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Multi Radio Multi Channel Wireless Mesh Networks (MRMC-WMNs) are undergoing rapid progress and inspiring numerous deployments. These networks require carefully assignment of resources and load balancing to provide the quality guarantees to traffic flows. Load balancing avoids the creation of bottlenecks and increases the network efficiency. Certainly, we need a benchmark to compare the performance...
Wireless sensor networks (WSNs) are used in many applications to gather sensitive information which is then forwarded to an analysis center. Resource limitations have to be taken into account when designing a WSN infrastructure. Unbalanced energy consumption is an inherent problem in WSNs, characterized by multihop routing and a many-to-one traffic pattern. This uneven energy dissipation can significantly...
This paper presents a novel scheme for avoiding congestion in the field of wireless sensor networks. Our new scheme provides a priority based approach for wireless sensor cluster network to reduce traffic load using congestion aware routing (CAR). It proposes the new mechanism for the purpose of mitigating congestion which enhances the performance of the network. The proposed mechanism uses congestion...
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...
This paper presents a routing method that increases the reliability and product yield of Network-on-Chip (NoC) architectures while incurs a negligible cost. This method has a multi-level fault-tolerance capability and therefore it is capable to tolerate more faulty links and routers with extra cost in higher levels. The proposed algorithm uses dynamic reconfiguration to handle permanent faults but...
This paper proposes a scalable CGM (Consumer Generated Media) distribution system that delivers newly published content in real time to the appropriate users whose preferences coincide with the content topic. In the proposed system, a semantic P2P network is constructed based on CAN (Content Addressable Network) to distribute content according to the similarity between user preferences and the content...
In Optical Burst Switching Network, contention is one of the challenging problems. Contention occurs when more than one burst demand for same output wavelength channel in same time. The deflection routing, fiber delay line (FDL) and wavelength conversion are the methods used to resolve contention in OBS Networks. With deflection routing, contending bursts in send in another route rather than primary...
In order to maximize the number of connections and reduce the blocking probability of wavelength division multiplexing (WDM) optical networks, a dynamic routing and wavelength assignment (RWA) algorithm is studied in this paper. In the absence of wavelength converter, the network performance deterioration is more likely caused by bottleneck links of the network, which is related to static factors...
As the number of applications and programmable units in CMPs and MPSoCs increases, the Network-on-Chip (NoC) encounters unpredictable, heterogeneous and time dependent traffic loads. This motivates the introduction of adaptive routing mechanisms that balance the NoC's loads and achieve higher throughput compared with traditional oblivious routing schemes. An effective adaptive routing scheme should...
In this paper, results of extensive research concerning synergy of dynamic routing and interconnection charging methods are presented. The impact of various dynamic traffic routing methods on different performances of interconnected telecommunications network with the application of bill-and-keep interconnection charging is analysed. For the purpose of our research, we developed the software for Routing...
Cognitive networks embody a sense of dynamic responsiveness as actions are typically taken in response to changing circumstances and changing resource availability, which use prior and current knowledge gained from the network to take actions with respect to the end-to-end goals of the whole network. According to the cognitive network framework, a multi-path routing algorithm based on traffic prediction...
Internet core routers are facing challenges brought by the ever-increasing transit bandwidth and routing scale. In order to meet the requirements of highly efficient packet forwarding, some solutions propose to load a small portion of the BGP RIB entries into the FIB. Therefore the most popular prefixes, which contribute major traffic loads, need to be cached in the FIB as long as possible. In this...
The popularity of community-centric applications has rapidly grown during the recent years. In this paper, we evaluate the robustness of a P2P community management system, where communities are established as autonomous DHT overlays that are advertised in a global DHT overlay. The evaluation is based on the experimental measurements conducted using a DHT-based protocol with two DHT algorithms called...
Nowadays Service Providers (ISP) are more interested in deploying new traffic engineering (TE) methods offered by Multiprotocol Label Switching Traffic Engineering (MPLS-TE) path-oriented forwarding technology. The attractiveness of this technology is encouraged by the possibility to deploy better forwarding performance, constrained based routing restricted by the network resources and Quality of...
Low Earth Orbit (LEO) satellite networks are expected to provide a variety of multimedia applications. In order to satisfy different QoS requirements and optimize utilization of network resources, a novel traffic classification routing algorithm (TCR) is proposed. The key technique of TCR is investigating the traffic classification link-cost metrics (TCM) for different traffic classes, which selects...
In this paper, we present performance evaluation of various routing protocols including SIFT, GPSR and GOSR using different mobility models such as Random Waypoint Model (RWM), Fluid Traffic Model (FTM) and Intelligent Driver Model with Intersection Management (IDM-IM). We present simulation results that illustrate the importance of choosing a mobility model in the simulation of a vehicular network...
The Hierarchical Optimized Link State Routing (HOLSR) protocol was designed to improve scalability of heterogeneous Mobile Ad-Hoc Networks (MANETs). HOLSR is derived from the OLSR protocol and implements Multipoint Relay (MPR) nodes as a flooding mechanism for distributing control information. Unlike OLSR, nodes are organized in clusters and implement Hierarchical Topology Control (HTC) messages for...
Spurred by the increasing demand for mobile broadband services and the growing number of devices supporting multiple radio access technologies (e.g., cellular, WiMAX, Wi-Fi, Bluetooth), much research is being done to improve the user experience while addressing issues related to network efficiency, congestion, interference, and cost to operators, service providers, manufacturers, and consumers alike...
In this paper, we evaluate how traffic-load dependent vehicle routing at intersections is able to improve the connectivity status of all streets. To this end, we consider a VANET scenario, comprised of several streets and intersections. Then, we focus on two vehicle routing algorithms, one based on the distance to destination, i.e., traffic-load independent (TLI) algorithm, and another one based on...
In this paper, a MIMO routing protocol called as DZMRP (Double Zones MIMO Routing Protocol) for MIMO ad hoc networks was proposed. The DZMRP is a hybrid routing protocol that proactively maintains routes within a local zone of the network, which referred as the local routing zone and is divided into diversity zone and multiplex zone. Different updating frequencies of the changes of link connectivity...
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