2008 IEEE Globecom Workshops最新文献_第3页

Web Services Composition using UML-S: A Case Study 使用UML-S的Web服务组合:案例研究

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.55

C. Dumez, J. Gaber, M. Wack

引用次数: 12

An Interference-Aware Analytical Model for Performance Analysis of Transparent Mode 802.16j Systems 透明模式802.16j系统性能分析的干扰感知分析模型

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.76

Vasken Genc, Sean Murphy, John Murphy

引用次数: 14

Optical Backhaul Links between HAPs and Satellites in the Multi-Gigabit Regime 多千兆体制下HAPs与卫星间的光回程链路

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.100

F. Fidler

引用次数: 13

Cooperative Scheduling of Downlink Beam Transmissions in a Cellular Network 蜂窝网络下行波束传输的协同调度

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.79

Patrick Hosein

{"title":"Cooperative Scheduling of Downlink Beam Transmissions in a Cellular Network","authors":"Patrick Hosein","doi":"10.1109/GLOCOMW.2008.ECP.79","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2008.ECP.79","url":null,"abstract":"The next generation of wireless networks (e.g.,) will use multiple techniques to improve channel spectral efficiencies. In this paper we focus on one such technique, beamforming, in the downlink channel. In each sector a number of fixed beams are used to serve users. For each frame the scheduler chooses a beam and then schedules one or more mobiles that lie within that beam. Since the basestation's power is focused on a narrow beam then the served users can achieve higher rates and the sector coverage is also increased. However, this beam causes more interference in adjacent sectors. If a neighboring sector schedules a user that lies within the coverage of the beam then the achievable rate for that user will be low. The neighboring sectors must therefore schedule users outside of the beam. This requires coordination among the sectors. In this paper we assume that each sector coordinates with the sector that lies directly opposite. We provide a framework and show what information needs to be exchanged and how the schedulers in each base station uses the exchanged information to schedule users so that beam collisions are avoided. This must be done with the objectives of high spectral efficiencies and also user fairness. We compare our approach with a simple, non-coordinated approach to illustrate the advantages that coordination provides.","PeriodicalId":410930,"journal":{"name":"2008 IEEE Globecom Workshops","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133216942","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: 13

A Framework for Decentralising Multi-Cell Cooperative Processing on the Downlink 下行链路上分散多小区协同处理的框架

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.70

Agisilaos Papadogiannis, E. Hardouin, D. Gesbert

{"title":"A Framework for Decentralising Multi-Cell Cooperative Processing on the Downlink","authors":"Agisilaos Papadogiannis, E. Hardouin, D. Gesbert","doi":"10.1109/GLOCOMW.2008.ECP.70","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2008.ECP.70","url":null,"abstract":"Multi-cell cooperative processing (MCP) is well acknowledged for significantly improving spectral efficiency and fairness amongst users. Nevertheless MCP comes together with some shortcomings which have also been recognised. Cooperating Base Stations (BSs) need to be inter-connected via a Control Unit (CU) which gathers channel state information (CSI). CU is the entity responsible for performing MS scheduling and defining the transmission parameters. Under a practically feasible linear preceding framework, CU performs user scheduling and designs the beamforming matrix for the chosen users. Therefore MCP implementation adds a very significant infrastructure cost as it requires a CU and low latency links connecting cooperating BSs with it. Furthermore this entails an important protocol complexity in order for all this signaling to be coordinated. In this paper a new framework is proposed that allows MCP on the downlink without the need of costly modifications on the infrastructure comparing to the existing cellular networks. The needed operations are performed in a distributed fashion by the cooperating BSs and this is shown to be a good alternative facilitating MCP implementation.","PeriodicalId":410930,"journal":{"name":"2008 IEEE Globecom Workshops","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123913199","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: 26

TRANSPONDERS: Effectiveness of Propagation Impairments Mitigation Techniques at Q/V Band 应答器:Q/V波段传播损伤缓解技术的有效性

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.12

E. Cianca, C. Stallo, M. Lucente, T. Rossi, C. Cornacchini, A. Vernucci, M. De Sanctis, L. Bruca

{"title":"TRANSPONDERS: Effectiveness of Propagation Impairments Mitigation Techniques at Q/V Band","authors":"E. Cianca, C. Stallo, M. Lucente, T. Rossi, C. Cornacchini, A. Vernucci, M. De Sanctis, L. Bruca","doi":"10.1109/GLOCOMW.2008.ECP.12","DOIUrl":"https://doi.org/10.1109/GLOCOMW.2008.ECP.12","url":null,"abstract":"Q/V band frequencies are expected to play a key role in enabling challenging and unproven broadband communications missions for a wide range of applications. In the perspective to exploit these frequencies, several satellite missions have been proposed to explore the physics of the satellite channel. The strategic importance of probing higher and higher frequencies has been recognized by the Italian Space Agency through the ITALSAT mission that up to date has been the major contributor to the advancement of the Q/V band propagation knowledge. In 2004 ASI funded a feasibility study (phase A study), called TRANSPONDERS, Italian acronym for \"research, analysis and study of Q/V payloads for telecommunications\", whose main objectives were the improvement of the knowledge of propagation impairments at Q/V band and the evaluation of the effectiveness of PIMTs (Propagation Impairment Mitigation Techniques) in very high frequency band operation. In this paper, after an overview of the potential applications in Q/V band and the top level mission architecture relative to the selected applicative mission at these frequencies, the applicability of three selected PIMTs, such as site diversity, power control and Adaptive Coding and Modulation (ACM), in a Q/V band scenario is discussed and main challenges and key issues are identified.","PeriodicalId":410930,"journal":{"name":"2008 IEEE Globecom Workshops","volume":"383 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116371192","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

3D-Accuracy Improvements for TDoA Based Wireless Local Positioning Systems 基于TDoA的无线局部定位系统的3d精度改进

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.33

R. Eickhoff, F. Ellinger, R. Mosshammer, R. Weigel, A. Ziroff, M. Huemer

引用次数: 17

Distributed Inter-Cell Interference Mitigation in OFDMA Wireless Data Networks OFDMA无线数据网络中的分布式小区间干扰缓解

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.81

Honghai Zhang, L. Venturino, N. Prasad, S. Rangarajan

引用次数: 40

Self Organizing WSN Collaborative Beamforming for HAP Communications 自组织无线传感器网络协同波束成形HAP通信

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.103

M. Urso, M. Mondin, E. Falletti, F. Sellone, S. Arnon

引用次数: 7

Fairness Adjustable Grouping Multiuser Scheduling for MIMO MAC with MMSE-SIC Receiver 基于MMSE-SIC接收的MIMO MAC公平性可调分组多用户调度

2008 IEEE Globecom Workshops Pub Date : 2008-11-01 DOI: 10.1109/GLOCOMW.2008.ECP.85

Xiaoting Wang, Wenbo Wang, Zongyin Zhao, Tianlin Zhu

引用次数: 12