Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing最新文献_第9页

Energy-aware image aggregation in wireless visual sensor networks 无线视觉传感器网络中的能量感知图像聚合

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032957

Hong-Hsu Yen

{"title":"Energy-aware image aggregation in wireless visual sensor networks","authors":"Hong-Hsu Yen","doi":"10.1109/PACRIM.2011.6032957","DOIUrl":"https://doi.org/10.1109/PACRIM.2011.6032957","url":null,"abstract":"VSN is different from traditional WSN that collect and transmit images/video instead of scalar data to the sink. Images provide richer information than scalar data that enable VSN to be a promising technology on security monitoring and surveillance. Image transmission in VSN is expansive due to its large image size and significant energy consumption. One possible way to reduce the image size is to aggregate the received images on the sensor nodes before transmission. By eliminating the redundant image, image aggregation in VSN could transmit the overlapped region of the images only once to reduce the total energy consumption. However, image aggregation requires image processing at the aggregator node that incurs additional node processing energy. In this paper, we study the energy consumption tradeoff between node image processing and image aggregation. We derive the image aggregation energy consumption model that considers the image processing and image transmission. From the simulation results, image aggregation scheme does help lowering the energy consumption. As compared to the non-aggregation scheme, image aggregation scheme consumes only 46% of the energy consumption. In addition, we also find that the threshold for the number of aggregated nodes. Above this threshold, increasing the number aggregated nodes does not help on reducing the energy consumption. This could help determining the number of aggregated nodes under different degree of aggregation to achieve minimum energy consumption.","PeriodicalId":236844,"journal":{"name":"Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125508883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Square root update acceleration of the EM algorithm in Gaussian mixture processes 高斯混合过程中EM算法的平方根更新加速

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032887

I. Shioya, T. Miura

引用次数: 1

Area spectral efficiency of infrastructure-relay enhanced single-cell wireless systems 基础设施中继增强单蜂窝无线系统的区域频谱效率

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032994

Lei Zhang, Hong-Chuan Yang, M. Hasna

引用次数: 1

Multihop routing and resource allocation for multimedia applications in dynamic spectrum access networks 动态频谱接入网中多媒体应用的多跳路由与资源分配

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032990

Jingkai Su, A. Wyglinski

{"title":"Multihop routing and resource allocation for multimedia applications in dynamic spectrum access networks","authors":"Jingkai Su, A. Wyglinski","doi":"10.1109/PACRIM.2011.6032990","DOIUrl":"https://doi.org/10.1109/PACRIM.2011.6032990","url":null,"abstract":"In this paper, we propose a distributed routing mechanism in dynamic spectrum access (DSA) networks based on a pricing mechanism, in which each node put prices on their relaying services and adjust the price according to the interference condition and the spectrum availability. The proposed mechanism tries to provide required bandwidth for multimedia transmissions in DSA networks. DSA networks employing cognitive radios enable agile transmissions and provide additional transmission capacity that would otherwise be unavailable. Although the technologies applied in DSA networks provide more information than traditional contention-based networks, conventional resource allocation mechanisms cannot fully use these measurements from the MAC layers to regulate the network. The interference pattern in distributed DSA networks is also not the same as it is in contention-based TDMA networks. Consequently, spectrum allocation mechanisms must cooperate with routing algorithms in order to adapt to the rapidly varying environment of distributed wireless networks. Routing decision is made based on the price offered and price for relaying. Resources are allocated during the routing process according to interference predictions based on spectrum measurements. Simulation results show that the proposed approach increased the throughput of the network by approximately 100% in heavy traffic situation relative to an AODV based direct resource allocation approach.","PeriodicalId":236844,"journal":{"name":"Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125479161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

On the performance of AF opportunistic relaying with adaptive transmission over Rayleigh fading channels 瑞利衰落信道中自适应传输AF机会中继性能研究

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032888

M. Torabi, D. Haccoun, J. Frigon

引用次数: 8

A new method for classification of events in noisy hydrophone data 噪声水听器数据中事件分类的新方法

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032972

F. Sattar, P. Driessen, G. Tzanetakis, W. Page

引用次数: 4

Vector image retrieval based on approximation of Bezier curves with line segments 基于线段逼近贝塞尔曲线的矢量图像检索

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032932

Ryosuke Fujita, Takahiro Hayashi

引用次数: 6

Hybrid temporal/spatial error concealment strategy robust to scene transitions 对场景转换具有鲁棒性的混合时空错误隐藏策略

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032929

A. Midya, S. Sengupta

引用次数: 7

Matching 3D objects using principle curvatures descriptors 使用曲率描述符匹配三维物体

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032935

M. Mousa

引用次数: 3

3D object compression using enhanced stripification technique 使用增强条纹化技术的3D对象压缩

Proceedings of 2011 IEEE Pacific Rim Conference on Communications, Computers and Signal Processing Pub Date : 2011-10-03 DOI: 10.1109/PACRIM.2011.6032936

Fatma Khairy, M. Mousa, H. Nassar, M. S. Yasein

引用次数: 1