Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286956
Liyu You, Kamran Jamshaid
Wireless applications have become an integral part of our everyday lives. In this paper, we focus on novel applications in a home environment utilizing 802.11a/b/g as the underlying network. These networks constitute the foundations of an attractive framework, allowing the users the freedom of mobility coupled with feature-rich functionality. The system includes networked appliances such as refrigerators, ovens, HVAC systems, and personal video recorders (PVR), entertainment systems such as networked DVR, VCR players, and home surveillance and security systems. We assume that the customer has broadband connectivity in general such as xDSL, cable modem, WISP, or ISDN.
{"title":"Novel applications for 802.11x enabled wireless networked home","authors":"Liyu You, Kamran Jamshaid","doi":"10.1109/CCNC.2004.1286956","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286956","url":null,"abstract":"Wireless applications have become an integral part of our everyday lives. In this paper, we focus on novel applications in a home environment utilizing 802.11a/b/g as the underlying network. These networks constitute the foundations of an attractive framework, allowing the users the freedom of mobility coupled with feature-rich functionality. The system includes networked appliances such as refrigerators, ovens, HVAC systems, and personal video recorders (PVR), entertainment systems such as networked DVR, VCR players, and home surveillance and security systems. We assume that the customer has broadband connectivity in general such as xDSL, cable modem, WISP, or ISDN.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"49 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115378669","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286829
Daniel Kraft, G. Schäfer
We propose a concept for realizing access control in mobile ad-hoc networks to exclude nodes that do not contribute to the provision of network services from using them. Each node observes the behavior of its neighbors in order to build up opinions about their willingness to take part in different network activities. In turn, service is provided only to nodes that have positive opinions about them. A precondition for assigning opinions to nodes is having a means for authentication; we rely on a web-of-trust structure for this, where all nodes can issue certificates for others after they have verified their identities. A proactive certificate management system makes it possible - as the presented evaluation results show - to find optimal certificate chains between given keys and to retrieve the needed certificates quickly.
{"title":"Distributed access control for consumer operated mobile ad-hoc networks","authors":"Daniel Kraft, G. Schäfer","doi":"10.1109/CCNC.2004.1286829","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286829","url":null,"abstract":"We propose a concept for realizing access control in mobile ad-hoc networks to exclude nodes that do not contribute to the provision of network services from using them. Each node observes the behavior of its neighbors in order to build up opinions about their willingness to take part in different network activities. In turn, service is provided only to nodes that have positive opinions about them. A precondition for assigning opinions to nodes is having a means for authentication; we rely on a web-of-trust structure for this, where all nodes can issue certificates for others after they have verified their identities. A proactive certificate management system makes it possible - as the presented evaluation results show - to find optimal certificate chains between given keys and to retrieve the needed certificates quickly.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"185 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123250004","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286944
M. Maki, O. Shibata, Satoshi Hasako, M. Tokuda
Analysis methods are discussed and used to evaluate the broadband transmission characteristics of the twisted pair cable in the GHz frequency band (e.g., HDMI, IEEE1394, etc.). Aside from the transmission characteristics of the cable used, losses incurred by the interface cards have also to be taken into consideration in the analysis of communication systems, especially for frequencies above 100 MHz.
{"title":"Transmission characteristics of a twisted-pair cable for broadband communications","authors":"M. Maki, O. Shibata, Satoshi Hasako, M. Tokuda","doi":"10.1109/CCNC.2004.1286944","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286944","url":null,"abstract":"Analysis methods are discussed and used to evaluate the broadband transmission characteristics of the twisted pair cable in the GHz frequency band (e.g., HDMI, IEEE1394, etc.). Aside from the transmission characteristics of the cable used, losses incurred by the interface cards have also to be taken into consideration in the analysis of communication systems, especially for frequencies above 100 MHz.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115071859","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286950
A. Scheller, René Stolp, Reinhard Baier
The paper presents the concept of a rule engine as a way of managing the emerging complexity of the interaction between the various home devices. The rule engine is intended to enable end users at home to command and control their environment based on a set of rules. By means of events, conditions and actions, the powerful expressions allow defining rules for any kind of home networking scenario.
{"title":"The power of ruling the future home network","authors":"A. Scheller, René Stolp, Reinhard Baier","doi":"10.1109/CCNC.2004.1286950","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286950","url":null,"abstract":"The paper presents the concept of a rule engine as a way of managing the emerging complexity of the interaction between the various home devices. The rule engine is intended to enable end users at home to command and control their environment based on a set of rules. By means of events, conditions and actions, the powerful expressions allow defining rules for any kind of home networking scenario.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116050645","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286885
P. S. Wyckoff, R. K. Young
Consumer devices operating under Part 15 feature low cost transmitters and receivers which operate in the presence of multi-path propagation. Spread spectrum techniques mitigate multi-path effects or even provide temporal diversity reception while increasing the cost and complexity of Part 15 products. Scale time offset robust modulation, called STORM, is a novel transmitted reference spread spectrum technique that provides non-coherent RAKE performance while using a simple modulator and demodulator architecture. Resolvable multi-path propagation typically improves STORM performance, but, at least, slightly degrades matched filtering performance. STORM is unique because the transmitted reference and modulated signals are relatively time scaled prior to transmission.
{"title":"Comparing STORM and matched filtering for Part 15 indoor multi-path communication channels","authors":"P. S. Wyckoff, R. K. Young","doi":"10.1109/CCNC.2004.1286885","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286885","url":null,"abstract":"Consumer devices operating under Part 15 feature low cost transmitters and receivers which operate in the presence of multi-path propagation. Spread spectrum techniques mitigate multi-path effects or even provide temporal diversity reception while increasing the cost and complexity of Part 15 products. Scale time offset robust modulation, called STORM, is a novel transmitted reference spread spectrum technique that provides non-coherent RAKE performance while using a simple modulator and demodulator architecture. Resolvable multi-path propagation typically improves STORM performance, but, at least, slightly degrades matched filtering performance. STORM is unique because the transmitted reference and modulated signals are relatively time scaled prior to transmission.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129662960","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286878
K. Iigusa, T. Ohira
A new mathematical model of electronically steerable parasitic array radiator (ESPAR) antennas is proposed. The ESPAR antenna is a kind of adaptive array antenna expected to spread as a terminal antenna for home LANs or wireless ad-hoc networks. Parasitic elements loaded with variable-reactance terminations are excited by mutual-coupling, so the current distributions along each wire element are not in the ideal sinusoidal function. To consider the current distributions, an equivalent weight vector (EWV) model is modified by introducing a vector effective length (VEL) for each wire element. The vector effective length of a parasitic dipole can be calculated by the reactance value of the variable reactor loading the dipole. The directivity of ESPAR antennas can be calculated simply and accurately by the EWV-VEL model.
{"title":"A simple and accurate mathematical model of electronically steerable parasitic array radiator antennas","authors":"K. Iigusa, T. Ohira","doi":"10.1109/CCNC.2004.1286878","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286878","url":null,"abstract":"A new mathematical model of electronically steerable parasitic array radiator (ESPAR) antennas is proposed. The ESPAR antenna is a kind of adaptive array antenna expected to spread as a terminal antenna for home LANs or wireless ad-hoc networks. Parasitic elements loaded with variable-reactance terminations are excited by mutual-coupling, so the current distributions along each wire element are not in the ideal sinusoidal function. To consider the current distributions, an equivalent weight vector (EWV) model is modified by introducing a vector effective length (VEL) for each wire element. The vector effective length of a parasitic dipole can be calculated by the reactance value of the variable reactor loading the dipole. The directivity of ESPAR antennas can be calculated simply and accurately by the EWV-VEL model.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"286 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123727907","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286870
Timo Ruohonen, L. Ukkonen, M. Soini, L. Sydänheimo, M. Kivikoski
Lately, as wireless communication has become more and more popular, the quality and reliability of communication has become an issue. GPRS is the first step towards an all-IP system and is a kind of development environment when developing quality and reliability in wireless mobile applications. The paper handles quality and reliability of GPRS connections. Phenomena which affect quality or reliability are covered first. Measurement results are presented. Connection quality and reliability are discussed and prospects concerning quality and reliability in future wireless solutions are expressed as well.
{"title":"Quality and reliability of GPRS connections","authors":"Timo Ruohonen, L. Ukkonen, M. Soini, L. Sydänheimo, M. Kivikoski","doi":"10.1109/CCNC.2004.1286870","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286870","url":null,"abstract":"Lately, as wireless communication has become more and more popular, the quality and reliability of communication has become an issue. GPRS is the first step towards an all-IP system and is a kind of development environment when developing quality and reliability in wireless mobile applications. The paper handles quality and reliability of GPRS connections. Phenomena which affect quality or reliability are covered first. Measurement results are presented. Connection quality and reliability are discussed and prospects concerning quality and reliability in future wireless solutions are expressed as well.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114071190","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286881
R. Kuhn, J. Junqua, David Kryze, A. Nickolov, K. Stoimenov
Today's consumer is faced with the task of navigating through a bewildering array of entertainment choices in the home. The traditional interfaces for accessing entertainment content (e.g., the handheld remote TV control) were not designed to cope with such a complex navigation task. Furthermore, such traditional interfaces present choices in a way that is quite different from the way in which the user thinks about the choices. We describe a prototype system for interactive TV control that illustrates a new paradigm for human-centered access to entertainment. The system is aided by knowledge about the consumer's preferences and past behavior, and by its access to information available on the Internet. We show how, by putting together a number of enabling technologies, a natural dialogue between the system and the consumer is achieved. The dialogue is mixed-mode; the system supports spoken input and output, and graphical and text output. Test users greatly preferred this mixed interface to a speech-only one, mainly because it leaves them in no doubt about the current state of the system. We believe the success of the approach adopted here shows how accessibility requirements may be met for many different types of consumer devices.
{"title":"A multimodal, networked dialogue system for access to entertainment","authors":"R. Kuhn, J. Junqua, David Kryze, A. Nickolov, K. Stoimenov","doi":"10.1109/CCNC.2004.1286881","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286881","url":null,"abstract":"Today's consumer is faced with the task of navigating through a bewildering array of entertainment choices in the home. The traditional interfaces for accessing entertainment content (e.g., the handheld remote TV control) were not designed to cope with such a complex navigation task. Furthermore, such traditional interfaces present choices in a way that is quite different from the way in which the user thinks about the choices. We describe a prototype system for interactive TV control that illustrates a new paradigm for human-centered access to entertainment. The system is aided by knowledge about the consumer's preferences and past behavior, and by its access to information available on the Internet. We show how, by putting together a number of enabling technologies, a natural dialogue between the system and the consumer is achieved. The dialogue is mixed-mode; the system supports spoken input and output, and graphical and text output. Test users greatly preferred this mixed interface to a speech-only one, mainly because it leaves them in no doubt about the current state of the system. We believe the success of the approach adopted here shows how accessibility requirements may be met for many different types of consumer devices.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128007887","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286848
Ahmed Sobeih, H. Baraka, Aly A. Fahmy
A reliable multicast protocol for wireless mobile multihop ad hoc networks (ReMHoc) is proposed. ReMHoc ensures the eventual delivery of the multicast data to all the multicast group members. ReMHoc is receiver-initiated and NACK-based, and it makes use of feedback suppression in order to avoid negative acknowledgement (NACK) and retransmission implosion. The loss recovery burden is distributed over the multicast group members in order to reduce recovery latency and end-to-end delay. Simulations (using GloMoSim 2.0) have demonstrated the scalability of ReMHoc.
{"title":"ReMHoc: a reliable multicast protocol for wireless mobile multihop ad hoc networks","authors":"Ahmed Sobeih, H. Baraka, Aly A. Fahmy","doi":"10.1109/CCNC.2004.1286848","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286848","url":null,"abstract":"A reliable multicast protocol for wireless mobile multihop ad hoc networks (ReMHoc) is proposed. ReMHoc ensures the eventual delivery of the multicast data to all the multicast group members. ReMHoc is receiver-initiated and NACK-based, and it makes use of feedback suppression in order to avoid negative acknowledgement (NACK) and retransmission implosion. The loss recovery burden is distributed over the multicast group members in order to reduce recovery latency and end-to-end delay. Simulations (using GloMoSim 2.0) have demonstrated the scalability of ReMHoc.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"2009 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125598456","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}
Pub Date : 2004-04-19DOI: 10.1109/CCNC.2004.1286922
Hang T. Chan, R. Chang
Strifeshadow Fantasy (SSF) is a massive, multi-player, online, role-playing game. Players of this game, acting as avatars, search for ancient signs, and their goals are to defeat the god of destruction. Players can adventure in the game alone or co-operate with others through the chat box. SSF is available for free and there are currently more than 10,000 registered users. We highlight the overall software architecture of SSF, which is based on a simple server-client model and HTTP. We also describe, in detail, two problems encountered in the course of designing SSF and the solutions to them. The first one is a local state consistency problem, which is to ensure that each client participating in the game eventually receives all the state updates, once and only once. The second one is a connection jamming problem that is a result of using nonpersistent HTTP connections for communication between the game server and clients.
{"title":"Strifeshadow Fantasy: a massive multi-player online game","authors":"Hang T. Chan, R. Chang","doi":"10.1109/CCNC.2004.1286922","DOIUrl":"https://doi.org/10.1109/CCNC.2004.1286922","url":null,"abstract":"Strifeshadow Fantasy (SSF) is a massive, multi-player, online, role-playing game. Players of this game, acting as avatars, search for ancient signs, and their goals are to defeat the god of destruction. Players can adventure in the game alone or co-operate with others through the chat box. SSF is available for free and there are currently more than 10,000 registered users. We highlight the overall software architecture of SSF, which is based on a simple server-client model and HTTP. We also describe, in detail, two problems encountered in the course of designing SSF and the solutions to them. The first one is a local state consistency problem, which is to ensure that each client participating in the game eventually receives all the state updates, once and only once. The second one is a connection jamming problem that is a result of using nonpersistent HTTP connections for communication between the game server and clients.","PeriodicalId":316094,"journal":{"name":"First IEEE Consumer Communications and Networking Conference, 2004. CCNC 2004.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125845786","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}
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