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Exact potential game based power control with QoS provisioning in two-tier femtocell networks

Exact potential game based power control with QoS provisioni...

引用

International Symposium on Wireless Personal Multimedia Communications (WPMC)

作者： Fengchao Fu Zhaoming Lu Xiangming Wen Wenpeng Jing Zhicai Zhang Zhengfu Li Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing

ISBN: (纸本)9781479964123

In this paper, we investigate the power control problem in the uplink of spectrum-sharing femtocell networks with delay quality of service (QoS) guarantees. Due to the time-varying nature of wireless channels, deterministic QoS is hard to be guaranteed in wireless networks. By integrating information theory with the principle of effective capacity (EC), we formulate an interference-aware power control problem with statistical QoS provisioning. To solve the problem, we firstly model the optimization problem as an exact potential game. Specially, a channel quality related pricing mechanism is presented to mitigate co-tier interference. Then the existence and uniqueness of Nash Equilibrium (NE) point is studied. Finally, a distributed optimal power control algorithm is proposed to implement the game. Simulation results indicate that the proposed algorithm greatly improves EC of all femtocell user equipments (FUE).

关键词： Games Interference Delays Quality of service Power control Femtocell networks Wireless communication

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Comparative analysis on fading characteristics of the LTE-R channel in viaduct and hilly terrain scenarios

Comparative analysis on fading characteristics of the LTE-R ...

引用

International Symposium on Wireless Personal Multimedia Communications (WPMC)

作者： Xiangli Lin Chunxiu Xu Siyu Zhang Ruojun Zhao Xiang Xiao Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing Beijing CN Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing Peoples Republic of China

Long Term Evolution (LTE) system used in High-Speed Railway (HSR) has gained the increasing attention therefore the measurements and analysis of the broadband wireless channel for the HSR communication is urgently needed. This paper focuses on the special fading characteristics of viaduct and hilly terrain scenarios based on the extensive and practical multiple input multiple output (MIMO) measurements which is conducted on Harbin-Dalian passenger dedicated railway line at 2.6 GHz with a bandwidth of 40 MHz. Here, we provide the power delay profiles as the first analytical results. Large-scale fading parameters such as path loss and shadow fading are given and discussed. As for small-scale fading, two similar but not identical K-factor models in different scenario are presented for comparison. Through the analysis on the two typical scenarios, this paper provides great guiding significance for promoting evaluation, simulation and design of the wireless communication system based on Long Term Evolution Railway (LTE-R).

关键词： Fading Loss measurement Wireless communication Delays Area measurement Rail transportation Measurement uncertainty

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A bi-direction hybrid routing algorithm in Mobile Hybrid Wireless networks

A bi-direction hybrid routing algorithm in Mobile Hybrid Wir...

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10th International Conference on Wireless Communications, networking and Mobile Computing (WiCOM 2014)

作者： Xiaolong Li Jianjun Hao Yijun Guo Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Post and Telecommunications China

ISBN: (纸本)9781510804166

In this paper, we propose an efficient routing algorithm based on AODV for the Mobile Hybrid Wireless networks (MHWNs), which consists of the mobile ad hoc networks (MANETs) and an infrastructure wireless networks (such as cellular networks). In MANETs, the performance of the networks has been greatly challenged by the mobility from nodes and link state changes, while the link in cellular networks remains stable link with the mobile stations. This algorithm for routing construction takes advantage of the features of MHWNs, such as hybrid radio channels and nodes heterogeneity, to accomplish the bi-direction routing discovery on demand. Our results show that the performance of MHWNs is improved in the time and overhead for route path discovery process the under our bi-direction route algorithm.

关键词： AODV Bi-Direction MHWNs Routing Algorithm Routing algorithms Wireless networks AODV Cellular networks Mobile ad hoc networks HYBRID Hybrid electric vehicles Ganglia

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Bipartite network based multi-cell clustering scheme in randomly located CoMP systems

Bipartite network based multi-cell clustering scheme in rand...

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IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)

作者： Bo Li Tiankui Zhang Zhimin Zeng Beijing Key Laboratory of Network system Architecture and Convergence Beijing University of Posts and Telecommunications China

Coordinated multiple point transmission (CoMP) technology becomes popular due to its potential for improving the performance of cell-edge UEs who undergo strong inter-cell interference (ICI). To fully exploit the potential CoMP gain, the appropriate method to converge cells into cluster is a prerequisite. However, the majority of existing research are based on theoretical hexagonal cell grid model solely. In this paper, a CoMP multi-cell clustering scheme which considers randomly located cellular network is proposed. In randomly located cells model, the layout of cells and UEs are generated via a Poisson Point Process (PPP). The proposed clustering scheme takes full account of both ICI suffered by UEs and cells distribution, by mapping the CoMP network onto a bipartite network, in which two types of nodes represent cells and UEs respectively, while edges are quantified to denote the channel gain. Meanwhile a projection method is introduced to project the bipartite network onto a Euclidean space where distance between UEs and cells is easily calculated. Finally the efficient K-mean method is utilized to extract nearby UEs and cells out of the space and form the clusters. The proposed scheme hardly incurs extra overheads since only UE's large scale fading information is required. The simulation results demonstrate a considerable throughput gain attained by UEs over comparing algorithm.

关键词： Throughput Computer architecture Microprocessors Interference Fading Complexity theory Layout

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A novel SER and PAPR reduction scheme for Complex Field network Coding

A novel SER and PAPR reduction scheme for Complex Field Netw...

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10th International Conference on Wireless Communications, networking and Mobile Computing (WiCOM 2014)

作者： Pan Li Jianjun Hao Yijun Guo Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications China

ISBN: (纸本)9781510804166

For multi-source relay-based cooperative communications, it is widely believed that Complex Field network Coding (CFNC) achieves better throughput performance than Physical-layer network Coding (PNC). However, traditional CFNC schemes suffer a considerable loss on the performance of symbol to error ratio (SER) and peak-toaverage power ratio (PAPR) as the number of source nodes increases. In this paper, to tackle this problem in some extent, a novel CFNC scheme, which comprises of two SER and PAPR reduction algorithms, is proposed and analyzed. Particularly, by optimizing the complex coefficient vector at the source nodes at first, the performance of SER is improved; while by shrinking the amplitude of some signals selectively, the PAPR at the destination nodes is reduced. Simulations are provided to validate our analytical results. From the simulation results, it is observed that the proposed CFNC scheme significantly improves the performance of SER and PAPR.

关键词： CFNC Complex Coefficient PAPR SER Selective Shrinkage SAFETY EVALUATION REPORT Peak to average power ratio network coding

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Thyristor model development for low impedance load pulse generator simulation

Thyristor model development for low impedance load pulse gen...

引用

IEEE International Conference on Plasma Science (ICOPS)

作者： M. B. Walls A. Fierro J. Dickens J. Mankowski A. Neuber Beijing University of Posts and Telecomunications Beijing Key Laboratory of Network System Architecture and Convergence Beijing China

Many thyristor models exist that are either impractical to implement in a SPICE simulator, or do not model transient turn-on performance accurately. An empirical SPICE model is developed for thyristors to model turn-on performance. Silicon Power's CCS SC 14N40 is selected for simulation. The process of model determination is detailed and simulation results are compared to experiments.

关键词： Integrated circuit modeling Thyristors Load modeling Resistance SPICE Capacitors Discharges (electric)

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A QoE-oriented cross-layer resource allocation scheme for mobile service over Open Wireless network

A QoE-oriented cross-layer resource allocation scheme for mo...

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International Symposium on Wireless Personal Multimedia Communications (WPMC)

作者： Mingfei Wan Zhaoming Lu Luhan Wang Xiuyan Xia Xiangming Wen Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing China

ISBN: (纸本)9781479964123

This paper proposes a Quality of Experience (QoE)-oriented cross-layer resource allocation scheme for mobile service over Open Wireless network (OWN). We adopt a mapping model between service rate and Mean Opinion Score (MOS) for BestEffort services. In addition, we adopt an efficient and low complexity algorithm calling Fast Structural SIMilarity (FSSIM), which can assess the quality of video with much better prediction performance than Peak Signal-to-Noise Ratio (PSNR). We map the FSSIM into MOS by using a mapping model. The cross-layer architecture presented in this paper jointly optimizes the Application (APP) layer, the Media Access Control (MAC) layer and the Physical (PHY) layer of the wireless protocol stack. On the basis of this architecture and the MOS of mobile services, we utilize the Binary Constrained Particle Swarm Optimization (B_CPSO) method to solve the cross-layer resource allocation problem. Simulation results show that the proposed scheme significantly outperforms the traditional scheduling scheme in terms of maximizing user-perceived quality as well as maintaining fairness among users.

关键词： Resource management Streaming media Wireless networks Throughput Computer architecture PSNR

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A real-time top-k query algorithm and parallelized implementation

A real-time top-k query algorithm and parallelized implement...

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IEEE International Conference on Cloud Computing and Intelligence systems (CCIS)

作者： Yao Lu Jun Liu Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing China

ISBN: (纸本)9781467369541

The analysis of data streams is of great value in many fields such as network monitoring and sensor instrumentation. As a common operation, top-k query over data stream is the basis and core of other problems in data stream analysis. In this paper, we introduce a parallel algorithm based on Frequent algorithm and implement it by utilizing Apache Storm. Further, we evaluate the algorithm by estimated error under various situations and show that the algorithm can effectively improve the precision of top-k query by adjusting the parallel degree. The parallelized implementation is of significance in network traffic monitoring.

关键词： Instruments Storms Radiation detectors Hardware Fasteners Australia Process control

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Analysis of network node behavior based on MapReduce

Analysis of network node behavior based on MapReduce

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IEEE International Conference on Cloud Computing and Intelligence systems (CCIS)

作者： Gang He Peng Yang Xiaochun Wu Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing China

ISBN: (纸本)9781467369541

With the widespread popularity and rapid development of Internet, the network is becoming more complex. Analysis of network node behavior can be crucial for network management and service provisioning. In this paper, we conduct the detailed measurement analysis of the network node (NN) traffic characteristics based on a large-scale data set collected from an enterprise network traffic monitoring device, which is deployed at the entry of enterprise network covering the Guangdong province in China. We analyze the distribution of NN traffic volume and visitor number. We discuss the rank of NN in terms of traffic volume distribution and visitor number distribution, which follows power law distribution. Furthermore, we illustrate the traffic characteristics of NN in terms of visitor number. To handle the problem of big data processing, we make use of Hadoop framework and MapReduce programming model to analyze huge traffic data, which handles a large collection data efficiently and quickly for scalable storage and analysis. Thus, in this paper, we propose a network traffic analysis method based on MapReduce in enterprise internet.

关键词： Artificial neural networks Telecommunication traffic Internet Monitoring Programming Probes Distributed databases

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An Abnormal network Behavior Detection system Based on Compound Session

An Abnormal Network Behavior Detection System Based on Compo...

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International Conference on Intelligent Human-Machine systems and Cybernetics, IHMSC

作者： Gang He Xiaochen Liu Xiaochun Wu Decheng Yu Beijing Key Laboratory of Network System Architecture and Convergence Beijing University of Posts and Telecommunications Beijing China

ISBN: (纸本)9781479949540

In recent years, with the rapid development of the Internet on a global scale and the prompt popularization of various App applications, the Internet is increasingly becoming an integral part of people's lives. Meanwhile various network problems caused by abnormal network behavior have become more prominent than any time before. Furthermore we also have a lot of personal information on the Internet, which will bring us significant losses if are gave away. For that, to find an effective method to detect the abnormal network behavior is becoming more and more important. This paper first introduces a new detection method based on compound session, and then shows the effectiveness of the proposed method. A further objective of this method is to identify the infected host.

关键词： Data processing Internet Telecommunication traffic Data acquisition Probes Ports (Computers) Standards

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