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Although IEEE 802.11p technology is standardized for road safety and efficiency applications, the channel congestion problem is its key weakness necessitating distributed congestion control (DCC) algorithms on different layers of the communication stack. In this paper, we propose DCC-enabled Contention based Forwarding scheme targeting multi-hop dissemination of Decentralised Event Notification Messages...
This paper studies the problem of routing in a multilayer (communication and social) network. Network protocols, such as link state routing and its variants, heavily used in mobile ad hoc networks (MANETs) cannot sustain robustness and efficiency as the topological information becomes easily stale with fast network dynamics. Attempts to collect and exchange excessive network information would result...
As an emerging technology, software defined networking (SDN) allows flexible control of network devices and supports user applications with guaranteed quality of service (QoS). To achieve flow transmission between two non-adjacent switches in SDN, efficient routing algorithm should be designed. In this paper, we jointly consider route selection and flow allocation problem. To stress the service sensitivity...
This paper presents a novel method of selecting an optimal path between the nodes for data transmission in mobile ad hoc network. Mobile ad hoc network is a temporary, infrastructure-less network that communicates in multi-hop manner. Routing is an important issue in mobile ad hoc networks. Normally, routing protocol may selects the path between two nodes based on multiple metrics like distance between...
In this paper we discuss about 3 general issues on mesh topology in “networks on chip” (NOC): Utilizing multi-level mesh for delay reduction, using route by considering the mesh topology concept, and finally an optimal model of mesh topology named “multi-level mesh topology” which is defined based on 5-layer network model is suggested. In multi-level mesh topology we can see that this architecture...
In the traditional Publish/Subscribe (Pub/Sub) paradigm, most of the responsibilities lie with the broker, thus making it burdened. It also takes a considerable amount of time to first route the publications and subscriptions towards the broker, and then to further route the notifications to the subscribers. This leads to delays in data delivery. Besides delay and bandwidth consumption, the number...
Cognitive Radio ad hoc network is a sort of wireless network. Cognitive radios have the ability to sense the wireless medium. Routing is the major research area and ensuring quality-of-service (QoS) is a challenging problem. This paper proposes a neighbor node discovery mechanism based delay aware routing protocol in order to provide QoS in such network. Primary QoS metrics such as throughput and...
In the research the load balancing routing model in Time-Sensitive Networks is proposed. The novelty of the solution is a type of optimality criterion, the use of which minimizes the circuit delays. The proposed solution is compromise in terms of computational implementation as compared to the previously known models, in which the equality of the circuit delays of packets were considered as limitations,...
Recent years, with the emerging technology of cloud computing, the powerful computing and storage capability of cloud computing injects new vitality into wireless sensor networks (WSNs) and motivates a series of new applications. However, the data delivery from WSNs to Cloud becomes a bottleneck because of the poor communication ability of WSNs, especially for delay-sensitive applications, which limits...
A mobile adhoc network is an independent system of mobile stations associated by wireless link to form a system. This system can be modeled in the form of an uninformed graph. Adhoc networks are peer to peer, multihope networks were data packets are transmitted to a source to destination through intermediate nodes (which serve as router). The infrastructure is not the main issue to setup MANET and...
With the features provided by wireless mesh networks (WMN) and the increasing number of users, the Quality of Service (QoS) has become essential to support multimedia applications. In addition, employing the multichannel approach has led to the improvement of the network performance. However, selecting a path with the maximum available bandwidth to transmit data from the source to the destination...
Social connections among network users have been well investigated as an additional opportunity in network design, such as in routing strategies and trusted networking. This paper presents a paradigm shift that explores the design and performance analysis of combining social links jointly with communication links to support message delivery in wireless networks. In a combined social and communication...
A Mobile Ad-hoc networks (MANETs) is composed of Mobile Nodes without any fixed infrastructure. Multicast routing in mobile Ad-hoc networks (MANETs) have many defiance due to implicit characteristics of the network such as node mobility, reliability, finite network resources etc. So, in this paper we have introduced a new scheme to improve the performance and efficiency of multicast routing protocols...
It is a paradigm shift in internet architecture from receiver centric model to the information centric networking (ICN) model to improve the end-users' latency experience. With exponential increment in number of users and data volume, efficient usage of the nodes (caches) and content forwarding methodology are key issues in an ICN architecture. In ICN intra-domain routers have storage capacity and...
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...
This paper proposes a Hybrid Routing(HR) using ZigBee Tree Routing(ZTR) and Shortcut Tree Routing(STR). ZTR transmits a data through the parent node and the child node, and STR transmits a data to neighbor node which has the smallest number of hops toward the destination node in the neighbor table. On the other hand, HR method uses either ZTR or STR method according to situation of collision of CAP...
Increasing generated data volume and the rare bandwidth resource make the data delivery through vehicle-to-vehicle (V2V) a preferred mode for vehicular networks. However, in the urban vehicular environment, the traffic density information collected by the densely deployed cameras along the road were not used efficiently on the design of the data delivery policy. In this paper, a strategy for the decision...
There exist numerous routing protocols proposed to allow efficient routing in the network where the end-to-end paths are spontaneously unstable. Such networks are termed as Delay-tolerant-networks (DTNs). The existing famous routing protocols still remain important issues that need to be solved. For example, Epidemic quickly drains the resources of the network; PROPHET causes the unbalanced traffic...
End-to-end delay is an important QoS parameter in wireless sensor networks. The term end-to-end delay is the total amount of time taken for transmission of data to reach the destination. The parameter which causes end-to-end time delay in the wireless sensor network includes length of the path i.e. the number of repeaters and the congestion along the route. In this paper, main focus is end-to-end...
Wireless Sensor Network (WSN) is a collection of large number of sensors with low-power transceivers effectively used for collecting data in various applications like environmental monitoring, healthcare, civil and military applications. Efficient data transmission protocols are required to reduce transmission delay and energy of sensors to increase lifetime of sensor nodes. Recent researches in WSNs...
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