Pub Date : 2005-07-11DOI: 10.1109/ICACT.2005.246136
Cheonshu Park, Joochan Shon
This paper presents the method that model and process Web ontology data. That is, we describe the method that create and handle ontology object model in which to access, express and process Web ontology. With rising of semantic Web, there are many approaches that process ontology according to a characteristic of ontology data on Web. Recently, the resource description framework (RDF), DAML-OIL and Web ontology language (OWL) used as a language to express Web ontology. Hierarchical vocabulary architecture is to be composed of the top ontology layer of frame-base and the generic ontology layer that define common vocabulary use different domain and functional ontology layer which expressed the vocabulary that depend on generic ontology. By creating the ontology object model that used hierarchical vocabularies, we remove redundancy of an expression and can increase reusability. Furthermore, by using model access API, ontology external application such as reasoning, merging and authoring tools can easily access ontology object model and provide an easy knowledge representation about ontology
{"title":"A study on the web ontology processing system","authors":"Cheonshu Park, Joochan Shon","doi":"10.1109/ICACT.2005.246136","DOIUrl":"https://doi.org/10.1109/ICACT.2005.246136","url":null,"abstract":"This paper presents the method that model and process Web ontology data. That is, we describe the method that create and handle ontology object model in which to access, express and process Web ontology. With rising of semantic Web, there are many approaches that process ontology according to a characteristic of ontology data on Web. Recently, the resource description framework (RDF), DAML-OIL and Web ontology language (OWL) used as a language to express Web ontology. Hierarchical vocabulary architecture is to be composed of the top ontology layer of frame-base and the generic ontology layer that define common vocabulary use different domain and functional ontology layer which expressed the vocabulary that depend on generic ontology. By creating the ontology object model that used hierarchical vocabularies, we remove redundancy of an expression and can increase reusability. Furthermore, by using model access API, ontology external application such as reasoning, merging and authoring tools can easily access ontology object model and provide an easy knowledge representation about ontology","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116201447","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 : 2005-07-11DOI: 10.1109/ICACT.2005.246113
YoungHwan Kwon, S. Choi, J. Choi, Hyung Jun Kim, Jungsoo Park
This paper proposes an efficient multicast setup mechanism for mobile hosts in multiprotocol label switching (MPLS) network. A management of multicast tree is based on MPLS label. A mobile node (MN) can join a specific multicast group through egress LER after movement detecting. In our mechanism, egress LER has a responsibility to join multicast group and transmit multicast data traffic to MN as remote subscription. After MN joining, data forwarding method uses MPLS-based forwarding. This MPLS-based mobile multicast algorithm can improve performance and solve other mobile multicast problems such as tunnel convergence problem, late join latency, nonoptimized route and complexity
{"title":"Efficient multicast setup mechanism for mobile hosts in MPLS network","authors":"YoungHwan Kwon, S. Choi, J. Choi, Hyung Jun Kim, Jungsoo Park","doi":"10.1109/ICACT.2005.246113","DOIUrl":"https://doi.org/10.1109/ICACT.2005.246113","url":null,"abstract":"This paper proposes an efficient multicast setup mechanism for mobile hosts in multiprotocol label switching (MPLS) network. A management of multicast tree is based on MPLS label. A mobile node (MN) can join a specific multicast group through egress LER after movement detecting. In our mechanism, egress LER has a responsibility to join multicast group and transmit multicast data traffic to MN as remote subscription. After MN joining, data forwarding method uses MPLS-based forwarding. This MPLS-based mobile multicast algorithm can improve performance and solve other mobile multicast problems such as tunnel convergence problem, late join latency, nonoptimized route and complexity","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127598720","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 : 2005-07-11DOI: 10.1109/ICACT.2005.246000
Ki-nam Kim, Jin-Ho Kim, Jung-Hoon Song, Sung-Joon Cho
In this paper, multi-band orthogonal frequency division multiplexing (MB-OFDM) system is analyzed as a strong candidate for wireless personal area network (WPAN) standard. MB-OFDM system provides the information data rate from 53.3 Mbps to 480 Mbps according to the used bandwidth. Also, the frequency/time-domain spreading schemes supply the frequency diversity gain but they decrease the transmission efficiency per unit time. To compensate this problem, the transmit diversity scheme is proposed where a symbol is repeatedly transmitted at the space domain. The bit error rate (BER) performance of the proposed system is confirmed by simulation
{"title":"Improvement of the transmission efficiency with transmit diversity scheme in multi-band OFDM systems","authors":"Ki-nam Kim, Jin-Ho Kim, Jung-Hoon Song, Sung-Joon Cho","doi":"10.1109/ICACT.2005.246000","DOIUrl":"https://doi.org/10.1109/ICACT.2005.246000","url":null,"abstract":"In this paper, multi-band orthogonal frequency division multiplexing (MB-OFDM) system is analyzed as a strong candidate for wireless personal area network (WPAN) standard. MB-OFDM system provides the information data rate from 53.3 Mbps to 480 Mbps according to the used bandwidth. Also, the frequency/time-domain spreading schemes supply the frequency diversity gain but they decrease the transmission efficiency per unit time. To compensate this problem, the transmit diversity scheme is proposed where a symbol is repeatedly transmitted at the space domain. The bit error rate (BER) performance of the proposed system is confirmed by simulation","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128752604","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 : 2005-07-11DOI: 10.1109/ICACT.2005.245860
G.Y. Il, M. Abdullah, S. Khatun, B. Ali
This paper proposes a prioritized scheduling in associated with contention resolution schemes for bufferless, single stage, non-blocking fully connected optical packet switch in synchronous optical packet switching network. We introduce a technique that integrates prioritized scheduling with wavelength conversion that can be realized by tunable optical wavelength converter (TOWC). It comprises a set of preemptive selective policies for contention resolution. This proposed scheme ensures packet loss probability below 10-10 that supports traffic load up to 50%, without suffering from conventional buffering delay. It guarantees real-time delivery for high priority packet with elimination of unnecessary wavelength conversion
{"title":"Prioritized scheduling for bufferless slotted WDM optical packet switch via wavelength conversion","authors":"G.Y. Il, M. Abdullah, S. Khatun, B. Ali","doi":"10.1109/ICACT.2005.245860","DOIUrl":"https://doi.org/10.1109/ICACT.2005.245860","url":null,"abstract":"This paper proposes a prioritized scheduling in associated with contention resolution schemes for bufferless, single stage, non-blocking fully connected optical packet switch in synchronous optical packet switching network. We introduce a technique that integrates prioritized scheduling with wavelength conversion that can be realized by tunable optical wavelength converter (TOWC). It comprises a set of preemptive selective policies for contention resolution. This proposed scheme ensures packet loss probability below 10-10 that supports traffic load up to 50%, without suffering from conventional buffering delay. It guarantees real-time delivery for high priority packet with elimination of unnecessary wavelength conversion","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132375730","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 : 2005-07-11DOI: 10.1109/ICACT.2005.246100
Sung-Woo Choi, Sangsung Choi
UWB is the most spotlighted wireless technology that transmits data at very high rates using low power over a wide spectrum of frequency band. UWB technology makes it possible to transmit data at rate over 400 Mbps in full specification mode and 200 Mbps in mandatory mode. To implement this high speed, it needs clock speed about several hundreds, it has some implementation bottle neck such as Viterbi decoder. In this paper, we analyze the requirements of Viterbi decoder for UWB system, and suggest appropriate architecture for 200 Mbps mandatory mode that could be implemented by ASIC. Using this architecture, we show the results that simulate optimum soft-input bit width and trace-back length. At last, we show hardware implementation results of Viterbi decoder for 200 Mbps mandatory mode
{"title":"20OMbps Viterbi decoder for UWB","authors":"Sung-Woo Choi, Sangsung Choi","doi":"10.1109/ICACT.2005.246100","DOIUrl":"https://doi.org/10.1109/ICACT.2005.246100","url":null,"abstract":"UWB is the most spotlighted wireless technology that transmits data at very high rates using low power over a wide spectrum of frequency band. UWB technology makes it possible to transmit data at rate over 400 Mbps in full specification mode and 200 Mbps in mandatory mode. To implement this high speed, it needs clock speed about several hundreds, it has some implementation bottle neck such as Viterbi decoder. In this paper, we analyze the requirements of Viterbi decoder for UWB system, and suggest appropriate architecture for 200 Mbps mandatory mode that could be implemented by ASIC. Using this architecture, we show the results that simulate optimum soft-input bit width and trace-back length. At last, we show hardware implementation results of Viterbi decoder for 200 Mbps mandatory mode","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"23 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133650868","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 : 2005-07-11DOI: 10.1109/ICACT.2005.245964
Jaekyung Choi
Nowadays, in telecommunication market in Korea, there are intensive competitions among service providers and users become to call for enhanced QoS. In response to current business environment change, service providers strive to find solutions to be more competitive by differentiating from others or to meet users' expectations and needs. Among these endeavors, deployment of SLA (service level agreement) is one of effective alternative in achieving service providers' such purpose. But, in deploying SLA, most of service providers simply adopt either best practice of other service providers by benchmarking without consideration service providers' situation or restricted internal managerial quality index without filtering which SLOs (service level objectives) should be deployed, which SLOs has priorities, etc. Furthermore the process of SLA management consisted of operations of network infrastructures, operation staffs, service management has a problem that the SLA management process has not been dealt with sufficient care and systematic exertion. In this paper, we suggest a new framework for SLA deployment and management using the concept and methodology of six sigma. Namely, we present a systematic framework for SLA deployment from selecting SLO by collecting VOC (voice of customers) and deriving CTQ (critical to quality) by using six sigma methodology to SLA management by adopting process of QoS measurement and improvement by using six sigma methodology. In conclusion, we give insights to service providers about necessary factors to be considered in the process of quality management desired to enhance the degree of customers' satisfaction and service providers' network and service operational efficiency
{"title":"Design of a systematic framework for deploying SLA using six sigma methodology","authors":"Jaekyung Choi","doi":"10.1109/ICACT.2005.245964","DOIUrl":"https://doi.org/10.1109/ICACT.2005.245964","url":null,"abstract":"Nowadays, in telecommunication market in Korea, there are intensive competitions among service providers and users become to call for enhanced QoS. In response to current business environment change, service providers strive to find solutions to be more competitive by differentiating from others or to meet users' expectations and needs. Among these endeavors, deployment of SLA (service level agreement) is one of effective alternative in achieving service providers' such purpose. But, in deploying SLA, most of service providers simply adopt either best practice of other service providers by benchmarking without consideration service providers' situation or restricted internal managerial quality index without filtering which SLOs (service level objectives) should be deployed, which SLOs has priorities, etc. Furthermore the process of SLA management consisted of operations of network infrastructures, operation staffs, service management has a problem that the SLA management process has not been dealt with sufficient care and systematic exertion. In this paper, we suggest a new framework for SLA deployment and management using the concept and methodology of six sigma. Namely, we present a systematic framework for SLA deployment from selecting SLO by collecting VOC (voice of customers) and deriving CTQ (critical to quality) by using six sigma methodology to SLA management by adopting process of QoS measurement and improvement by using six sigma methodology. In conclusion, we give insights to service providers about necessary factors to be considered in the process of quality management desired to enhance the degree of customers' satisfaction and service providers' network and service operational efficiency","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131408574","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 : 2005-07-11DOI: 10.1109/ICACT.2005.246115
Jungjoon Lee, J. Choi, Young Hwa Kim, B. Yae
This paper is concerned about an optimum access control algorithm to guarantee quality of service over an access networks. First, protocol and network architecture after introducing a motive and circumstance is mentioned. And there is some analysis of the queuing model for the access network. Finally the author concluded the effect and performance of this mechanism
{"title":"QoS class mapping mechanism at the access gateway","authors":"Jungjoon Lee, J. Choi, Young Hwa Kim, B. Yae","doi":"10.1109/ICACT.2005.246115","DOIUrl":"https://doi.org/10.1109/ICACT.2005.246115","url":null,"abstract":"This paper is concerned about an optimum access control algorithm to guarantee quality of service over an access networks. First, protocol and network architecture after introducing a motive and circumstance is mentioned. And there is some analysis of the queuing model for the access network. Finally the author concluded the effect and performance of this mechanism","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132790831","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 : 2005-07-11DOI: 10.1109/ICACT.2005.245931
Y. Yoon, Imsook Ha, M. Choi
this paper, we formulated an extended TAM (technology acceptance model) specific to mobile game under Wibro environment, and empirically validated it in Korea by SEM (structural equation modeling). Since mobile games under Wibro environment might inherit the properties of game and those of mobile device, we extended TAM with perceived enjoyment, attractiveness, sacrifice, flow experience, and social norm. We collected 1011 usable respondents by on-line survey. Overall, the results uncovered that the effect of perceived ease of use, enjoyment, and social norm are remarkably mighty and usefulness does not influence an individual's attitude and intention to play mobile game under Wibro environment. In addition, we also found out that age work as a key modifier of acceptance of playing mobile games under Wibro environment. The implication and limitation of this study are discussed
{"title":"Nature of potential mobile gamers' behavior under future wireless mobile environment","authors":"Y. Yoon, Imsook Ha, M. Choi","doi":"10.1109/ICACT.2005.245931","DOIUrl":"https://doi.org/10.1109/ICACT.2005.245931","url":null,"abstract":"this paper, we formulated an extended TAM (technology acceptance model) specific to mobile game under Wibro environment, and empirically validated it in Korea by SEM (structural equation modeling). Since mobile games under Wibro environment might inherit the properties of game and those of mobile device, we extended TAM with perceived enjoyment, attractiveness, sacrifice, flow experience, and social norm. We collected 1011 usable respondents by on-line survey. Overall, the results uncovered that the effect of perceived ease of use, enjoyment, and social norm are remarkably mighty and usefulness does not influence an individual's attitude and intention to play mobile game under Wibro environment. In addition, we also found out that age work as a key modifier of acceptance of playing mobile games under Wibro environment. The implication and limitation of this study are discussed","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133864584","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 : 2005-07-11DOI: 10.1109/ICACT.2005.246058
Nam-Shik Park, Kang-Woo Lee, Hyun Kim, Seong-il Jin
Ubiquitous computing is the idea that invisible computation everywhere can enhance life in the real world. Applications and services in ubiquitous environments must be aware of their changing environments and adapt according to changing contexts. However, developing such systems providing context-aware applications or services is still a complex and time-consuming task. Therefore, we introduce architecture of context-aware service middleware (CASM) that provides a middleware-level support for building and rapid prototyping of context-aware services and describe interactions based on the architecture
{"title":"A middleware for context-aware application services in ubiquitous environments","authors":"Nam-Shik Park, Kang-Woo Lee, Hyun Kim, Seong-il Jin","doi":"10.1109/ICACT.2005.246058","DOIUrl":"https://doi.org/10.1109/ICACT.2005.246058","url":null,"abstract":"Ubiquitous computing is the idea that invisible computation everywhere can enhance life in the real world. Applications and services in ubiquitous environments must be aware of their changing environments and adapt according to changing contexts. However, developing such systems providing context-aware applications or services is still a complex and time-consuming task. Therefore, we introduce architecture of context-aware service middleware (CASM) that provides a middleware-level support for building and rapid prototyping of context-aware services and describe interactions based on the architecture","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122612983","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 : 2005-07-11DOI: 10.1109/ICACT.2005.246223
Jongik Kim, Jun-Ki Min, O. Kwon
In this paper, we propose an inverted index technique and a novel structural join technique for accelerating XML path query evaluation. Our inverted index can retrieve element lists for path segments in a parent-child relationship. Our structural join technique can handle lists of element pairs while the existing techniques handle lists of elements. We show through experiments that these two proposed techniques are integrated to accelerate evaluation of XML path queries
{"title":"Retrieval of element lists using the 2-level deterministic inverted index for accelerating structural joins","authors":"Jongik Kim, Jun-Ki Min, O. Kwon","doi":"10.1109/ICACT.2005.246223","DOIUrl":"https://doi.org/10.1109/ICACT.2005.246223","url":null,"abstract":"In this paper, we propose an inverted index technique and a novel structural join technique for accelerating XML path query evaluation. Our inverted index can retrieve element lists for path segments in a parent-child relationship. Our structural join technique can handle lists of element pairs while the existing techniques handle lists of elements. We show through experiments that these two proposed techniques are integrated to accelerate evaluation of XML path queries","PeriodicalId":293442,"journal":{"name":"The 7th International Conference on Advanced Communication Technology, 2005, ICACT 2005.","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122895022","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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