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Mode selection schemes for unicasting device-to-device communications supported by network coding

INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS 2018年第11期31卷 e3594-e3594页

作者： Fodor, Gabor Ericsson Res Stockholm Sweden Royal Inst Technol Stockholm Sweden

Device-to-device (D2D) communication in a cellular spectrum increases the spectral and energy efficiency of local communication sessions, while also taking advantage of accessing licensed spectrum and higher transmit power levels than when using unlicensed bands. To realize the potential benefits of D2D communications, appropriate mode selection algorithms that select between the cellular and D2D communication modes must be designed. On the other hand, physical-layer network coding (NWC) at a cellular base stationwhich can be used without D2D capabilitycan also improve the spectral efficiency of a cellular network that carries local traffic. In this paper, we ask whether cellular networks should support D2D communications, physical-layer NWC, or both. To this end, we study the performance of mode selection algorithms that can be used in cellular networks that use physical-layer NWC and support D2D communications. We find that the joint application of D2D communication and NWC scheme yields additional gains compared with a network that implements only one of these schemes, provided that the network implements proper mode selection and resource allocation algorithms. We propose 2 mode selection schemes that aim to achieve high signal-to-interference-plus-noise ratio and spectral efficiency, respectively, and take into account the NWC and D2D capabilities of the network.

关键词： cellular networks device-to-device communications network coding radio resource management

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Optimization-Based Linear network coding for General Connections of Continuous Flows

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IEEE-ACM TRANSACTIONS ON networkING 2018年第5期26卷 2033-2047页

作者： Cui, Ying Medard, Muriel Yeh, Edmund Leith, Douglas Duffy, Ken R. Shanghai Jiao Tong Univ Shanghai Inst Adv Commun & Data Sci Inst Wireless Commun Technol Dept Elect Engn Shanghai 200240 Peoples R China MIT Dept Elect Engn & Comp Sci Cambridge MA 02139 USA Northeastern Univ Dept Elect & Comp Engn Boston MA 02115 USA Trinity Coll Dublin Dublin Ireland Maynooth Univ Maynooth Kildare Ireland

For general connections, the problem of finding network codes and optimizing resources for those codes is intrinsically difficult and a little is known about its complexity. Most of the existing methods for identifying solutions rely on very restricted classes of network codes in terms of the number of flows allowed to he coded together, and are not entirely distributed. In this paper, we consider a new method for constructing linear network codes for general connections of continuous flows to minimize the total cost of the edge use based on mixing. We first formulate the minimum-cost network coding design problem. To solve the optimization problem, we propose two equivalent alternative formulations with discrete mixing and continuous mixing, respectively, and develop distributed algorithms to solve them. Our approach fairly allows general coding across flows and guarantees no greater cost than existing solutions. Numerical results illustrate the performance of our approach.

关键词： network coding network mixing general connection resource optimization distributed algorithm

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Cooperative Device-to-Device Communication With network coding for Machine Type Communication Devices

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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS 2018年第1期17卷 296-309页

作者： Li, Yue Sun, Kai Cai, Lin Univ Victoria Dept Elect & Comp Engn Victoria BC V8P 5C2 Canada Inner Mongolia Univ Coll Elect Informat Engn Hohhot Peoples R China

With the rapid development of the Internet of Things, it is pressing to improve wireless transmission efficiency, especially for machine type communications, due to the limited wireless spectrum. In this paper, we propose a downlink transmission scheme leveraging cooperative device-to-device (D2D) communications and network coding, which can largely reduce the cellular resource consumption and the total energy consumption. In the proposed scheme, the base station generates and broadcasts linear combinations based on the packets requested by different user equipments (UEs) until at least one mature UE can recover all the original packets. Then, a selected mature UE broadcasts new linear combinations based on the recovered original packets to neighbors via D2D until all UEs can decode their packets. A feasible and backward-compatible system design including the necessary revisions on the protocol stack based on the current cellular system architecture is also provided. Then, the closed-form probability mass functions of transmission times for both cellular and D2D transmissions are derived, where the error rates in both cellular and D2D transmissions have been considered. The feedback load is also analyzed. Simulation results with different block error rate (BLER) settings are given, which can be used as references for the cellular network to decide the target BLER and adapt the modulation and coding.

关键词： Cellular networks D2D communications network coding MTC cooperative communications

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Hybrid network coding Scheme in Cognitive Radio networks with Multiple Secondary Users

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IEEE ACCESS 2018年 6卷 63948-63957页

作者： Mei, Shiji Chen, Bing Hu, Feng Ma, Zhenzhou Nanjing Univ Aeronaut & Astronaut Coll Comp Sci & Technol Nanjing 211106 Jiangsu Peoples R China Aisino Corp Beijing 100195 Peoples R China

In order to realize a variety of intelligent applications, a large number of devices need to collect and transmit potentially large amounts of data through the Internet of Things. However, with the explosive growth of communication devices, spectrum resources are becoming more and more scarce, which in turn makes it impossible to send information in time. Cognitive radio technology is an effective way to resolve spectrum allocation shortages, while the spatiotemporal uncertainty of spectrum has a great influence on the secondary user (SU)'s throughput. In this paper, we investigate the network coding scheme in cognitive radio networks under multiple primary and SU relationships, including non-collaboration, collaboration, and lease. Moreover, we propose a hybrid network coding scheme to improve the utilization efficiency of idle spectrum. In particular, the successful transmission rate and the packet loss rate can be increased and decreased through redundant coding, respectively. The simulation results show that our proposed scheme can achieve a better performance in terms of both delay and throughput than the existing mechanisms.

关键词： network coding cognitive radio network redundant network coding multiple secondary users

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Performance Analysis of Relay-Based Two-Way D2D Communications With network coding

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IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY 2018年第7期67卷 6642-6646页

作者： Huang, Jun Gharavi, Hamid NIST Gaithersburg MD 20899 USA

In this paper, we present an analytical approach to evaluate the performance of dual-hop, two-way, and asymmetric device-to-device (D2D) communications with and without network coding. In our approach, we first establish a relationship between link outage probability (LOP) and packet loss probability (PLP), where PLP is defined as a function of LOP. By distinguishing between two types of probabilities, we then investigate the system throughput and end-to-end packet loss probability (E2EPLP). Our evaluation results reveal that when PLPs of all links along one-way D2D communications are greater or smaller than those of their corresponding links along the other direction, network coding can achieve higher through-put (about 25%), as well as an lower E2EPLP (approximately 10%). We believe that the proposed analytical approach can provide a useful insight into the application of network coding in relay-based D2D networks.

关键词： Relay-based D2D communications network coding link outage probability packet loss probability

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Linear network coding Over Rings - Part II: Vector Codes and Non-Commutative Alphabets

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IEEE TRANSACTIONS ON INFORMATION THEORY 2018年第1期64卷 292-308页

作者： Connelly, Joseph Zeger, Kenneth Univ Calif San Diego Dept Elect & Comp Engn La Jolla CA 92093 USA

In Part I, we studied linear network coding over finite commutative rings and made comparisons to the well-studied case of linear network coding over finite fields. Here, we consider the more general setting of linear network coding over finite (possibly non-commutative) rings and modules. We prove the following results regarding the linear solvability of directed acyclic networks over various finite alphabets. For any network, the following are equivalent: (i) vector linear solvability over some field, (ii) scalar linear solvability over some ring, and (iii) linear solvability over some module. Analogously, the following are equivalent: (a) scalar linear solvability over some field, (b) scalar linear solvability over some commutative ring, and (c) linear solvability over some module whose ring is commutative. Whenever any network is linearly solvable over a module, a smallest such module arises in a vector linear solution for that network over a field. If a network is scalar linearly solvable over some non-commutative ring but not over any commutative ring, then such a non-commutative ring must have size at least 16, and for some networks, this bound is achieved. An infinite family of networks is demonstrated, each of which is scalar linearly solvable over some non-commutative ring but not over any commutative ring. Whenever p is prime and 1 <= k <= 6, if a network is scalar linearly solvable over some ring of size p(k), then it is also k-dimensional vector linearly solvable over the field GF(p), but the converse does not necessarily hold. This result is extended to all k >= 1 when the ring is commutative.

关键词： Linear coding network solvability network coding modules (abstract algebra)

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Optimal and heuristic network coding algorithms for multi-layered video broadcast

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networkS 2018年第1期71卷 51-59页

作者： Berczi-Kovacs, Erika R. Kiraly, Zoltan Eotvos Lorand Univ Dept Operat Res Budapest Hungary Eotvos Lorand Univ Dept Comp Sci Budapest Hungary MTA ELTE Egervary Res Grp Budapest Hungary

In this article we give network coding algorithms for multi-layered video streaming. The problem is motivated by video broadcasting in a communication network to users with varying demands. We give a polynomial time algorithm for deciding feasibility for the case of two layers, and show that the problem becomes NP-hard if the task is to maximize the number of satisfied demands. For the case of three layers we also show NP-hardness of the problem. Finally, we propose a heuristic for three layers and give experimental comparison with previous approaches. (c) 2017 Wiley Periodicals, Inc. networkS, Vol. 71(1), 51-59 2018

关键词： network coding multi-layered video streaming

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Energy efficient power allocation approach to asymmetric analogue network coding with rate-dependent circuit power

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IET COMMUNICATIONS 2018年第18期12卷 2324-2331页

作者： Zheng, Fangyuan Li, Jing Yu, Xiangbin Ge, Jianhua Xidian Univ State Key Lab Integrated Serv Networks Xian 710071 Shaanxi Peoples R China Nanjing Univ Aeronaut & Astronaut Coll Elect & Informat Engn Nanjing 210016 Jiangsu Peoples R China

Energy efficiency (EE) plays an indispensable role in the battery constrained systems. In this study, the EE optimisation problem for asymmetric analogue network coding (ANC) protocol is analysed in a two-way relaying network, where the two sources have different transmission rate requirements. A generalised power consumption model is applied consisting of not only the transmit power and fixed circuit power, but also the most general rate-dependent dynamic circuit power, with which a power allocation problem is formulated to achieve the maximal EE constrained by the rate requirements as well as the total transmit power budget. By exploiting the two-layer optimisation method and non-linear fractional programming theorem, the original EE maximisation problem is solved in an efficient way. Specially, when the rate-dependent circuit power is modelled as the linear function of transmission rate, a closed-form solution is obtained. Through simulations, the proposed power allocation algorithm is verified and the impacts of some system parameters such as relay location, transmit power and transmission rate asymmetry are also provided to gain useful insights, which facilitates the energy-efficient design for the practical asymmetric ANC protocol.

关键词： relay networks (telecommunication) telecommunication power management energy conservation power consumption network coding resource allocation protocols nonlinear programming energy efficient power allocation approach battery constrained systems EE optimisation problem asymmetric analogue network coding protocol two-way relaying network generalised power consumption model fixed circuit power power allocation problem total transmit power budget two-layer optimisation method transmission rate asymmetry energy-efficient design transmission rate requirements general rate-dependent dynamic circuit power asymmetric ANC protocol nonlinear fractional programming theorem EE maximisation problem closed-form solution linear function system parameters

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An NDN IoT Content Distribution Model With network coding Enhanced Forwarding Strategy for 5G

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IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS 2018年第6期14卷 2725-2735页

作者： Lei, Kai Zhong, Shangru Zhu, Fangxing Xu, Kuai Zhang, Haijun Peking Univ Shenzhen Key Lab Cloud Comp Technol Applicat Inst Big Data Technol Sch Elect & Comp Engn Shenzhen 518055 Peoples R China Arizona State Univ Sch Math & Nat Sci Tempe AZ 85281 USA Univ Sci & Technol Beijing Beijing Engn & Technol Res Ctr Convergence Networ Beijing 100083 Peoples R China

The challenging requirements of fifth-generation (5G) Internet-of-Things (IoT) applications have motivated a desired need for feasible network architecture, while Named Data networking (NDN) is a suitable candidate to support the high density IoT applications. To effectively distribute increasingly large volumes of data in large-scale IoT applications, this paper applies network coding techniques into NDN to improve IoT network throughput and efficiency of content delivery for 5G. A probability-based multipath forwarding strategy is designed for network coding to make full use of its potential. To quantify performance benefits of applying network coding in 5G NDN, this paper integrates network coding into a NDN streaming media system implemented in the ndnSIM simulator. The experimental results clearly and fairly demonstrate that considering network coding in 5G NDN can significantly improve the performance, reliability, and QoS. Besides, this is a general solution as it is applicable for most cache approaches. More importantly, our approach has promising potentials in delivering growing IoT applications including high-quality streaming video services.

关键词： Content delivery internet-of-things (IoT) streaming system named data networking (NDN) network coding probability multipath forwarding

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A push-pull network coding protocol for live peer-to-peer streaming

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COMPUTER networkS 2018年第Jan.15期130卷 145-155页

作者： Ayatollahi, Hoda Khansari, Mohammad Rabiee, Hamid R. Sharif Univ Technol Dept Comp Engn Tehran Iran Univ Tehran Fac New Sci & Technol Dept Network Sci & Technol Tehran Iran

In this paper, we propose a new peer-to-peer (P2P) video streaming protocol which presents an implementation of network coding with a new caching mechanism. It employs a push-pull mechanism for sending the video chunks between peers. More specifically, this push-pull mechanism gives priority to the video chunks according to their video layers. The video base layer is transmitted through a pushing mechanism while the enhancement layers employ a pulling mechanism. Moreover, in the network coding algorithm of this protocol, we introduce a caching mechanism to improve the network's performance as well as the video streaming quality. The comprehensive simulations show that the proposed protocol outperforms the traditional random network coding protocol by demonstrating a high improvement in video quality, redundancy of bandwidth usage, and reduction of the average frames loss in various video layers. (C) 2017 Published by Elsevier B.V.

关键词： Peer-to-peer networks network coding Video streaming

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