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Limited resources in Wireless Sensor Networks (WSNs) are the key concern that needs to be given a careful consideration when studying virtually any aspect of a sensor network. Therefore, energy demands and radio bandwidth utilization should be addressed, especially in one-to-many communication. To define the problem, this article presents and categorizes the most common WSN multicast procedures depending...
In communication networks data packets are often transmitted via multiple hops on certain destined source-destination paths. The topological structure of such a scenario can be modeled by multi-node tandem queueing networks, but the standard independence assumption of queueing theory does not hold, that is, modeling the packet processing times at the successive nodes as independent and identically...
On real-time video streaming, the distribution with multi-tree Application Level Multicast (ALM) is effective in terms of delay and jitter. In constructing multi-tree networks, a joining node selects counterpart nodes based on their performance or bandwidth capacity and they are connected each other. However, tree-based ALM has the overhead of reconstructing the tree topology when any node leaves...
Due to the heterogeneous, opaqueness and dynamic nature of Cloud Computing, existing MapReduce approach is not suitable for perform Parallel Computing on the cloud. In this paper, we propose a modified MapReduce framework which extracts the physical network topology information from the Virtual Machine Monitor (VMM) feature of VMs, in order to exploit dynamic resource allocations, and hence enable...
Achieving accurate, cost-efficient, and fast anomaly localization is a highly desired feature in computer networks. Prior works, examining the problem of single link-level anomaly localization, have claimed that a necessary condition for localizing anomalies unambiguously is to deploy resources that enable the monitoring of a set of paths distinguishing between all links of the network pairwise. In...
As SoC applications demand high performance and integration density, SoC designers consider multiple aspects during the design phase. This paper presents a Network-on-Chip (NoC) design methodology for generating high quality interconnects for multi-core System-on-Chip architectures. The design process incorporates the main objectives of low power and high performance during topology synthesis. A rendezvous...
In this paper, we investigated the problem of finding an efficient topology for delay-constrained data in WSNs. As we know topology control is one of the important mechanisms designed for decreasing energy consumption in WSNs. Since topology control may increase the end-to-end delay, one of the criteria's should be considered in topology control algorithms is delay constraint. Most existing works...
This work investigates the performance of Optical Burst Switched (OBS) mesh networks using Wavelength Division Multiplexing (WDM) and Localized Functional Resources (LFC). These OBS networks were designed to have the same amount of wavelengths in all the links of a mesh topology, but some nodes or links chosen from the knowledge of network utilization, have additional functional resources as Wavelength...
In order to reach a high performance level in a street lighting control system, two important aspects must be taken into account: the selection of the adequate communication protocol, on the one hand, and the selection of the network topology that supports the architecture, on the other hand. Given these circumstances, the present paper focuses on an assessment of the performance of the mesh and tree...
Rectangular Mesh is the most commonly used topology in the field of Network-on-Chip (NoC) due to its high regularity, symmetry and scalability. In this paper, we examine Honeycomb topology as another candidate for NoC architectures. Based on the simulations of Mesh and Honeycomb routers and network, we compare these two topologies in terms of power consumption, area cost and communication delay. Results...
Equal-Cost Multipath (ECMP) routing has been widely adopted to perform load balancing. With ECMP, a router can maintain multiple next hops for a destination IP prefix. The most common method used by such routers is to split traffic with per-flow basis evenly among those next hops. This approach, although simple, cannot achieve optimal load balancing. In this paper we study the optimal configuration...
As the number of processing elements in the future Networks on Chip (NoC) increases from multi-cores to many-cores, the role of the interconnection communications becomes more critical. The number of cores on a System on Chip (SoC) will reach thousands in the near future as predicted by the International Technology Roadmap for Semiconductors (ITRS). Currently, NoC interconnections are mostly implemented...
The evaluating indexes for the reliability of equipment support network plays an important role in the study of equipment support networking under the information conditions, and the evaluating indexes are the precondition and foundation for testing the reliability of equipment support network. The paper firstly defines equipment support network and the reliability of the network, and then makes the...
Network topology inference uses network measurement methods to find out the elements of internet in the target field and their connection relationship. In traditional network topology inference, traceroute-like methods which bases on the feedback information of routers are used, but anonymous routers seriously affect the performance. So tomography relying on end-to-end measurements has become a hot...
This paper proposes a GPON-based transmission hierarchy (GTH) for mesh network. An OPNET testbed is constructed to test the performance of GTH on supporting metro aggregation service. From this testbed, the performance of the network and the terminals are got, which will definitely provide some references for optimizing GTH's usage in mesh network.
Flash data dissemination transmits time-critical data to distributed receivers in a timely manner, which is widely used in many mission-critical applications. However, existing flash data dissemination approaches fail to guarantee the timely transmission due to the unpredictability of the dissemination process. Overlay routing has been widely used as an efficient routing primitive for providing better...
In the context of more massive data to be processed and more processing elements (PEs) to be laid on a single chip or board, the requirements for corresponding interconnection network are becoming even higher. This paper presents a new topology called xtorus, and evaluates it by using both theoretical analysis and experimental simulation method. For theoretical analysis, an algorithm for computing...
Industrial wireless sensor network design requires efficient channel usages and timeslot assignment. In this paper, we describe an integrated channel-timeslot allocation algorithm based on a routing-tree coloring scheme. According to a strict routing-tree definition and corresponding resource allocation principles, the algorithm performs in two phases. In the first phase, a traditional mesh sensor...
Opportunistic networks is one of the fast developing research areas in mobile communications. Under opportunistic networks, mobile nodes try to communicate with other nodes without any prior information and knowledge about the network topology. Furthermore, network topologies are dynamic and can rapidly change. In addition, communication under opportunistic networks is erratic, thus routes between...
Constrained minimum Steiner tree (CMST) problem is a key issue in multicast routing with quality of service (QoS) support. Many heuristics have been developed to solve this NP-complete problem. The bounded shortest multicast algorithm (BSMA) has been proved to be able to find solutions of very low cost with reasonable computation time. As such, it is still being widely used as a benchmark to evaluate...
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