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IEEE Wireless Communications and networking Conference

作者： Vasuki Narasimha Swamy Paul Rigge Gireeja Ranade Anant Sahai Borivoje Nikolic University of California Microsoft Research

ISBN: (纸本)9781467398152

The Internet of Things (IoT) envisions simultaneous sensing and actuation of numerous wirelessly connected devices. Emerging human-in-the-loop applications demand low-latency high-reliability communication protocols, paralleling the requirements for high-performance industrial control. This paper introduces a wireless communication protocol based on network coding that in conjunction with cooperative communication techniques builds the necessary diversity to achieve the target reliability. The proposed protocol, XOR-CoW, is analyzed by using a communication theoretic delay-limited-capacity framework and compared to different realizations of previously proposed protocols without network coding. The results show that as the network size or payload increases, XOR-CoW gains advantage in minimum SNR to achieve the target latency. For a scenario inspired by an industrial printing application with 30 nodes in the control loop, total information throughput of 4.8 Mb/s, 20MHz of bandwidth and cycle time under 2 ms, the protocol can robustly achieve a system probability of error better than 10~(-9) with a nominal SNR less than 2 dB with Rayleigh fading.

关键词： Cooperative communication network coding Low-latency High-reliability wireless Industrial control Diversity Internet of Things

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network coding Efficiency In The Presence Of An Intermittent Backhaul network

Network Coding Efficiency In The Presence Of An Intermittent...

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Ad-Hoc and Sensor networks Symposium

作者： Stefan Achleitner Thomas La Porta Srikanth V. Krishnamurthy Victor S. Quizhpi Computer Science and Engineering The Pennsylvania State University Computer Science and Engineering University of California Radio Freq. Comm. Division CERDEC United States Army

ISBN: (纸本)9781479966653

In infrastructure-lacking environments, like military areas of operation, the intermittent availability of backhaul networks leads to greater reliance on peer to peer data exchange. In such settings, mobile nodes use Delay Tolerant network (DTN) protocols for exchanging location specific data. High transmission delay, packet loss and intermittent connectivity increases the need for efficient data transmission in such scenarios. In this paper, we evaluate network coding for efficient data exchange between mobile wireless nodes under the presence of an intermittent backhaul network, like a satellite or cellular link. We analyze the upper bound of savings achievable with network coding for single-hop packet transmission, and introduce a network coding algorithm focused on reducing the required number of packet transmissions in such a setting. Evaluation of our proposed data exchange protocol shows how network coding can be applied to reduce transmission delay and minimize the dependency on an intermittent backhaul network in a communication scenario typical of a military environment.

关键词： network coding return stroke Packet transmission Transport delay data transmission presences military areas data exchange

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network coding Based Information Spreading in Dynamic networks With Correlated Data

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IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS 2015年第2期33卷 213-224页

作者： Cohen, Asaf Haeupler, Bernhard Avin, Chen Medard, Muriel Ben Gurion Univ Negev Dept Commun Syst Engn IL-84105 Beer Sheva Israel Carnegie Mellon Univ Sch Comp Sci Pittsburgh PA 15213 USA MIT Dept Elect Engn Cambridge MA 02139 USA MIT Elect Res Lab Cambridge MA 02139 USA

In this paper, we design and analyze information spreading algorithms for dynamic networks with correlated data. In these networks, either the data to be distributed, the data already available at the nodes, or both are correlated. Moreover, nodes' availability and connectivity is dynamic-a scenario typical for wireless networks. Our contribution is twofold. First, although coding schemes for correlated data have been studied extensively, the focus has been on characterizing the rate region in static networks. In an information spreading scheme, however, nodes may communicate by continuously exchanging packets according to some underlying communication model. The main figure of merit is the stopping time-the time required until nodes can successfully decode. While information spreading schemes, such as gossip, are practical, distributed, and scalable, they have only been studied for uncorrelated data. We close this gap by providing techniques to analyze network-coded information spreading in dynamic networks with correlated data. Second, we give a clean framework for oblivious dynamic network models that in particular applies to a multitude of wireless network and communication scenarios. We specify a general setting for the data model and give tight bounds on the stopping times of network-coded protocols in this wide range of settings. En route, we analyze the capacities seen by nodes under a network-coded information spreading protocol, a previously unexplored question. We conclude with extensive simulations, clearly validating the key trends and phenomena predicted in the analysis.

关键词： Dynamic networks information dissemination spreading gossip network coding correlated data

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network coding for energy efficiency in bypass IP/WDM networks

Network coding for energy efficiency in bypass IP/WDM networ...

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International Conference on Transparent Optical networks

作者： Mohamed O. I. Musa Taisir E. H. El-Gorashi Jaafar M. H. Elmirghani School of Electronic and Electrical Engineering University of Leeds United Kingdom

ISBN: (纸本)9781509014682

network coding has been proven to be an effective approach towards achieving the network capacity and resources efficiency. However, most of the work achieved has been under the umbrella of wireless networks. In this paper we investigate the use of network coding to improve energy efficiency of the IP/WDM optical core considering unicast traffic flows by implementing coding at the optical layer of intermediate nodes. The mixed integer linear programming results show that network coding can improve the energy efficiency by up to 28% on the NSFNET compared to conventional non-bypass approach. The results show that the network coded bypass approach also outperforms the conventional bypass approach.

关键词： network coding Power demand Transponders Energy efficiency Optical fibers IP networks

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network coding Function Virtualization

Network Coding Function Virtualization

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IEEE International Workshop on Signal Processing Advances in Wireless Communications

作者： Tan Do-Duy M. A. Vazquez-Castro School of Engineering Autonomous University of Barcelona Spain

ISBN: (纸本)9781509017508

network Function Virtualization (NFV) and network coding (NC) have attracted much attention in recent years as key concepts for 5G networks to provide flexibility and substantial gains in throughput and reliability, respectively. In this paper, we propose the integration of NC and NFV architectural designs. Specifically, a toolbox of NC functionalities are identified so that NC can be designed as a virtual network function that provides flow engineering functionalities to the network. In order to do so we first identify NC layer-independent architectural design domains, which we then map to the NFV framework. Our resulting virtual network coding functionality (VNCF) can be used by the network to engineer the throughput and reliability of multiple information network flows depending on the ultimate service operational intent. We apply our proposed VNCF to a study case where the network uses databases with geo-tagged link statistics on the wireless highways created by percolation to engineer information flows. Our results provide a two-fold validation of our proposal. First, we show how VNCF allows the network to have full control over the throughput, reliability and connectivity up to theoretical limits. Second, we show how NCF virtualization (NCFV) allows the same functionality to apply over different underlying physical networks, including satellite or hybrid thus enabling softwarization and rapid innovative deployment.

关键词： Virtualization Protocols Virtualization protocols Numerical controls Nelfinavir Throughput Virtual networks network coding full control Building design

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network coding and MPTCP in satellite networks

Network coding and MPTCP in satellite networks

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Advanced Satellite Mobile Systems (ASMS)

作者： Giovanni Giambene Doanh Kim Luong Van Anh Le Muhammad Muhammad Department of Information Engineering and Mathematical Sciences University of Siena Siena Italy

Satellite networks are expected to support multimedia traffic flows, offering high capacity with QoS guarantees. This paper deals with Multipath-TCP (MPTCP), which exploits multiple TCP connections using different paths in order to improve user's throughput. In this study, MPTCP is combined with network coding to protect TCP transmissions from packet losses caused by ON/OFF channels in mobile satellite systems. A novel scheme, named Path-Based network coding for MPTCP (PBNC-MPTCP), has been proposed that applies Pseudo Random network coding (PRNC) to sub-flows, where the encoded packets of a block are sent on different paths in order to exploit path diversity. We have evaluated the PBNCMPTCP performance by means of Ns-2 simulations, showing that PBNC-MPTCP outperforms other schemes in the literature that combine MPTCP with network coding.

关键词： Satellites network coding Encoding Mobile communication Packet loss Communication channels

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network coding for reliable downlink transmissions in industrial wireless sensor and actuator networks

Network coding for reliable downlink transmissions in indust...

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International Symposium on Wireless Communication Systems (ISWCS)

作者： Jing Yue Svetlana Girs Johan Åkerberg Mats Björkman Zihuai Lin School of Electrical and Information Engineering The University of Sydney Australia School of Innovation Design and Engineering Mälardalen University Sweden ABB AB Corporate Research Sweden Malardalens Hogskola Vasteras SE

Benefits, such as significant reduction of cost and complexity, brought by wireless communication make wireless networks more and more appealing for industrial applications. However, before wireless systems can be deployed in industrial networks, strict industrial requirements on reliability and timeliness must be fulfilled and thus protocols increasing the performance of wireless communication are needed. Data in industrial systems is typically transmitted in two directions: from sensor nodes to a controller (uplink transmission) and from the controller to actuators (downlink transmission). Several previous studies have looked at possibilities of performance increase in uplink transmissions from the sensors, while not that much work focused on downlink transmissions, which are equally important. Thus, this paper addresses the downlink transmission scenario and presents a new protocol introducing network coding into packet forwarding scheme. Simulation results show that packet reception rate can be increased when network coding is applied.

关键词： Actuators Reliability Downlink Wireless communication Relays Protocols network coding

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network coding techniques for VANET advertising applications

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EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND networkING 2015年第1期2015卷 1-13页

作者： Ahmed, Shereen A. M. Ariffin, Sharifah H. S. Fisal, Norsheila Univ Teknol Malaysia UTM MIMOS Ctr Excellence Telecommun Technol Fac Elect Engn Utm 81310 Kagawa Malaysia

network coding is an emerging technique known to improve the network performance in many aspects. In Vehicular Ad-hoc networks (VANET), the bandwidth is considered to be one of the most important network resources. In this paper, we propose a network coding technique to improve the bandwidth utilization for non-safety applications in VANET. In a scenario where there are two sources broadcasting the data into the same area at the same time, the relay will use the network coding technique to decrease the number of rebroadcasting events and the consumption of the bandwidth, However, a fundamental problem for the relay when it receives a packet, is whether to wait for a coding opportunity and save the bandwidth or send the packet directly and reduce the delay. In order to address such tradeoff, we introduce two versions of our protocol, namely buffer size control scheme (BSCS) and time control scheme (TCS);by both versions we aim to control the delay that is experienced by the packet at each hop, while achieving better bandwidth utilization. Up to 38 % improvement in the bandwidth utilization has been recorded, and both schemes have shown a considerable amount of control on the imposed delay.

关键词： VANET network coding Non-safety applications Comfort applications Broadcasting Routing Data dissemination

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network coding based Content Caching in Hierarchical Cloud Service network for 5G

Network Coding based Content Caching in Hierarchical Cloud S...

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IEEE Global Communications Conference

作者： Bo Feng Lirong Jiang Gang Feng Shuang Qin Yantao Guo Nat. Key Lab. of Sci. & Technol. on Commun. Univ. of Electron. Sci. & Technol. of China Chengdu China Sci. & Technol. on Inf. Transm. & Dissemination in Commun. Networks Lab. Shijiazhuang China

ISBN: (纸本)9781509013296

The next generation mobile network (5G) faces enormous challenges with increasing mobile multimedia and data services. To address the vast data traffic volume and minimize transmission cost, it is imperative to develop efficient content caching strategy, which is deemed as a key technique for 5G. In this paper, we exploit cloud computing and network coding techniques in mobile networks, based on a Hierarchical Cloud Service network (HCSN) architecture, to provision content delivery service on demand. In our proposed content caching framework, cloud service providers deploy a plurality of cloudlets at the edge of network, to fulfill data service requirements by caching and transmission of data content. We design a network coding based Caching Policy (NCCP) based on greedy algorithm. Local cloudlets cache data content in advance, update the cache dynamically and transmit data content in a cooperative way. We use simulation experiments to validate the effectiveness of our proposed caching strategy. Numerical results show that the proposed strategy can significantly improve the cache hit rate as well as reduce average transmission cost in HCSN.

关键词： Caching Cloudlet Mobile networks network coding

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network coding in internet of things

Network coding in internet of things

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IEEE International Workshop on Computer-Aided Modeling, Analysis, and Design of Communication Links and networks, CAMAD

作者： Farzad Amirjavid Petros Spachos Liang Song Konstantinos N. Plataniotis Department of Electrical and Computer Engineering University of Toronto Toronto ON Canada School of Engineering University of Guelph Guelph ON Canada OMESH Networks Inc. Toronto Canada

ISBN: (纸本)9781509025596

Wireless Smart Home Sensor network (WSHSN) is a home-similar environment, where several wireless sensors can observe the home status and transmit the data streams to the Smart Home Information System (SHIS). Communication in Wireless Sensor network (WSN) in small living environments faces noise and data transmission speed problems. Especially in the case of employing mobile agents, the WSN restructures dynamically, hence the network performance reduces dramatically. On the one hand, the Internet of Things (IoT) concept includes a broad application of wireless devices, while on the other hand, the WSN throughput decreases significantly by application of more wireless devices. network coding is a promising technique that can help to broaden the utilization of nodes in WSNs, while network throughput improves by the application of more wireless nodes. In this paper, IoT in WSHSN is modelled as a particular instance of butterfly network and the corresponding network coding based methodology aiming to increase the network throughput is proposed. A case study, supporting the theory of network coding in IoT in small living rooms, is proposed.

关键词： Wireless sensor networks network coding Smart homes Throughput Mobile agents Wireless networks

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