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Research on routing in a network of intelligent, lightweight, micro and nano-technology sensors deployed in or around the body, namely Body Area Network (BAN), has gained great interest in the recent years. In this paper, we present an energy efficient, thermal and power aware routing algorithm for BANs named Energy Efficient Thermal and Power Aware routing (ETPA). ETPA considers a node's temperature,...
Routing is a challenging issue when dealing with the multi-hop cognitive radio networks (CRNs). The stability of a route is highly influenced by the behavior of the primary user. The more frequently primary user changes its activity, the less stable spectrum availability the cognitive user has. This causes tremendous route stability fluctuation in CRNs. The radio environmental issues that affect the...
In emergency and rescue operations, wireless mesh networks are attracting increased attention as a high-performance and low-cost solution for ubiquitous network access. In this paper, we evaluate the novel secure mesh route discovery protocol PASER, which has been designed to address the mesh network security in such critical environments. The protocol aims to set up reliable ad-hoc routes between...
Wireless ad hoc routing protocols must employ accurate and rapid link failure detection mechanisms in order to maintain valid multihop routes and provide high data delivery rates. Hello-based failure detection is the predominant failure detection mechanism due to its ease of implementation. Despite its prevalence, no analytical work has been carried out to better understand its fundamental behavior...
AODV (Ad hoc On-Demand Distance Vector) Routing is an on-demand routing protocol under which few routing time is consumed when there is no communication or when the routes are already known. In some working environment such as military or expedition the large numbers of nodes are divided into some small logical local groups. The nodes in one group are always near each other while having heavy communication...
The Wireless Sensor Networks (WSNs) have a wide range of applications such as target detection and tracking, environmental monitoring, and tactical systems. However, lower sensing ranges result in dense networks, which brings the necessity to achieve an efficient medium access protocol subject to power constraints. Various MAC protocols with different objectives were proposed for wireless sensor networks...
This paper introduces the design process of GARI, a novel routing protocol that incorporates cognitive networking concepts. This approach involves the monitoring of dynamic network conditions locally to adapt the routing strategy for a better performance of the global system. The result is a self-organizing network that meets the service requirements for the emerging applications of ad hoc networks.
Routing is one of the most significant challenges regarding mobile ad hoc networks (MANETs). Having no fixed infrastructure as well as frequent changes of network topology, as a result of nodes mobility, necessitates cooperation of all nodes in routing of packets. Lack of cooperation in routing can result in performance reduction and even network denial of service. Uncooperative behavior can be performed...
Satisfying Quality of Service (QoS) requirements(e.g. bandwidth and delay constraints) for the different QoS based applications of WSNs raises significant challenges. Each algorithm that is used for packet routing in such applications should be able to establish tradeoffs between end to end delay parameter and energy consumption. Therefore, enabling QoS applications in sensor networks requires energy...
DTN (Delay Tolerant Network) is a new type of mobile Ad Hoc network. Due to its characteristics such as long communication delay, high dynamic topology, it is difficult to maintain the stability of end to end paths. Therefore, design of effective and reliable routing algorithms has become the key issue in DTN. To avoid random and blindfold forwarding in Spray and Wait routing, a DTN routing algorithm...
Ad hoc On demand Distance Vector (AODV) is a commonly used routing protocol for Vehicular Ad hoc NETworks (VANET). This paper presents and analyzes several AODV enhancements propositions dedicated to the VANET context. Communication protocol tuning can yield significant gains in energy efficiency, resource requirement, and overall network performance, all of which is of particular importance in VANETs...
Scalable multicast protocol design based on the Bloom filter has received much attention from the research community recently. With the Bloom filter-based design, routing information is carried by the multicast data packet in the format of a Bloom filter. As the network node has no need maintaining a forwarding state for each group it is supporting, the Bloom filter-based multicast protocols are more...
Wireless Sensor Networks (WSNs) consist of small devices with processing, communication and sensing capabilities. These devices interact together to carryout monitoring tasks. An example of such network is a photo-voltaic (PV) power plant where each solar panel has a sensor. The number of interconnected solar panels can become very large, and spread over a large area. Each sensor will sense the output...
Efficient link management is important for mesh networking. The links opened between neighbor STAs should be stable and ensure high probability of packet delivery. Various approaches of link management are usually compared by simulation. The core contribution of this paper is original link management efficiency criteria and an analytical model of decision-making process of link management in IEEE...
Now-a-days with the increasing number of mesh clients it has become a challenging task to provide uninterrupted internet connectivity for the clients. To solve this problem several mobility management schemes such as iMesh and MEMO, have been proposed. The major drawbacks of these schemes are: larger handoff delay and higher signaling overhead. A new mobility management scheme named Forward Pointer...
Aiming ate the disadvantage of network resource and load balance, this paper analyses the traditional multicast routing protocol base on tree, and then puts forward an improved multicast routing protocol based on network coding and existing distributed shared tree. It adopts minimal link to select the node and puts forward the algorithm of node selecting and shared tree constructing based on network...
In this paper we analyze the importance of packet loss consideration (PLC) within inter node communication of a WSN. We evaluate the link quality between network nodes based on the link packet loss and not on the received signal strength indicator (RSSI). Our assessment is based on in field measurements obtained using the IRIS Crossbow WSN. The measurements are used to show the impact of packet loss...
Routing path restitution approach to control and tolerate the congestion in routing models for mobile ad hoc networks is proposed in this paper. Packet loss in network routing is primarily due to link failure and congestion. The majority of present congestion control solutions do not possess the ability to distinguish between packet loss due to link failure and packet loss due to congestion. Here...
Wireless Mesh Network (WMN) have been envisioned as an important solution to the next generation wireless networking which can be used in wireless community networks, wireless enterprise networks, transportation systems, home networking and last-mile wireless internet access. Many proprietary mesh solutions were developed by individual vendor but in order to interoperability; IEEE forms a task group...
We investigated the use of caching of packets containing video at intermediary routers to reduce the delay and energy consumption of Automatic Repeat reQuest (ARQ) error recovery. We modeled the two mathematical programs that select the optimal set of routers to have caching ability, one to minimize energy consumption and the other to minimize retransmission delay. Both of these mathematical programs...
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