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Conventional datacenters, based on wired networks, entail high wiring costs, suffer from performance bottlenecks, and have low resilience to network failures. In this paper, we investigate a radically new methodology for building wire-free datacenters based on emerging 60GHz RF technology. We propose a novel rack design and a resulting network topology inspired by Cayley graphs that provide a dense...
Wi-Fi Mesh Community has turn out to be an important area community to offer internet to challenge the thrown domains and wireless link in metropolitan environments. In this paper, hassle of figuring out the most to be had bandwidth direction is targeted, which is an essential problem in helping pleasant-of-carrier in WMCs. Due to the concept of interference, bandwidth, which is a familiar challenging...
Geographic routing protocols require only local information for routing decisions and thus is considered very efficient in large-scale wireless networks such as Vehicular Ad-hoc Networks (VANETs). In geographic routing, one of the neighbor of sender vehicle is selected as next forwarding vehicle to forward the message to the destination nodes. Various geographic routing protocols have been proposed...
Mobile Ad Hoc Networks (MANETs) merge wireless communication with higher node mobility. Restricted wireless communication range, and node mobility requires cooperation with all others to offer networking, and with the network changing vigorously, needs are to be continually met. Routing protocols allows MANET operation. To improve the performance of the routing, various constraints such as bandwidth...
A Bandwidth reservation is an essential component in providing of quality of service (QoS) in vehicular ad hoc networking (VANENTs). The recommended MAC protocol for VANET experiences a high percentage of packet loss. Somehow its performance can be improved by using Time Division Multiple Access (TDMA) techniques. In this paper, we propose a new algorithm for multi-constrained QoS routing and show...
The mobile devices are becoming the important part in our day to day life. These are now one of the basic needs of our daily life. These devices are used to share the data of interest with one another. Data may be in the form of picture or video clip , news etc. But sometimes , data cannot reach to the user who is interested ,because of delaying of messages. Sometimes nodes do not want to loose their...
A novel protocol is being designed for efficient congestion control with the principle of cross layer approach. This protocol will support congestion control in overcrowded traffic using multi-path routing scheme. This protocol finds application in the scenario where fairness in rate is enhanced by adapting route optimization with reduced queue length. The underutilized channel capacity information...
There has been rapid growth in the area of wireless communication by Wireless Mesh Networks (WMNs) where routing metric is the key metric to find the optimized route in WMNs. For obtaining optimal performance, integrating multiple performance metrics into a routing protocol is effective, as single metric will not be able to satisfy the thorough requirement of WMNs. This paper has proposed a new routing...
Traffic engineering (TE) has long been used by network providers to reduce network congestion and improve resource utilization. Due to its significance, several traffic engineering algorithms have been proposed in literature. However, most of these algorithms optimize maximum link utilization (MLU) in network, and/or assume that network has the capability to route demands on arbitrary paths. Optimizing...
Vehicular networks are increasingly gaining popularity among researchers for their potential to enable diverse applications associated with road traffic safety, infotainment and road transportation management. In this paper we present a QoS-based routing protocol named VanetQoS which purpose is to accommodate real-time and multimedia applications with specific quality of service (QoS) requirements...
Routing algorithms in Mobile Ad hoc Networks like DSR, AODV use flooding as the primary mechanism for discovery of routes in the network. In flooding, each node forwards flood packets to its neighbors so as to ensure that the packets reach the intended destination. Forwarding of redundant flood packets create extra overhead on network bandwidth. However, only a subset of nodes need to forward the...
The paper examines mobile TDMA-based ad hoc networks exposed to follower jamming. The focus is to examine how the terrain and network protocols influence jamming resistance. To study the network properties under follower jamming, network simulations are performed. The investigated networks in a flat terrain become more jammed than the corresponding networks in a hilly terrain. The packet delivery...
Multi-path routing concept was largely exploited in wireless networks to provide benefits such as fault tolerance, load balancing, performance improvement in terms of latency, etc. In this paper, we propose a multi-path routing based protocol named MP-IMRR (Multi-path Intra-Mesh infrastructure Routing protocol) to improve our previously defined QoS based routing protocol for wireless mesh networks...
Open Shortest Path First (OSPF) is a popular routing protocol for the Internet services. OSPF causes network congestion if specific path becomes bottle neck links. However, OSPF can't avoid this congestion dynamically. In this paper, we propose the routing method using available bandwidth and degree. It is confirmed that the proposed method shows lower packet loss rate, shorter transmission time and...
The Internet has become an integral part of human's life with an ever increasing number of applications and services that it provides to its customers. Both the numbers of Internet users and services provided by the Internet continue to rise tremendously. Quality of Service (QoS) is the ability of a network to provide better services for the users to divide the bandwidth according to the needs of...
In this paper, we investigate the problem of providing highly available, decentralized, dynamic path selection in high performance computing networking. We look at a use case for dynamic path selection that better utilizes bandwidth available in the network. The network architecture we propose is a partial mesh grid whereby each host is directly connected to four forwarding devices. We propose an...
In this work, we propose a novel quality link metric; Bandwidth adjusted Inverse ETX (BIETX) for Static Wireless Multi-hop Networks (SWMhNs). The proposed metric considers two path selection parameters into account i.e., packet delivery ratio and link capacity. For computing packet delivery ratios in BIETX, the mechanism of Expected Transmission Count (ETX) is adopted. On the other hand, we take two...
In Ad Hoc technology, a mobile node is characterized by a limited battery power. Therefore, the energy consumption becomes an important challenge that must be taken into account when designing a new Ad Hoc routing protocol. An efficient routing protocol should also consider a high level of Quality of Service (QoS) such as the end-to-end delay and the bandwidth as the applications do not have the same...
The class of flooding-based DTN routing protocols that leverage (transitive) encounter probabilities have been shown to perform well in selected simulations and scenarios, however they are especially sensitive to heterogeneous mobility models in which some nodes' mobility pattern is on a significantly different timescale than others. In particular, military and disaster response scenarios can exhibit...
In this paper, we analyze flow-based routing schemes in SDN. Specifically, we study the flow-based routing performance; combining the knowledge of the link condition and updating the period for calculating the path. The framework uses centralized control of SDN where the SDN controller calculates available paths to determine the routing policy based on a global knowledge network. This flow-based routing...
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