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ENERGY-SAVING SCHEDULING FOR LTE MULTICAST SERVICES

Journal of Electronics(China) 2013年第5期30卷 423-429页

作者： Deng Keke Wang bin Guo Hui Wang Wennai College of Telecommunications & Information Engineering Nanjing University of Posts and Telecommuni-cations Key Lab of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and Telecommunications

In the Long Term Evolution(LTE)downlink multicast scheduling,Base Station(BS)usually allocates transmit power equally among all Resource Blocks(RBs),it may cause the waste of transmit *** avoid it,this paper put forward a new algorithm for LTE multicast downlink scheduling called the Energy-saving based Inter-group Proportional Fair(EIPF).The basic idea of EIPF is to calculate an appropriate transmitting power for each group according to its data rate respectively,and then follow the inter-group proportional fair principle to allocate RBs among multicast *** results of EIPF simulation show that the proposed algorithm not only can reduce the transmit power of BS effectively but also improve the utilization rate of energy.

关键词： Long Term Evolution(LTE) Downlink scheduling Multicast Energy-saving based Inter-group Proportional Fair(EIPF)

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Coverage Enhancement Strategy Based on Novel Perception and Co-evolution for Multimedia sensor networks

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电子学报(英文版) 2013年第1期22卷 135-140页

作者： XIAO Fu WANG Jing SUN Lijuan WANG Ruchuan GUO Jian College of Computer Nanjing University of Posts and Telecommunications Nanjing 210003 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing 210003 China Key Laboratory of Broadband Wireless Communication and Sensor Network Technology Ministry of Education Nanjing 210003 China Provincial Key Laboratory for Computer Information Processing Technology Soochow University Suzhou 215006 China

Coverage enhancement is one of the hot research topics in wireless multimedia sensor net- works. A novel Coverage-enhancing algorithm based on three-dimensional Directional perception and co-evolution (DPCCA) is proposed in multimedia sensor networks on the basis of the model whose pitch angle and deviation angle can be adjusted. Based on the proposed elliptical cone sensing model, we can derive the coverage area of the node and calculate the optimal pitch angle according the information of monitoring area and the nodes, and then the deviation angle is optimized based on co-evolution al- gorithm, which eliminate the overlapped and blind sensing area effectively. A set of simulations demonstrate the ef- fectiveness of our algorithm in coverage ratio.

关键词：无线多媒体传感器网络网络覆盖协同进化感知增强算法网络工程测量模型

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Trust evaluation in cloud manufacturing environment

Trust evaluation in cloud manufacturing environment

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19th International Conference on Industrial Engineering and Engineering Management: Engineering Economics Management

作者： Gao, Lu Liu, Quan Lou, Ping Hubei Key Laboratory of Broadband Wireless Communication Sensor Network School of Information Engineering Wuhan University of Technology Wuhan China

ISBN: (纸本)9783642384417

As a new manufacturing paradigm, cloud manufacturing transforms the traditional manufacturing business model, in which distributed resources belonged to different enterprises are encapsulated into cloud services. Clients can use cloud services according to their requirements, viz., clients can build up their own ondemand production service networks. However, it is quite difficult for clients to select reliable and high-quality service nodes to organize the production service network because of the existence of malicious, fake, untrue, and dynamic service nodes in the cloud manufacturing environment. The trustworthy cloud manufacturing environment is a prerequisite to implementation of cloud manufacturing. The reliable evaluation for trust works as a compass for building the trustworthy cloud manufacturing environment. In this paper, the trust measurement is discussed in cloud manufacturing environment and the trustworthy environment will be built up with this evaluation mechanism. © Springer-Verlag Berlin Heidelberg 2013.

关键词： Web services

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ENERGY EFFICIENT DISTRIBUTED STEGANOGRAPHY FOR SECURE communication IN wireless MULTIMEDIA sensor networkS

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Journal of Electronics(China) 2013年第1期30卷 9-16页

作者： Lin Qiaomin Wang Ruchuan Ye Ning Wang Zhongqin College of Computer Nanjing University of Posts and Telecommunications Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Key Lab of Broadband Wireless Communication and Sensor Network Technology (Nanjing University of Posts and Telecommunications) Ministry of Education Department of Information Science Nanjing College for Population Management

A secure communication mechanism is necessary in the applications of wireless Multimedia sensor networks (WMSNs), which is more vulnerable to security attacks due to the presence of multimedia data. Additionally, given the limited technological resources (in term of energy, computation, bandwidth, and storage) of sensor nodes, security and privacy policies have to be combined with energy-aware algorithms and distributed processing of multimedia contents in WMSNs. To solve these problems in this paper, an energy efficient distributed steganography scheme, which combines steganography technique with the concept of distributed computing, is proposed for secure communication in WMSNs. The simulation results show that the proposed method can achieve considerable energy efficiency while assuring the communication security simultaneously.

关键词： Discrete Wavelet Transform （DWT） Distributed steganography Energy efficiency Perfect hash wireless Multimedia sensor networks （WMSNs）

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Multipartite entanglement concentration for nitrogen-vacancy center and microtoroidal resonator system

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Chinese Science Bulletin 2013年第28期58卷 3507-3513页

作者： SHENG YuBo LIU Jiong ZHAO ShengYang ZHOU Lan Key Laboratory of Broadband Wireless Communication and Sensor Network Technology Nanjing University of Posts and TelecommunicationsMinistry of Education Institute of Signal Processing Transmission Nanjing University of Posts and Telecommunications College of Mathematics and Physics Nanjing University of Posts and Telecommunications

We describe a high efcient entanglement concentration protocol(ECP)for multi-particle less-entangled nitrogen-vacancy(N-V)center and microtoroidal resonator *** the ECP,we only require one pair of less-entangled state,two auxiliary N-V center in microcavities and some single *** the photon passing through the microcavity,by measuring the polarization of the photon,a maximally entangled W state can be obtained with some success *** ECP does not need to destroy the solid qubit,which makes it more ***,by resorting to more single photons,it can be repeated to reach a high success *** features make this ECP useful in current long-distance quantum communications.

关键词：谐振系统纠缠态空位浓缩远距离量子通信氮成功概率 ECP

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Appearance model based moving object matching across disjoint camera views

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2nd International Conference on Opto-Electronics Engineering and Materials Research, OEMR 2013

作者： Yu, Kong Shuai Hu, Dong Education Ministry's Key Lab of Broadband Wireless Communication and Sensor Network Technology The key lab of image processing and image communications of Jiangsu Province Nanjing University of Posts and Telecom Nanjing 210003 China

ISBN: (纸本)9783037857731

A new object tracking scheme for multi-camera surveillance with non-overlapping views is proposed in this paper. Brightness transfer function (BTF) is used to establish relative appearance correspondence between different views. Mixtures of probabilistic principal component analysis (MPPCA) is incooperated to learn the subspace of brightness transfer function with the concern to deal with multiple different brightness areas in a scene. The incremental major color spectrum histogram (IMCSH) is used as similarity measure for reliable matching. Experimental results with real world videos show the effectiveness of the proposed algorithm. © (2013) Trans Tech Publications, Switzerland.

关键词： Luminance

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AN IDENTITY-BASED key AGREEMENT SCHEME FOR LARGE SCALE sensor networkS

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Journal of Electronics(China) 2013年第6期30卷 574-586页

作者： Yang Lijun Wu Meng Ding Chao College of Computer Science & Technology Nanjing University of Posts and Telecommunications College of Telecommunication & Information Engineering Nanjing University of Posts and Telecommunications Key Laboratory of Broadband Wireless Communication and Sensor Network Technology of Ministry of Education

To solve the problems of high memory occupation, low connectivity and poor resiliency against node capture, which existing in the random key pre-distribution techniques while applying to the large scale wireless sensor networks （WSNs）, an Identity-Based key Agreement Scheme （IBKAS） is proposed based on identity-based encryption and Elliptic Curve Diffie-Hellman （ECDH）. IBKAS can resist man-in-the-middle attacks and node-capture attacks through encrypting the key agreement parameters using identity-based encryption. Theoretical analysis indicates that comparing to the random key pre-distribution techniques, IBKAS achieves significant improvement in key connectivity, communication overhead, memory occupation, and security strength, and also enables efficient secure rekcying and network expansion. Furthermore, we implement IBKAS for TinyOS-2.1.2 based on the MICA2 motes, and the experiment results demonstrate that IBKAS is feasible for infrequent key distribution and rekeying for large scale sensor networks.

关键词： Large scale wireless sensor networks （WSNs） network security key agreement Iden-tity-based cryptography

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Energy-efficient multi-hop routing algorithm based on LEACH

Energy-efficient multi-hop routing algorithm based on LEACH

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6th China Conference of wireless sensor networks, CWSN 2012

作者： Yang, He Xu, Jia Wang, Ruchuan Qian, Liyang College of Computer Nanjing University of Posts and Telecommunications Nanjing 210003 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing University of Posts and Telecommunications Nanjing 210003 China Key Lab. of Broadband Wireless Communication and Sensor Network Technology Ministry of Education Nanjing University of Posts and Telecommunications Nanjing 210003 China

ISBN: (纸本)9783642362514

In order to reduce network energy consumption and prolong the lifetime of wireless sensor networks, this paper improves the LEACH to an energy efficient multi-hop routing algorithm. LEACH in the cluster creation, data transmission, the update phase of the cluster was modified in proposed algorithm. The algorithm updates the cluster head reasonably and adjusts the structure of the cluster to reduce the energy consumption in cluster establishment phrase. In data transmission, it lowers energy consumption by inter-cluster and intra-cluster multi-hop transmission. The simulation runs the algorithm on NS2. The results show that the new algorithm's effectiveness in reducing energy consumption by comparing it with LEACH, LEACH-C,DEEUC. © 2013 Springer-Verlag.

关键词： Routing algorithms

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Mobile agent based coding aware multipath routing for wireless sensor network

Mobile agent based coding aware multipath routing for wirele...

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6th China Conference of wireless sensor networks, CWSN 2012

作者： Shao, Xing Wang, Ruchuan Lin, Qiaomin Huang, Haiping College of Computer Nanjing University of Posts and Telecommunications XinMoFan Road.66 210003 Nanjing China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks XinMoFan Road.66 210003 Nanjing China Key Lab. of Broadband Wireless Communication and Sensor Network Technology XinMoFan Road.66 210003 Nanjing China

ISBN: (纸本)9783642362514

This paper presents an Mobile Agent based Coding Aware Routing (MA-CAMR) for wireless sensor network, which exploits mobile agent to discovery the routing and coding opportunities, reducing complexity of node design. Besides, the general network coding condition of two cross flows is proposed for coding opportunity discovery. In addition, a novel routing metric, Coding and Energy Aware Routing Metric (CEARM) is proposed, which considers the coding gain, the load and energy of node. MA-CAMR exploits multipath routing and CEARM to balance the network load and energy consumption. Simulation results demonstrate that MA-CAMR could balance network load and energy consumption, reduce energy consumption, and prolong network lifetime. © 2013 Springer-Verlag.

关键词： Mobile agents

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Compressive fault-tolerance network coding

Compressive fault-tolerance network coding

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2013 IEEE International Conference on Signal Processing, communications and Computing, ICSPCC 2013

作者： Chen, Siguang Wu, Meng Key Lab of Broadband Wireless Communication and Sensor Network Technology of Ministry of Education Nanjing University of Posts and Telecommunications Nanjing China College of Telecommunications and Information Engineering Nanjing University of Posts and Telecommunications Nanjing China

ISBN: (纸本)9781479910274

Because many signals are correlated over temporal domain, this paper proposes a compressive fault telorance network coding scheme for exploring the temporal correlation of signals. This scheme overcomes the drawbacks of network coding theory by injecting the compressed sensing theory into network coding, i.e., the scheme possesses well compression gain. Meanwhile, it can tolerate finite errors and reconstruct the original information with low distortion when the rank of error matrix (induced by errors) is lying in a reasonable bound. Finally, the performance analysis shows that the compressed sensing-based network coding scheme outperforms the conventional network coding scheme with significant improvement in robustness and performance. © 2013 IEEE.

关键词： Fault tolerance

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