2007 IEEE International Conference on Portable Information Devices最新文献_第5页

Integrated Proton Exchange Membrane Micro Fuel Cells Towards Low Power Wireless Sensor Network Applications 集成质子交换膜微型燃料电池在低功耗无线传感器网络中的应用

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.38

Zhiyong Xiao, C. Feng, P. Chan, Ming Hsing

引用次数: 7

Battery Exhaustion Attack Detection with Small Handheld Mobile Computers 电池耗尽攻击检测与小型手持移动计算机

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.35

T. Buennemeyer, M. Gora, R. Marchany, J. Tront, Bradley

引用次数: 43

Proximity Motion Detection Using 802.11 for Mobile Devices 使用802.11移动设备的接近运动检测

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.7

Y. Nishida

{"title":"Proximity Motion Detection Using 802.11 for Mobile Devices","authors":"Y. Nishida","doi":"10.1109/PORTABLE.2007.7","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.7","url":null,"abstract":"The market for 802.11 based wireless LAN technology has matured greatly in recent years and it is now being used in homes, offices, cafes, airports, and even in hot spots in urban areas. Each 802.11 frame transmitted from 802.11 equipped devices contains information on signal strength and noise. By measuring the signal strength information included in frames sent from a fixed node to a mobile node, it is possible to approximate the distance between the fixed and mobile node. However, as many research papers pointed out, positioning based on received signal strength is difficult, since 802.11 is very susceptible to the effects of various factors, such as reflection or attenuation of the signals. In this paper, we take into account these behavioral characteristics of 802.11 and propose a different approach, where instead of trying to estimate the exact location of a mobile node, we only try to detect incoming movement or access within a given proximity range. Since most recent mobile devices available in the market incorporate or have the capability to add-on 802.11 technologies, mobile users can utilize motion sensing applications without relying on other technologies such as RF-tags or infrared.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128851761","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: 5

EM Radiation Analysis of Electrical Dipole in Close Vicinity of Dissipative Object 耗散物体附近电偶极子的电磁辐射分析

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.26

J. Bartolić, Z. Šipuš, S. Škokić, T. Debogovic, D. Crnogorac

引用次数: 3

Aimulet: Stoic Information Terminal for Location-Based User Supporting Systems Aimulet:基于位置的用户支持系统的静态信息终端

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.59

H. Itoh, X. Lin, R. Kaji, T. Niwa, K. Hashida, K. Kosugi, K. Takizawa

引用次数: 1

Multicast Complement for Efficient UPnP Eventing in Home Computing Network 家庭计算网络中高效UPnP事件的组播补充

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.68

Chih-Lin Hu, Yen-Ju Huang, Wei-Shun Liao

引用次数: 8

What Where Wi: An Analysis of Millions of Wi-Fi Access Points What Where Wi:对数百万Wi- fi接入点的分析

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.45

Kipp Jones, Ling Liu

{"title":"What Where Wi: An Analysis of Millions of Wi-Fi Access Points","authors":"Kipp Jones, Ling Liu","doi":"10.1109/PORTABLE.2007.45","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.45","url":null,"abstract":"With the growing demand for wireless Internet access and increasing maturity of IEEE 802.11 technologies, wireless networks have sprung up by the millions throughout the world as a popular means for Internet access. An increasingly popular use of Wi-Fi networking equipment is to provide wireless 'hotspots' as the wireless access points (APs) to the Internet. These APs are installed and managed by individuals and businesses in an unregulated manner -allowing anyone to install and operate one of these devices using unlicensed radio spectrum. This has allowed literally millions of these APs to become available and 'visible' to any interested party who happens to be within range of the radio waves emitted from the device. As the density of these APs increases, these 'beacons' can be put into multiple uses. From home networking to wireless positioning to mesh networks, there are more alternative ways for connecting wirelessly as newer, longer-range technologies come to market. This paper reports an initial study that examines a database of over 5 million wireless access points collected through systematic wardriving by Skyhook Wireless. By performing the analytical study of this data including the default naming behavior, movement of access points over time, and density of access points, we found that the AP data, coupled with location information, can provide a fertile ground for understanding the \"what, where and why\" of Wi-Fi access points. More importantly, the analysis and mining of this vast and growing collection of AP data can yield important technological, social and economical results.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122032744","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: 87

Multi-Radio Support on Asynchronous Processor Cores: A Design Methodology Approach for Cognitive Radios 异步处理器核上的多无线电支持:一种认知无线电的设计方法

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.72

D. Guha, T. Srikanthan

{"title":"Multi-Radio Support on Asynchronous Processor Cores: A Design Methodology Approach for Cognitive Radios","authors":"D. Guha, T. Srikanthan","doi":"10.1109/PORTABLE.2007.72","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.72","url":null,"abstract":"It has only been very recently that commercial asynchronous processors on FPGAs have started to take shape, and much of the design details of the architecture prototypes are not publicly available. Programming description languages and CAD tools for asynchronous design are still maturing, and there are different languages like CSP, Tangram, OCCAM, Verilog+, etc., which are difficult to port to different asynchronous target architectures. The on-going research on multi-radio realization on asynchronous microprocessors (that do not run an operating system) focuses on a custom-instruction based hybrid optimality structure involving a combination of STAPL (single track handshake asynchronous pulse logic) circuits and QDI (quasi-delay insensitive) circuits design styles which are fundamentally different in implementation character. Compiling different description languages dynamically run-time on reconfigurable asynchronous targets where the target architectures might themselves morph based on the processed data (an embodiment of multimedia information systems for ultra-low power and battery conserving constrains), is currently difficult to realize in an optimal manner. This work-in-progress paper attempts to describe a design proposal that extends the Microsoft Phoenix compiler framework to include asynchronous instruction set targets and aims at extending the functionality of asynchronous processors to support mobile computing and development of future multimedia information systems.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"386 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120929954","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: 1

Recent Advances and Future Trends of the Multimode Wireless Terminal 多模无线终端的最新进展和未来趋势

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.69

Xuejun Zhang

引用次数: 4

Design of a Radio-Frequency Multiplexer, Used in Radiolocation of 802.11 Wireless Sources 一种用于802.11无线源无线定位的射频复用器设计

2007 IEEE International Conference on Portable Information Devices Pub Date : 2007-05-25 DOI: 10.1109/PORTABLE.2007.42

D. Antolovic, S.S. Wallace

引用次数: 6