12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598)最新文献_第9页

Handling end-to-end QoS in mobile heterogeneous networking environments 处理移动异构网络环境下的端到端QoS

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965460

D. Mandato, A. Kassler, T. Robles, Georg Neureiter

{"title":"Handling end-to-end QoS in mobile heterogeneous networking environments","authors":"D. Mandato, A. Kassler, T. Robles, Georg Neureiter","doi":"10.1109/PIMRC.2001.965460","DOIUrl":"https://doi.org/10.1109/PIMRC.2001.965460","url":null,"abstract":"The BRAIN (broadband radio access for IP based networks) project has been proposed to study a system that combines different wireless access network technologies. We present mechanisms to manage end-to-end QoS, including mobile end-systems and IP based wireless access networks (i.e. the BRAIN access network, BAN) in the transmission path. This includes the possible impact of mobility on QoS issues. Supporting QoS in mobile environments is hard to achieve because of potential handovers (horizontal and vertical) and error rate patterns of wireless links in contrast to fixed networks. To solve this issue, QoS signalling and adaptation mechanisms are required. We propose to build upon the BRAIN QoS framework and the BRain ENd Terminal Architecture (BRENTA), which provides the end-system functionality to manage QoS end-to-end from the users and applications point of view. We also show how admission control is embedded in the overall scenario and draft several protocol variants for an end-to-end negotiation of QoS that integrates local resource management and adaptation path strategies derived from users' QoS requirements.","PeriodicalId":318292,"journal":{"name":"12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129491617","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: 6

A new method of carrier phase recovery for BPSK system using turbo-codes over AWGN channel 一种基于AWGN信道的涡轮码载波相位恢复新方法

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965416

Li X. Zhang, A. Burr

引用次数: 7

Enhanced service availability and resource utilisation by means of composite radio systems management 通过综合无线电系统管理，提高服务的可用性和资源的利用率

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965335

P. Demestichas, A. Oikonomou, K. Floros, L. Papadopoulou, V. Stavroulaki, M. Theologou, G. Martinez, G. Vivier, F. Galliano, E. S. D. L. F. Gallego, D. Zeglache, P. Kuonen, C. Caragiuli

{"title":"Enhanced service availability and resource utilisation by means of composite radio systems management","authors":"P. Demestichas, A. Oikonomou, K. Floros, L. Papadopoulou, V. Stavroulaki, M. Theologou, G. Martinez, G. Vivier, F. Galliano, E. S. D. L. F. Gallego, D. Zeglache, P. Kuonen, C. Caragiuli","doi":"10.1109/PIMRC.2001.965335","DOIUrl":"https://doi.org/10.1109/PIMRC.2001.965335","url":null,"abstract":"This paper builds on the assumption that in the fourth generation (4G) wireless system context Universal Mobile Telecommunications System (UMTS), mobile broadband systems (MBS) and digital broadcasting systems (DBS) can be three co-operating components that enable wireless access to IP-based services. Managing the resources of this powerful infrastructure in an aggregate manner and multi-operator scenario is a complex task. This paper presents an approach to the overall UMTS, MBS and DBS network and service management problem. Key points addressed are the development of open interfaces with service provider mechanisms and the heterogeneous managed infrastructure, performance monitoring, joint optimization of the UMTS, MBS and DBS resources in accordance with the service provider requests and the changing with time environment conditions. The architecture of a corresponding UMTS, MBS and DBS network and service management platform is presented, in terms of logical blocks, implementation options and validation approach.","PeriodicalId":318292,"journal":{"name":"12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121443814","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

Adaptive bit loading for wireless OFDM systems 无线OFDM系统的自适应位加载

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965326

A. Barreto, S. Furrer

引用次数: 55

Location-based VAS: killer applications for the next-generation mobile Internet 基于位置的VAS:下一代移动互联网的杀手级应用

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965429

A. Mihovska, J. Pereira

{"title":"Location-based VAS: killer applications for the next-generation mobile Internet","authors":"A. Mihovska, J. Pereira","doi":"10.1109/PIMRC.2001.965429","DOIUrl":"https://doi.org/10.1109/PIMRC.2001.965429","url":null,"abstract":"The reach and scope of commercial (and private) wireless system is expanding at fast pace. Third-generation mobile communication systems (IMT-2000 and Universal Mobile Telecommunication System, UMTS) will deliver voice, graphic, video, and other broadband information directly to the user, regardless of location, network, or terminal. Fourth generation systems promise to extend this even further, providing integrated, seamless services over heterogeneous networks, with higher spectral efficiency and at lower price. The concept of context-awareness involves, to start with, the need to determine and deliver the geographic location of wireless terminals and devices to provide the personalized, customized service the user wants. Most of the currently proposed positioning solutions address specific wireless technologies and short-term market requirements and lack interoperability, simplicity, long-term evolution paths and sometimes the support of major manufacturers and operators. On the other hand, while user devices and interfaces have progressed, Internet transport and communications architecture still utilize legacy solutions and protocols that are often the real cause of traffic congestion and security problems. This paper examines the drivers and issues surrounding the development of mobile Internet-based services and the availability of location information from the wireless networks, independent of their air interfaces and positioning technologies, including the requirements for security, billing, and interoperability, in the context of a comparative analysis of existing and proposed location-positioning technologies and systems. Based on this survey, personalized, context-aware and location-based value-added services (VAS) emerge as an essential ingredient of the killer application cocktail for the next-generation Internet.","PeriodicalId":318292,"journal":{"name":"12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115777747","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: 6

Downlink capacity estimation in a WCDMA cellular network WCDMA蜂窝网络中的下行链路容量估计

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965385

S. Burley

引用次数: 16

Behavior of UDP-based applications over IEEE 802.11 wireless networks 基于udp的应用在IEEE 802.11无线网络上的行为

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965298

Ramón Agüero, Marta García-Arranz, L. Muñoz, P. Mähönen

{"title":"Behavior of UDP-based applications over IEEE 802.11 wireless networks","authors":"Ramón Agüero, Marta García-Arranz, L. Muñoz, P. Mähönen","doi":"10.1109/PIMRC.2001.965298","DOIUrl":"https://doi.org/10.1109/PIMRC.2001.965298","url":null,"abstract":"The aim of this paper is to characterize the behavior of the UDP transport protocol, mainly in terms of throughput and average delay, over an IEEE 802.11b compliant wireless local area network (WLAN) from an experimental approach. Although performance evaluation of these kinds of LAN is being extensively discussed in the current literature, most of these studies are analytical or simulation-based and they do not consider the influence of channel impairments or link quality over network throughput. After an exhaustive measurement campaign, different performance parameters such as throughput, goodput, effective goodput, frame error rate, IT loss rate, delay and jitter have been obtained. This could be a preliminary analysis of the behavior of real-time traffic over WLAN infrastructures, such as streaming audio and voice transmission, services that are expected to undergo substantial growth in the coming years. All these studies and results have been developed in the context of the WINE (Wireless Internet Networks) project belonging to the framework of the Information Society Technologies (IST) programme, addressed to enhancing the performance of TCP/IP protocol over WLAN such as IEEE 802.11, Bluetooth and HIPERLAN/2.","PeriodicalId":318292,"journal":{"name":"12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598)","volume":"03 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131217451","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: 59

Concatenated space-time coding 串联空时编码

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965477

C. Schlegel, A. Grant

引用次数: 21

Downlink performance of cell-partitioned CDMA cellular systems with time-slot assignment 时隙分配下蜂窝分块CDMA系统的下行性能

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965457

K. Takeo

引用次数: 0

Admission control for mixed services in downlink WCDMA in different propagation environments 不同传播环境下WCDMA下行混合业务的准入控制

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598) Pub Date : 2001-09-30 DOI: 10.1109/PIMRC.2001.965258

Maria Missiroli, Riccardo Patelli, L. Vignali

{"title":"Admission control for mixed services in downlink WCDMA in different propagation environments","authors":"Maria Missiroli, Riccardo Patelli, L. Vignali","doi":"10.1109/PIMRC.2001.965258","DOIUrl":"https://doi.org/10.1109/PIMRC.2001.965258","url":null,"abstract":"An admission control algorithm for downlink WCDMA systems is proposed and analysed, through dynamic simulations, considering a detailed propagation model. The evaluated admission control algorithm allows access to radio resources based on a filtered version of transmitted power at a base station. It takes advantage of the suggested prediction mechanism of the future transmitted power and is capable of handling access requests of different service classes. Comparisons with both a reference scenario and basic admission control are included as well. Results indicate that the proposed algorithm can exploit the resource allocation flexibility of power limited systems especially well where propagation conditions introduce heavy spatial non-uniformity. In fact in the simulated urban scenario, the capacity gain, introduced by the proposed algorithm, is shown to be more than doubled compared to the uniform environment case. In addition, it is shown that the algorithm, working with different kinds of services, can maintain almost the same traffic mix, regardless of the absolute system load.","PeriodicalId":318292,"journal":{"name":"12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. Proceedings (Cat. No.01TH8598)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122065539","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: 8