{"title":"Portable Information Devices - Service Discovery","authors":"J. Kadirire","doi":"10.1109/PORTABLE.2007.17","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.17","url":null,"abstract":"This paper looks at how portable information devices (PIDs) can automatically discover and use services in pervasive computing environments. To realise these ubiquitous computing systems based on federation of services, we implemented a prototype printing service, although the service can be anything that one cares to define. Quite often, PID users receive documents via emails which they can access directly or notification of some documents like word documents or via text messages, or indeed just printing a web page. Their PIDs may not have the capability to download and display those documents online and if they need to read those documents urgently, one possible way is to download and print them in their vicinity. For this to happen, the PIDs need to be able to discover services like a printer service and the Jini technology makes this possible by providing spontaneous networking.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"19 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":"128412751","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}
{"title":"The Selective Receiver Scheme for MIMO","authors":"Lijun Liu, M. Lim","doi":"10.1109/PORTABLE.2007.67","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.67","url":null,"abstract":"In this paper, an efficient selective receiver for multiple-input multiple-output (MIMO) system which exploit beamforming and space-time block coding (STBC) is proposed. This proposed receiver scheme separates the received STBC signals into divided groups. By this way, the interference from the neighboring signals in a same symbol can be eliminated more than half.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"54 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":"115653982","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}
{"title":"Enhancing User Privacy - Location Based Search Using MEMD","authors":"U. Puthiyavan","doi":"10.1109/PORTABLE.2007.16","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.16","url":null,"abstract":"Aim of this paper is to discuss about detection of mobile (cell phone) misplaced in vibration mode. This equipment will be able to detect the mobile phone and produce a beep sound and show the direction in which the phone is present. To detect the mobile device, Incoming mobile signal is used and signal is processed to produce the required output. This device has the capability to shows the direction and aid the user in finding the lost mobile phone. The architecture is flexible to connect and detect the Mobile from Internet by using J2EE technology.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"1 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":"116043508","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}
{"title":"An Embedded Service Platform for the Vehicle Domain","authors":"J. Santa, A. Skarmeta, B. Úbeda","doi":"10.1109/PORTABLE.2007.39","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.39","url":null,"abstract":"Onboard services are becoming the cornerstone in vehicle equipment. Since navigation systems opened the way past decade, location based services (LBS), as well as new multimedia features, are more and more demanded by drivers. Vehicle manufacturers are working in attractive and useful solutions to be included in their cars. However, an important drawback of this development arises in the proliferation of devices in the driver compartment and the lack of a shared communication interface with the exterior. The space in a vehicle is limited and a friendly interface between the driver and the onboard services is needed. Due to these reasons, our work has been directed to develop an open service platform for vehicles with several communications capabilities. An embedded computer is used as the on board unit (OBU), and a multiplatform software architecture has been designed and deployed on it to let the implementation of onboard services. The navigation sensors installed in our prototype vehicle are used to implement location based services, and several network devices cover all connectivity requirements. Specifically, cellular networks are used in a peer to peer (P2P) based network architecture valid for communications among vehicles and between the car and the road infrastructure. In addition, several services have been implemented and tested to probe the feasibility of the whole system.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"13 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":"124124279","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}
R. Prasad, K. Krstovski, F. Choi, S. Saleem, P. Natarajan, M. Decerbo, D. Stallard
{"title":"Real-Time Speech-to-Speech Translation for PDAs","authors":"R. Prasad, K. Krstovski, F. Choi, S. Saleem, P. Natarajan, M. Decerbo, D. Stallard","doi":"10.1109/PORTABLE.2007.23","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.23","url":null,"abstract":"In this paper we present a speech-to-speech translation system configured for translingual communication in English and colloquial Iraqi on a mobile, handheld device. The end-to-end system employs a medium/large vocabulary n-gram speech recognition engine for recognizing English and colloquial Iraqi, a question canonicalizer for mapping a recognized English question or command to one of the questions supported in the system, a concept translation engine for translating recognized Iraqi text, and a text-to-speech synthesis engine for playing back the English translation for the Iraqi to the English speaker. In addition to describing the system architecture and the functionality of the components, we present optimization techniques that enable low-latency, real-time speech recognition on low-power hardware platforms.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"27 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":"123563886","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}
{"title":"Portable Bidirectional Optical Wireless Terminal with Organic Light Emitting Diode Display","authors":"X. Lin, H. Itoh","doi":"10.1109/PORTABLE.2007.21","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.21","url":null,"abstract":"A portable information terminal can simultaneously display and transmit data/image bidirectionally in an indoor optical wireless communication environment.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"1 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":"130178405","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}
{"title":"Hotspot Preventing Routing Algorithm for Delay-Sensitive Biomedical Sensor Networks","authors":"A. Bag, M. Bassiouni","doi":"10.1109/PORTABLE.2007.30","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.30","url":null,"abstract":"Networks of implanted biomedical sensor nodes promise to give a new direction to medical research. Implanted biosensor nodes are already being used for various medical applications. The in-vivo sensor nodes collect the desired biometric data and communicate the data wirelessly among themselves and with a base station located outside the body. The sensor nodes are equipped with radio transmitters and receivers and hence produce heat while communicating, leading to a rise in the temperature of the nodes. A high temperature of the in-vivo nodes for a prolonged period might damage the surrounding tissues. So a considerable rise in the temperature of the nodes is not desired. For certain delay-sensitive medical applications a large delay in communicating the sensed information to the base-station might also be fatal. In this paper, we propose hotspot preventing routing (HPR) algorithm that reduces the average packet delivery delay in the network of biomedical sensor nodes while preventing the formation of hotspots. The proposed algorithm performs much better in terms of preventing the formation of hotspots and reducing the average packet delivery delay as compared to the shortest hop routing algorithm and the previously proposed thermal aware routing algorithm (TARA).","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"45 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":"132036737","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}
{"title":"Nightmares with Mobile Devices are Just around the Corner!","authors":"Kurt W. Derr","doi":"10.1109/PORTABLE.2007.14","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.14","url":null,"abstract":"Mobile computing devices (MCDs) such as personal digital assistants (PDAs), smart phones, handheld personal computers, and tablet PCs, are proliferating in the marketplace. As MCDs become more powerful and commonplace with ubiquitous connectivity, the line that currently divides these handheld devices from typical network computers will become very unclear. Bluetooth, WiFi, and cellular technologies interconnect mobile devices with other computing devices and represent vectors into the device that may be exploited by malicious persons. A malicious person can theoretically take complete control of a mobile device via wireless and use it for all kinds of illicit purposes. While some malicious codes have been reported in the literature for these devices, it is only a matter of time before these codes become as common on mobile devices as they are on desktop computers. Most people have had an experience with a virus on their desktop PC, but have not had the same experience on their smart phone. This will change. The INL is conducting research into MCD vulnerabilities and countermeasures and has developed a Web-based client server application for tracking this data. These efforts are described in this paper.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"223 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":"132315429","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}
{"title":"A Mechanism for Greediness Management when Streaming Multimedia to Portable Devices","authors":"Edward Casey, Gabriel-Miro Muntean","doi":"10.1109/PORTABLE.2007.58","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.58","url":null,"abstract":"The majority of streaming solutions use rate adaptation based on congestion avoidance mechanisms that try to obtain as much bandwidth as possible from the limited network resources. This is good if we assume that all clients have equal requirements. However, this is rarely the case as devices have unique characteristics (e.g. screen size, screen resolution, location, etc.) that influence streaming related parameters and consequently the experience obtained by the end user. Due to the inherent greediness of streaming protocols and lack of knowledge about the characteristics of the users device, this may result in certain devices receiving higher bandwidth share than they actually need and others not receiving enough, affecting the users perceived quality. Therefore there is a need to allow for client differentiation in order to provide an acceptable service for all clients, taking their device characteristics into account. This paper proposes a greediness control algorithm (GCA), a specially designed application layer solution that tunes the greediness of the multimedia streaming based on client priority, to make more efficient use of the wireless network and increase the overall user perceived quality.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"22 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":"124656972","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}
{"title":"Design and Implementation of a WiFi-Based Local Locating System","authors":"Yibo Chen, Rong Luo","doi":"10.1109/PORTABLE.2007.49","DOIUrl":"https://doi.org/10.1109/PORTABLE.2007.49","url":null,"abstract":"This paper presents the design and implementation of a WLAN based system for locating and tracking receivers inside buildings. It utilizes the WiFi access points existing in most modern office buildings, and is able to track multiple objects simultaneously. Experimental result shows that it provides a locating accuracy of about 5 m under indoor environment.","PeriodicalId":426585,"journal":{"name":"2007 IEEE International Conference on Portable Information Devices","volume":"113 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":"124703170","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}