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Software-Defined Networking (SDN) is an innovative approach to provisioning and delivering QoS (Quality of Service) services, yet it is still devoid of context-differentiating services. In this paper we propose a network application (Autonomic QoS Broker) and a controller module that implements the OpenVSwitch Database Management Protocol (OVSDB). These two components were implemented and validated...
Extending the notion of Software Defined Network (SDN) from packet switching in Layers 2 and 3 to circuit switching in transport layer for service providers is a promising scenario to meet the high burstiness and high bandwidth requirements. For service providers to have a multilayer, multi-domain controller, which can provide automated controller based restoration and protection even in unprotected...
The current design drivers for multi-cores, namely performance per watt, scalability and flexibility, make the Networks-on-Chip (NoCs) the de-facto on-chip interconnect. State of the art NoCs can exploit heterogeneous solutions and complex DVFS techniques to fulfill also the variability of the application requirements. Relevant showstoppers to the design of a truly flexible NoC fitting all the possible...
The use of Software Defined Network (SDN) in recently networking architecture has brought tremendous advantage in computer networking technology. Administrative issues such as routing, security and load balancing can be centralized and automated in SDN controllers. Controllers have been an integral part of the SDN architecture enabling intelligent networking. However, because all the packets are transmitted...
Multi-Path TCP (MPTCP) boosts network performance of applications by aggregating bandwidth over multiple paths using sub-flows of the same TCP connection. However, MPTCP suffers from three limitations: (1) it is an end-to-end protocol with no control over the network routes, and sub-flows might end up traversing the same links, (2) it has no dynamic control over choosing the optimal number of sub-flows...
Determining key characteristics of High Performance Computing machines that allow users to predict their performance is an old and recurrent dream. This was, for example, the rationale behind the design of the LogP model that later evolved into many variants (LogGP, LogGPS, LoGPS, ) to cope with the evolution and complexity of network technology. Although the network has received a lot of attention,...
Processing-in-Memory (PIM), has recently been revisited as one of the most promising solutions to deal with the issue of bandwidth and power wall between processor and memory. In this paper, we propose a light-weight PIM architecture, approxPIM, which leverages approximate computing techniques to enable InMemory Processing in a realistic 3D-stacked DRAM, Micron's Hybrid Memory Cube (HMC). Using the...
Elbrus is an explicitly parallel VLIW instruction set architecture developed by MCST. In this paper, we introduce the microarchitecture of the 5th generation 8-core Elbrus-8C processor implemented on 28nm. Elbrus-8C has 5x the peak performance for floating-point operations as compared with its predecessor, the Elbrus-4C processor, due to improved single-core performance and doubled number of cores...
Many LTE-Advanced algorithms and protocols rely on node coordination and cooperation to reduce power consumption, increase spectral efficiency and improve cell-edge performance. Functions such as Coordinated Multi Point, Network Assisted Handover, etc., require a standard connection among nodes to support their operations. The LTE X2 interface meets the above requirements and allows operators to connect...
Network operators have worked in interoperable scenarios for transport network from several years. The main motivation is to have a rich ecosystem, which encourages the competition to have more efficient network solutions. The bandwidth increment in the transport network puts a lot of pressure to have revenues on an environment where the end-user is willing to pay less and less for the service. Software...
A well-known technique for enhancing the performance and stability of content distribution is the use of multiple dissemination flows. Multipath TCP (MPTCP), the most popular multiflow protocol on the Internet, allows receivers to exploit multiple paths towards a single sender. Nevertheless, MPTCP cannot fully exploit the potential gains of multipath connectivity, as it must fairly share resources...
The ability of reconfiguring a system during runtime is essential for dynamic real-time applications in which resource usage is traded online for quality of service. The HaRTES switch, which is a modified Ethernet switch, holds this ability for the network resource, and at the same time it provides hard real-time support for both periodic and sporadic traffic. Although the HaRTES switch technologically...
Ubiquity of applications supporting the networked society demands an efficient communication system to support Machine Type Communication (MTC) devices. The current architecture is not optimized for MTC traffic patterns and therefore, may lead to excessive signaling. In this paper, we propose a simplified approach to wireless connectivity to cope with the requirements of Massive MTC devices. The essence...
On-chip communication architectures play an important role in determining the overall performance of System-on- Chip (SoC) designs. Communication architectures should be flexible so as to offer high performance over a wide range of traffic characteristics. In state-of-the-art multi-processor systems-on-chip (MPSoC), interconnect of processing elements has a major impact on the system's overall average...
The internet is vast and growing continuously. There is a need to control the characteristics and to provide security to the network. Software defined networking (SDN) is an approach where we divide the network into control and data plane. Using SDN and Hadoop in this paper we show a method to control characteristics and provide security to the network which is helpful in capacity planning and attack...
Software Defined Network abbreviated as SDN is a new paradigm which is transforming the existing network into a real time dynamic and programmable network. The logically centralized nature of SDN supports the emerging network architecture with many features such as centralized control of the network by decoupling the control plane and data plane thus enabling a global view of the network. It provides...
Wireless sensor networks (WSN) nowadays are used in variety of applications having various quality of service (QoS) requirements. Hence they are required to provide different levels of Quality of Services based on the type of applications. As these Wireless Sensor Networks are constrained by the processing speed, memory capacity, energy more concentration is given in these area ignoring other parameters...
In Cloud-based VDI, users can access the virtual desktop service anytime and anywhere with the wide variety of terminals. The lightweight virtual desktop display protocol is required to support more users on the limited resources and to provide service to mobile users. In this paper, we design and implement the virtual desktop system using lightweight virtual desktop display protocol which would reduce...
Modern computer networks need components that can evolve to support both the latest bandwidth demands and new protocols and features. To address this need, we propose a new programmable packet processor architecture built from an FPGA containing an embedded Network-on-Chip (NoC). The architecture is highly flexible, providing more programmability than is possible in an ASIC-based design, while supporting...
Network Intrusion Detection Systems (NIDS) and Anti-Denial-of-Service (DoS) employ Deep Packet Inspection (DPI) which provides visibility to the content of payload to detect network attacks. All DPI engines assume a pre-processing step that extracts the various protocol specific fields. However, application layer (L7) field extraction is computationally expensive. We propose a Deep Packet Field Extraction...
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