycled wireless sensor network. DOF enables senders to obtain the information of all potential forwarders through acknowledgement scheme deliver the data packets to the next hop forwarder. Based on admission control algorithm using link stability the duplicate packets can be removed. The experimental...
Wireless Sensor Networks (WSNs) come across various challenges when it comes to its design and operations which cause major degradation in their performance. With increasing number of applications having their own different limitations, make the challenge of application expectations even greater for such resource limited networks. These challenges appear at different layers of WSNs starting from physical...
The contribution of this article is two local recovery methods that may reduce overhead and make a more immediate reconnection of disconnected nodes compared to the soft state global recovery method applied in WSNs running RPL [1]. In addition, we perform an analysis of the implication to better judge the context where local recovery methods should be used. One of our suggested methods is based on...
In order to reduce the routing's energy cost, improve the reliability of the entire network, and ensure the service quality of data transmission, as well as lower the transmission delay in wireless sensor networks, an improved minimum hop routing protocol based on residual energy and congestion (CEMHR) is proposed, which consider energy, congestion and backup strategy. What is more, the protocol adopts...
A challenging issue in data collection in duty-cycled wireless sensor networks (DC-WSNs) is the trade-off between lifetime and latency. Indeed, duty-cycling has long been a critical mechanism for energy conservation in WSNs where the sensor nodes switch between active and dormant states. Moreover, this mechanism involves strong sleep latencies leading to severe end-to-end delay degradation. In this...
Wireless sensor and actor networks require efficient coordination mechanisms to perform reliable actions in the physical world. In this paper, an energy and delay aware three-level coordination mechanism is proposed for wireless sensor and actor networks using twolevel hierarchical k-hop clustering algorithm. An optimal number of actors are calculated based on the network area and number of sensors...
Energy efficiency is one critical issue for sensor networks because many sensors are equipped with batteries that have limited life time. This paper is focused on Opportunistic routing which is a recent technique that achieves high throughput in the face of lossy wireless links. The existing opportunistic routing protocol, ExOR (ties the MAC with routing) and MORE (MAC-independent) did not explore...
The field of wireless multimedia sensor networks (WMSN) is attracting more and more research community as an interdisciplinary field of interest. This type of network is low-cost, multifunctional due to advances in micro-electromechanical systems, and the proliferation and progression of wireless communications. However transmit multimedia information captured must satisfy the criteria of QoS , which...
The area of study and work presented in this paper is on a method of routing in sensor networks that is a part of Geographic Routing protocol known as Greedy Forwarding. This is an much more efficient version of methods that are applicable in GR. This works on the principle of progressing in the process of forwarding by selecting a peer that is nearer to the final node where the packets are destined...
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