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Generalized geometry-based optimal power control in wireless networks

Generalized geometry-based optimal power control in wireless...

2012 9th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks, SECON 2012

作者： Wang, Wei Shin, Kang G. Zhang, Zhaoyang Wang, Wenbo Peng, Tao Department of Information Science and Electronic Engineering Zhejiang Provincial Key Laboratory of Information Network Technology Zhejiang University Hangzhou 310027 China Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI 48109-2121 United States Wireless Signal Processing and Networking Lab Beijing University of Posts and Telecommunications Beijing 100876 China

ISBN: (纸本)9781467319058

Geometry-based optimal power control was proposed in [14] to transform the power-control problem to a new geometrical problem on the position relationship between a line and some points. This scheme provides a novel visual perspective and lowers the complexity of optimization. We generalize this scheme to a larger class of power-control optimization problems so as to maximize the network utility with multiple average and peak power constraints in wireless networks. To facilitate the handling of the geometrical model, we define a subset of geometrical models with specified characteristics, called a regular geometrical model, and derive the type of power-control problems eligible for the regular geometrical model. For such a type of problems, two strategies are proposed for the construction of the regular geometrical model. Utilizing geometrical properties, we propose a novel geometry-based optimization scheme for the general power-control problem. Its computational complexity is significantly lower than the conventional algorithms. We also provide a further discussion on irregular geometrical model cases. Finally, we provide two examples of deploying the proposed geometry-based power-control scheme. © 2012 IEEE.

关键词： Geometry

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Logic program with prioritized preference

Logic program with prioritized preference

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International Conference on Automatic Control and Artificial Intelligence, ACAI 2012

作者： Wang, Jinxin Zhang, Zhizheng Zhai, Yuqing Gao, Zhiqiang School of Computer Science and Engineering Southeast University Nanjing China Jiangsu Provincial Key Laboratory of Computer Information Processing Technology Suzhou University Suzhou China

ISBN: (纸本)9781849195379

Prioritized preference based decision making is pervasive in real problems solving. We propose a new paradigm of logic programming to handle prioritized preference. The paradigm is interpreted based on answer set semantics. We introduce two semantics to optimize answer sets of the programs. Then, we present the properties of those semantics by investigating their order characterization. Finally, compared with related works, it shows our new paradigm has strong expressive power of preference representation and reasoning.

关键词： Semantics

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An efficient coverage control algorithm for three-dimensional underwater sensor networks

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Advances in information Sciences and Service Sciences 2012年第10期4卷 393-399页

作者： Xiao, Fu Yang, Yang Sun, Li Wang, Ruchuan Nanjing University of Posts and Telecommunications Nanjing 210003 China Provincial Key Laboratory for Computer Information Processing Technology Soochow University Suzhou 215006 China Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Nanjing 210003 China Key Lab of Broadband Wireless Communication and Sensor Network Technology Ministry of Education Nanjing 210003 China

Strategy of sensor nodes deployment is directly related to the cost and performance for underwater wireless sensor networks, which is largely determined the various service-quality improvement of wireless sensor networks. In order to improve the coverage of the target area, this paper presents a distributed algorithm of coverage control. Assume that nodes initially deployed on the surface of the water and can only move in vertical direction in 3-D space, the algorithm is first to control the nodes in-depth and relocate the nodes at different depths, then the nodes continue to adjust their depths until there is no augment for improving their coverage, and to achieve efficient coverage of the three-dimensional sensor networks ultimately. Experimental results show that compared with traditional random deployment method, the proposed coverage control algorithm can improve coverage of network effectively.

关键词： Quality control

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Fuzzy inference mechanism based automatic elastic registration of two-dimensional gel electrophoresis images

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information technology Journal 2012年第1期11卷 20-29页

作者： Pan, Yonghui Deng, Zhaohong Wang, Shitong Gao, Qun Jiangsu Engineering R and D Center for Information Fusion Software Jiangsu Jiangyin 214405 China School of Digital Media Jiangnan University Lihu Avenue 1800 Wuxi Jiangsu 214122 China Provincial Key Laboratory for Computer Information Processing Technology Soochow University Jiangsu Suzhou 215123 China

A key technique for protein analysis is the geometric alignment of two-dimensional polyacrylamide gel electrophoresis (2-D PAGE), i.e., 2-D PAGE image registration. In this study, the adaptability in elastic image registration was emphasized. According to the characteristics of 2-D gel image registration, a fuzzy-inference-rule based flexible model (FIM-FM) is proposed to model the complex transformation between 2-D gel image pairs. By introducing the concept of motion estimation, the parameter learning rules of the proposed model are derived for registration. The experiments show that the proposed algorithm is highly effective for registration of 2-D gel images and is competitive to the existing state-of-the-art algorithms. © 2012 Asian Network for Scientific information.

关键词： Image registration

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A knowledge passing process calculus

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ICIC Express Letters 2012年第1期6卷 85-90页

作者： Qian, Zhongmin Cao, Zining Gao, Zhifeng Lin, Jinxing Department of Computer Science and Technology Nanjing University of Aeronautics and Astronautics No. 29 Yudao Street Baixia District Nanjing 210016 China Provincial Key Laboratory for Computer Information Processing Technology Soochow University No. 1 Shizi Street Suzhou 215006 China National Key Laboratory of Science and Technology on Avionics System Integration Shanghai 200233 China College of Automation Nanjing University of Posts and Telecommunications No. 9 Wenyuan Road Yadongxincheng District Nanjing 210046 China

In MAS (Multi-Agent System), communicating among agents is an important characteristic as it is important in transmitting information among agents, recognizing the status changing, and scheduling and accomplishing cooperation tasks. Different from the research in the field of computer science or others, communicating is to transmit knowledge in MAS. The existed works about transmitting knowledge were seldom. This paper proposed a knowledge passing process calculus based on Robin Milner's CCS and studied its semantic features. This work constructs a fundament for the further developing of MAS formal semantics. © 2012 ISSN 1881-803X.

关键词： Multi agent systems

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Evolutionary modeling approach for crowd animation

Evolutionary modeling approach for crowd animation

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International Conference on computer Science and information processing (CSIP)

作者： Hanchao Yu Hong Liu Xiaopeng Yang School of Information Science and Engineering Shandong Normal University Shandong Provincial Key Laboratory for Distributed Computer Software Novel Technology Jinan China

In order to support generating crowd animation roles automatically based on a 3D animation prototype, an evolutionary modeling approach was proposed. The approach could generate a great deal of 3D animation modelings which were alike in appearance but different in characteristics by deforming the 3D animation prototype. An interactive and adaptive genetic algorithm AIAGA was introduced in this approach. In AIAGA, ACIS rule expressions were expressed by three binary trees, which were used to scale 3D entities unevenly in the x-axis, y-axis and z-axis direction separately. New rule expressions, which were used to generate new modelings by evolving, were generated by selection, adaptive crossover and mutation on binary trees. Experiments in the prototype system developed in this paper show that the proposed approach can effectively support generating a series of 3D animation modelings for crowd animation.

关键词： Adaptation models Switches

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Generalized geometry-based optimal power control in wireless networks

Generalized geometry-based optimal power control in wireless...

引用

IEEE Communications Society Conference on Sensor and Ad Hoc Communications and Networks (SECON)

作者： Wei Wang Kang G. Shin Zhaoyang Zhang Wenbo Wang Tao Peng Department of Information Science and Electronic Engineering Zhejiang Provincial Key Laboratory of Information Network Technology University of Zhejiang Hangzhou China Department of Electrical Engineering and Computer Science University of Michigan Ann Arbor MI USA Wireless Signal Processing and Networking Laboratory Beijing University of Posts and Telecommunications Beijing China

关键词： Optimization Silicon Computational modeling Interference Complexity theory Power control Wireless networks

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An algorithm to find optimal independent spanning trees on twisted-cubes

An algorithm to find optimal independent spanning trees on t...

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2011 4th International Symposium on Parallel Architectures, Algorithms and Programming, PAAP 2011

作者： Wang, Yan Fan, Jianxi Han, Yuejuan School of Computer Science and Technology Soochow University Suzhou 215006 China Provincial Key Laboratory for Computer Information Processing Technology Soochow University China

ISBN: (纸本)9780769545752

Multiple independent spanning trees have applications to fault tolerance and data broadcasting in distributed networks. There is a conjecture on independent spanning trees: any n-connected graph has n independent spanning trees rooted at an arbitrary vertex. The conjecture has been confirmed only for n-connected graphs with n ≤ 4, and it is still open for arbitrary n-connected graphs when n ≥ 5. In this paper, we provide a construction algorithm to find n independent spanning trees for the n-dimensional twisted-cube TN n, where N denotes the number of vertices in TNn. And for n ≥ 3, the height of each independent spanning tree on TNn is n+1. © 2011 IEEE.

关键词： Fault tolerance

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A content-based classified hierarchical vector quantization algorithm for volume compression

Journal of Software

引用

Journal of Software 2011年第2期6卷 322-330页

作者： Zhao, Li-Ping Yue, Guang-Xue Xiao, De-Gui Zhou, Xu Yu, Xiang Yu, Fei School of Mathematics and Information Engineering Jiaxing University Jiaxing Zhejiang China School of Computer and Communication Engineering Hunan University Changsha Hunan China Department of Computer Science and Technology Huaihua University Huaihua China Jiangsu Provincial Key Laboratory for Computer Information Processing Technology Soochow University Soochow China

An improved volumetric compression algorithm is presented in this paper. Histogram technique is used for analyzing the trait of volume data. The volume data is then partitioned into volume bricks which will be classified into two groups, the blocks with meaningless information as one group (also called empty blocks), and those with meaningful information as the other group (also called object blocks). An efficient hierarchical VQ is applied to compress object blocks while for empty blocks, nothing is saved. Compare with analogous Volume Compression algorithm, experimental results demonstrate the proposed algorithm not only can improve the compression rate significantly on the premise of the good quality of reconstruction image, but also can obtain fast decoding speed. © 2011 ACADEMY PUBLISHER.

关键词： Graphics processing unit

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Color reproduction for noisy CFA data using directional cycle-spinning

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Journal of Systems Engineering and Electronics 2011年第3期22卷 528-533页

作者： Weiyu Yu Jing Tian Yonghao Xiao School of Electronic and Information Engineering South China University of TechnologyGuangzhou 510640P.R.China Provincial Key Laboratory for Computer Information Processing Technology School of Computer Science and TechnologySoochow UniversitySuzhou 215006P.R.China School of Electrical and Electronic Engineering Nanyang Technological UniversityNanyang Avenue 639798Singapore

This paper addresses color filter array（CFA） color reproduction problem where the aim is to utilize an image captured by the CFA to produce an image with full color ***,conventional subband synthesis based color reproduction techniques do not consider the noise during image acquisition and assume that the CFA data are *** tackle the noisy CFA data,a novel approach is proposed by inserting a subband denoising scheme into the conventional subband synthesis ***,conventional subband synthesis based techniques exploit the decimated wavelet transform that is not shift-invariant and could result in ringing artifacts in the *** alleviate these artifacts,the directional cycle-spinning（DCS） technique is ***,a new cycle-spinning pattern is proposed according to the sampling pattern of the Bayer CFA *** experiments are conducted to demonstrate that the proposed approach outperforms several approaches.

关键词： color filter array（CFA） cycle-spinning denoising.

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