Pub Date : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940900
M. Park, Gi-Poong Gwon, S. Seo
Cell-based Decentralized Key Management (CDKM) was proposed to manage a group key for secure multicast in mobile cellular networks efficiently. It achieves better performance with less management overhead than other currently available schemes by dividing a group into the cell-based multiple subgroups and delegating key management functions to each base station governing each subgroup. However, room for improvement still remains in the subgroup size affecting the rekeying overhead directly. This paper proposes the enhanced CDKM which improves the rekeying performance through the reduction of the size of the subgroup, and adopts this scheme to group key management in vehicular communication networks. The proposed scheme further splits the cell-based subgroups into several segments, which is simple but very efficient way to reduce the rekeying overhead. We prove mathematically that the additional split enhances the performance, and show the proposed scheme can improve the rekeying performance by up to 15% over the original CDKM and by at least 80% over the existing schemes.
{"title":"Enhancement of cell-based decentralized Key Management in vehicular communication networks","authors":"M. Park, Gi-Poong Gwon, S. Seo","doi":"10.1109/WIRELESSVITAE.2011.5940900","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940900","url":null,"abstract":"Cell-based Decentralized Key Management (CDKM) was proposed to manage a group key for secure multicast in mobile cellular networks efficiently. It achieves better performance with less management overhead than other currently available schemes by dividing a group into the cell-based multiple subgroups and delegating key management functions to each base station governing each subgroup. However, room for improvement still remains in the subgroup size affecting the rekeying overhead directly. This paper proposes the enhanced CDKM which improves the rekeying performance through the reduction of the size of the subgroup, and adopts this scheme to group key management in vehicular communication networks. The proposed scheme further splits the cell-based subgroups into several segments, which is simple but very efficient way to reduce the rekeying overhead. We prove mathematically that the additional split enhances the performance, and show the proposed scheme can improve the rekeying performance by up to 15% over the original CDKM and by at least 80% over the existing schemes.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"57 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86475394","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940857
K. Doppler, C. Ribeiro, Jarkko Kneckt
Device-to-Device communications with automated connectivity to sensors, machines and other users is an important enabler for a multitude of use cases with local social networks as one example. In this paper we focus on the main challenges to build a seamless user experience. In particular, we present a novel device beaconing scheme to facilitate service and device discovery. Moreover, the mechanism enables the exchange of small data packets and facilitates the connection setup of a suitable transport radio. We discuss the energy efficiency of the proposed device discovery mechanism and evaluate the capability to form a network in a residential scenario with different device densities.
{"title":"Advances in D2D communications: Energy efficient service and device discovery radio","authors":"K. Doppler, C. Ribeiro, Jarkko Kneckt","doi":"10.1109/WIRELESSVITAE.2011.5940857","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940857","url":null,"abstract":"Device-to-Device communications with automated connectivity to sensors, machines and other users is an important enabler for a multitude of use cases with local social networks as one example. In this paper we focus on the main challenges to build a seamless user experience. In particular, we present a novel device beaconing scheme to facilitate service and device discovery. Moreover, the mechanism enables the exchange of small data packets and facilitates the connection setup of a suitable transport radio. We discuss the energy efficiency of the proposed device discovery mechanism and evaluate the capability to form a network in a residential scenario with different device densities.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"8 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82188293","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940859
D. Noguet, Rohit Datta, P. Lehne, M. Gautier, G. Fettweis
Regulatory regimes for opportunistic usage is being discussed in many countries for the so called TV White Space channels. The key objective of the regulators is to ensure that opportunistic systems can coexist with incumbent systems without causing harmful interference. However, they do not specify how these opportunistic systems must be designed to guarantee these requirements and to exploit White Spaces in an optimal way. This paper gathers key regulatory rules for opportunistic usage in the TV bands, and illustrates how these rules are turned into technical requirements within the framework of the European FP7 QoSMOS project.
{"title":"TVWS regulation and QoSMOS requirements","authors":"D. Noguet, Rohit Datta, P. Lehne, M. Gautier, G. Fettweis","doi":"10.1109/WIRELESSVITAE.2011.5940859","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940859","url":null,"abstract":"Regulatory regimes for opportunistic usage is being discussed in many countries for the so called TV White Space channels. The key objective of the regulators is to ensure that opportunistic systems can coexist with incumbent systems without causing harmful interference. However, they do not specify how these opportunistic systems must be designed to guarantee these requirements and to exploit White Spaces in an optimal way. This paper gathers key regulatory rules for opportunistic usage in the TV bands, and illustrates how these rules are turned into technical requirements within the framework of the European FP7 QoSMOS project.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"39 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80716779","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940872
Z. Abbas, F. Li
Network power consumption reduction has recently become an active research topic. In this paper, we propose a novel approach to save power consumption of a three-cell microcellular network. When the traffic load in the middle cell is low, it can be switched-off and its users are covered. This is enabled by increasing the transmission power of one sector antenna in the two neighboring cells. Numerical results show that by increasing antenna transmission power of the two sectors, the overall network power consumption can be reduced.
{"title":"A system-level power saving approach for cellular networks with microcells/picocells","authors":"Z. Abbas, F. Li","doi":"10.1109/WIRELESSVITAE.2011.5940872","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940872","url":null,"abstract":"Network power consumption reduction has recently become an active research topic. In this paper, we propose a novel approach to save power consumption of a three-cell microcellular network. When the traffic load in the middle cell is low, it can be switched-off and its users are covered. This is enabled by increasing the transmission power of one sector antenna in the two neighboring cells. Numerical results show that by increasing antenna transmission power of the two sectors, the overall network power consumption can be reduced.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"42 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91169950","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940867
A. Withana, Miyuru Dayarathna, M. Inakage, Kazunori Sugiura
In this paper, we present Infoshare: a flexible and scalable information authoring and sharing architecture for multimedia digital signage systems. Proposed architecture internally analyze and classify content, design and system infrastructure into three different layers using metadata extracted by user input and creates a highly scalable and easy to share digital signage environment. Furthermore, this architecture enables decentralized management by defining different user roles to handle each above mentioned layers. We believe that Infoshare architecture can make an efficient Creation, Distribution and Installation (CDI) cycle for multimedia digital signage content while allowing smooth scalability and management of the system. We applied this architecture to a prototype digital signage system. Paper describes the system implementation, key features and future development directions.
{"title":"Infoshare: Content, design and system independent multimedia signage architecture","authors":"A. Withana, Miyuru Dayarathna, M. Inakage, Kazunori Sugiura","doi":"10.1109/WIRELESSVITAE.2011.5940867","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940867","url":null,"abstract":"In this paper, we present Infoshare: a flexible and scalable information authoring and sharing architecture for multimedia digital signage systems. Proposed architecture internally analyze and classify content, design and system infrastructure into three different layers using metadata extracted by user input and creates a highly scalable and easy to share digital signage environment. Furthermore, this architecture enables decentralized management by defining different user roles to handle each above mentioned layers. We believe that Infoshare architecture can make an efficient Creation, Distribution and Installation (CDI) cycle for multimedia digital signage content while allowing smooth scalability and management of the system. We applied this architecture to a prototype digital signage system. Paper describes the system implementation, key features and future development directions.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91302726","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940882
S. Kyriazakos, N. Prasad
Delivery of eHealth and eInclusion services is a topic that has already been addressed the last decades. The evolution of Internet and technology in general, enable the deployment of reliable infrastructures to even run life critical services, while inclusion of people who live in remote places is achieved through different channels available. Nevertheless systems and services for elderly people with mild dementia, which is a population that is rapidly increasing, is not tackled yet in a holistic way. There are services available that can serve some of the user requirements, but there is a clear lack of integrated solutions focusing on the elderly. Obviously this is a technological and social challenge and has triggered the initiative of ISISEMD project, which is described in this paper.
{"title":"Delivery of eHealth and eInclusion services for elderly people with mild dementia","authors":"S. Kyriazakos, N. Prasad","doi":"10.1109/WIRELESSVITAE.2011.5940882","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940882","url":null,"abstract":"Delivery of eHealth and eInclusion services is a topic that has already been addressed the last decades. The evolution of Internet and technology in general, enable the deployment of reliable infrastructures to even run life critical services, while inclusion of people who live in remote places is achieved through different channels available. Nevertheless systems and services for elderly people with mild dementia, which is a population that is rapidly increasing, is not tackled yet in a holistic way. There are services available that can serve some of the user requirements, but there is a clear lack of integrated solutions focusing on the elderly. Obviously this is a technological and social challenge and has triggered the initiative of ISISEMD project, which is described in this paper.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"15 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87781704","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940891
T. Maseng, Magnus Skjegstad
A distributed architecture for a commercial system for sharing the frequency spectrum is presented. This is obtained by running a new protocol called Frequency Resource Protocol. There are many challenges remaining, but none of these appear unrealistic to solve. Once a trial system has been demonstrated which is underway, the commercial incentives for launching this in terms of a realistic business model remains to be presented and will hopefully result in a standard used by many.
{"title":"Cognitive Radio and the Frequency Resource Protocol (FRP)","authors":"T. Maseng, Magnus Skjegstad","doi":"10.1109/WIRELESSVITAE.2011.5940891","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940891","url":null,"abstract":"A distributed architecture for a commercial system for sharing the frequency spectrum is presented. This is obtained by running a new protocol called Frequency Resource Protocol. There are many challenges remaining, but none of these appear unrealistic to solve. Once a trial system has been demonstrated which is underway, the commercial incentives for launching this in terms of a realistic business model remains to be presented and will hopefully result in a standard used by many.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"1 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90235669","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940907
Rudraksh Shrivastava, Arjun Singh, A. R. Mishra
With the demand for mobile communication services at an all-time high, multimedia services in particular have attracted the interest of the users. The unicast nature of current cellular networks puts severe strain on the limited spectrum when faced with demands for data intensive multimedia services. Powerful and efficient communication systems are needed, which provide high capacities, especially at the downlink. Furthermore, interactivity is essential for supporting the user needs and to extend the service offering. As one possible solution to meet the mentioned requirements, we consider the hybrid networks formed as a combination of the cellular networks (GSM, UMTS, etc.) and the mobile broadcast networks (DVB, MBMS, etc.).
{"title":"Planning hybrid telecom networks for enhanced multimedia services","authors":"Rudraksh Shrivastava, Arjun Singh, A. R. Mishra","doi":"10.1109/WIRELESSVITAE.2011.5940907","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940907","url":null,"abstract":"With the demand for mobile communication services at an all-time high, multimedia services in particular have attracted the interest of the users. The unicast nature of current cellular networks puts severe strain on the limited spectrum when faced with demands for data intensive multimedia services. Powerful and efficient communication systems are needed, which provide high capacities, especially at the downlink. Furthermore, interactivity is essential for supporting the user needs and to extend the service offering. As one possible solution to meet the mentioned requirements, we consider the hybrid networks formed as a combination of the cellular networks (GSM, UMTS, etc.) and the mobile broadcast networks (DVB, MBMS, etc.).","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89184469","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940879
Mihai Gavrilescu, Valentin Andrei, E. Popovici, Tiberius P. Beganu, R. Nastase, O. Fratu, S. Halunga
In this paper we describe a context-aware reconfigurable system, which implements the IEEE 802.21 Media Independent Handover (MIH) standard for interoperability between wireless hybrid access networks. The proposed approach uses vertical handover prediction algorithms to improve the resource management decisions, through access to our Web Service implementation of the Media Independent Information Service (MIIS), which stores previously acquired information about surrounding hybrid access networks. Various prediction alternatives are discussed, and two proposed algorithms are evaluated, on our prototype implementation of the system.
{"title":"Context-aware reconfigurable interoperability for vertical handover in wireless communications","authors":"Mihai Gavrilescu, Valentin Andrei, E. Popovici, Tiberius P. Beganu, R. Nastase, O. Fratu, S. Halunga","doi":"10.1109/WIRELESSVITAE.2011.5940879","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940879","url":null,"abstract":"In this paper we describe a context-aware reconfigurable system, which implements the IEEE 802.21 Media Independent Handover (MIH) standard for interoperability between wireless hybrid access networks. The proposed approach uses vertical handover prediction algorithms to improve the resource management decisions, through access to our Web Service implementation of the Media Independent Information Service (MIIS), which stores previously acquired information about surrounding hybrid access networks. Various prediction alternatives are discussed, and two proposed algorithms are evaluated, on our prototype implementation of the system.","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"27 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87267832","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 : 2011-07-05DOI: 10.1109/WIRELESSVITAE.2011.5940875
P. Balamuralidhar
Ever increasing demand for communication bandwidth to meet the needs of population across various demography of India is is in the focus of government, operators and technology providers. Need for managing Spectrum as a scarce resource is well understood and explorations for efficient spectrum utilization is a national priority. Dynamic shared and opportunistic spectrum access and schemes for utilization of TV white spaces are of interest to the stake holders. An overview of the digital dividend with cognitive access and related opportunities in the context of India is discussed in this paper.1
{"title":"Regulatory aspects and opportunities of TV white spaces in India","authors":"P. Balamuralidhar","doi":"10.1109/WIRELESSVITAE.2011.5940875","DOIUrl":"https://doi.org/10.1109/WIRELESSVITAE.2011.5940875","url":null,"abstract":"Ever increasing demand for communication bandwidth to meet the needs of population across various demography of India is is in the focus of government, operators and technology providers. Need for managing Spectrum as a scarce resource is well understood and explorations for efficient spectrum utilization is a national priority. Dynamic shared and opportunistic spectrum access and schemes for utilization of TV white spaces are of interest to the stake holders. An overview of the digital dividend with cognitive access and related opportunities in the context of India is discussed in this paper.1","PeriodicalId":68078,"journal":{"name":"无线互联科技","volume":"73 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87372507","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：