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The scope is to provide a recommended practice to provide the architectural framework enabling WPAN devices to promote interoperable, stable, and scaleable wireless mesh topologies and, if needed, to provide the amendment text to the current WPAN standards that is required to implement this recommended practice. The "IEEE Get Program" grants public access to view and download individual...
In this paper, we develop and study a model to identify cost optimized Multi-Path Entity (MPE) locations in the context of hybrid fixed and mobile access for a large German telecom operator. We consider the operator's network architecture as well as the related cost components including network elements and nodes. The objective is to support future network planning with a techno-economic sensitivity...
In this paper we first report on an optimization process for assessing the sensitivity on CAPEX of the most important parameters of IP-aggregation / IP-core and WDM transport networks. We then combine resulting transport network topologies with content delivery functions placed in caches. We analyze their impact on network CAPEX and optimize content delivery deployment for specific scenarios. We consider...
Time quantization error is the major component of dynamic time error which is caused by the time stamping. Both the constant and dynamic time error components contribute to the time error in a network, which limits the number of clocks, cascaded in a chain. Due to complex network topologies and different network technologies, the limit on the number of intermediate supporting clocks may not meet all...
In this paper we assess the sensitivity of the most important topological parameters of an all-IP network with WDM transport planes with respect to a capital expenditure (CAPEX) optimization. We consider conservative and progressive traffic growth scenarios applied to several access network architectures in an effort to identify optimum metro and core router locations.
The quality of service (QoS) has been one of the most important aspects of voice telephony networks. The simplest format of telecommunication network topology is point‐to‐point, that is, direct connection of two devices, or nodes. The network standards typically dictate the topology, or set of topologies that are possible to adapt in the respective deployments. The telephone equipment is principally...
There are many routing protocols for MANET(Mobile AdHoc Networks). One of the popular routing protocols is OLSR(Optimized Link State Routing). For a long time, the researchers propose many enhanced schemes to OLSR routing protocol. In this paper we propose a novel mobility prediction routing protocol with energy awareness scheme, named EMP-OLSR, based on the OLSR routing protocol. For this routing...
The node localization process of the traditional DV-Hop scheme is sensitive to the heterogeneity of network topology, and the robustness of the scheme is poor while the network topology is diversiform due to random node deployment. Aiming at such a problem, an improvement strategy is put forward, and different treatment algorithms are introduced in the distance estimation step and the position calculation...
In Machine-to-Machine (M2M) communication networks, the signalling congest and complexity for resource allocation is becoming one of the most important problems that should be dealt with the increasing of network scale. In this context, a clustering transmission strategy for the large-scale M2M networks has been proposed in this paper. To make the scheme can be carried out in distributed way, a joint...
A Vehicular Ad Hoc network (VANET) is a temporary autonomous communication system that consists of a group of vehicles which can routing and forwarding packets, in which there are no central vehicles or fixed communication infrastructures. All the vehicles in the network communicate with each other by two kinds of link, which is cable link and wireless link. We first summarize the research status...
An important consideration in efficient routing design is the nature of access network and application requirements. Consequently, routing algorithm designed for general mobile ad hoc networks may not be adequate for Wireless Mesh Networks (WMN) deployment because of significant architectural differences. Furthermore, recent Internet traffic dominated by video data transmission in real-time requires...
Load balancing is a key technique to balance energy consumption, prolong network lifetime and reduce delays in Wireless Sensor Networks (WSNs). In this paper, a Spanning Multi-Tree (SMT) algorithm in multi-sink WSNs with heterogeneous traffic generating nodes is studied. In the SMT algorithm, multiple trees, each rooted from a sink, will be formed in order to cover all sensor nodes in the network...
The typical wireless network topology for general purpose multi-robot systems is mesh network topology. However, this most commonly used mesh network routing protocol is not the optimal solution for multi-sniffer robots, which have different characteristics as compared to other multi-robot systems. Multi-sniffer robots are to perform Odour Source Localisation (OSL) tasks i.e. searching and identifying...
This paper presents a methodology which includes some technical guidelines, plan of development, and migration of communication technologies that may be used in the design of a communication network in the electric utility companies. Some patterns are analyzed containing conceptual visions used as references for elaboration of any technical action in the development of interoperable communication...
This article addresses the main challenges and requirements for the design of the communication network to meet Smart Grid applications of a CELPE (Companhia Energetica de Pernambuco) research project and development situated at Fernando de Noronha island, titled: THE DEVELOPMENT AND IMPLEMENTATIONS PROOF OF CONCEPT OF INTELLIGENT NETWORK (IN) PILOT WITH HIGH ENVIRONMENTAL RESTRICTIONS ?? CASE ISLE...
The main objective of the Ad hoc network is to deliver payloads from source node to destination. The Route discovery process results multiple paths among source and destination. The centralized infrastructure or monitoring unit is missing in the MANET to scrutinize overall routing activities, No standard configuration exists to perform parallel routing because of various factors like mobility of nodes,...
The pioneering work of Gupta and Kumar [1] has inspired many subsequent studies on asymptotically achievable per node throughput and delay analysis for wireless networks. In this paper, we evaluate the delay and maximum achievable per node throughput of a heterogeneous wireless mesh network (HWMN). We derive an analytical model which incorporates diffusion approximation method [2] and then compare...
Aggregate traffic in high speed networks is characterized by “burst within burst” structure over a wide range of time scales, heavy tailed inter-arrival time densities, self-similarity and long range dependence. These properties are followed by a degradation of quality of service in aggregate traffic. A high self-similarity grade will eventually fill up the network equipments memory and queues no...
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...
Optical code-division multiplexing (OCDM) over wavelength-division multiplexing network technology is of interest for all-optical networks because it has many channels and can create a secure network. However, OCDM networks experience a cycle-attack problem due to multi-access interference propagation; if the problem occurs, all transferred signals cannot be decoded. To avoid this problem, the OCDM...
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