2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599)最新文献_第3页

Evaluation of capacity of indoor wireless MIMO channel using ray tracing 基于光线追踪的室内无线MIMO信道容量评估

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991771

A. Burr

引用次数: 34

Performance analysis of the V-BLAST algorithm: an analytical approach V-BLAST算法的性能分析:一种分析方法

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991745

S. Loyka, F. Gagnon

引用次数: 76

Analog decoders and receivers for high speed applications 用于高速应用的模拟解码器和接收器

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991743

J. Hagenauer, M. Moerz, A. Schaefer

引用次数: 16

Silica based optical beamformer in a 60 GHz radio-over-fibre system 60 GHz光纤无线电系统中硅基光学波束形成器

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991767

B. Kuhlow, G. Przyrembel, H. Ehlers, R. Ziegler, J. Knuppel, G. Großkopf, R. Eggemann, D. Rohde

引用次数: 4

Optimization of downlink beamforming for systems with frequency division duplex 分频双工系统下行波束形成优化

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991751

A. Czylwik, A. Dekorsy

引用次数: 3

The impact of radio propagation predictions on urban UMTS planning 无线电传播预测对城市UMTS规划的影响

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991775

M. Coinchon, Anna Salovaara, J. Wagen

{"title":"The impact of radio propagation predictions on urban UMTS planning","authors":"M. Coinchon, Anna Salovaara, J. Wagen","doi":"10.1109/IZSBC.2002.991775","DOIUrl":"https://doi.org/10.1109/IZSBC.2002.991775","url":null,"abstract":"This investigation outlines the importance of accurate radio propagation predictions in the planning for UMTS radio networks. The UMTS radio technology based on variable spreading DS-CDMA techniques is flexible but complex. The sensitivity of a UMTS radio network to the radio environment and traffic conditions is well publicized but rarely quantified. Theoretical analysis and commercial implementation of CDMA cellular systems also tend to show that radio network planning, simplified on one hand because of the lack of frequency planning, could be cumbersome due to difficulties linked to the so-called cell breathing effect. Since this effect is related to the traffic conditions and the radio propagation environments, the more accurate the coverage predictions are, the closer the expected performance will be from the measured performance. To quantify the advantage of accurate radio coverage predictions a case study was undertaken for a UMTS radio network planning in a 5 km/sup 2/ area of Paris (France). This study in an urban environment concludes that a conventional propagation model could lead to erroneous planning with less than expected quality of service, unacceptable interference, and more base stations than necessary. An accurate ray-tracing model integrated in an UMTS-capable planning tool allows the radio network designer to reach optimal levels for the base station deployment and configuration while meeting the expected service level requirements.","PeriodicalId":336991,"journal":{"name":"2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132550542","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: 39

Exact error floor for downlink MC-CDMA with maximal ratio combining in correlated Nakagami fading channels 相关中上衰落信道中最大比值组合下行MC-CDMA精确误差层

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991780

Q. Shi, M. Latva-aho

引用次数: 10

Differential modulation diversity 差分调制分集

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991784

R. Schober, L. Lampe

引用次数: 27

Packet transfer delay comparison of a store-and-forward and a cut-through resilient packet ring 存储转发和穿透弹性分组环的分组传输延迟比较

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991752

D. Schupke, A. Riedl

引用次数: 21

Efficient techniques for QoS based path computation and selection in differentiated service networks 差异化业务网络中基于QoS的路径计算和选择的高效技术

2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599) Pub Date : 2002-08-07 DOI: 10.1109/IZSBC.2002.991755

M. Singh

{"title":"Efficient techniques for QoS based path computation and selection in differentiated service networks","authors":"M. Singh","doi":"10.1109/IZSBC.2002.991755","DOIUrl":"https://doi.org/10.1109/IZSBC.2002.991755","url":null,"abstract":"We propose techniques for incorporating QoS mechanisms into routing path computation and path selection algorithms for use in the the next generation Internet. We believe that using such techniques will help to provide a complete solution to the QoS problem. The problem of QoS routing is essentially one of finding a optimal path which will satisfy one or more constraints such as bandwidth, delay, jitter delay and minimize some cost function. This problem belongs to the class of problems known as multiobjective constrained path optimization which are known to be NP-hard. Several approximate solutions have been suggested for this problem, one of them being Orda's (see IEEE/ACM Transactions on Networking, vol.7, no.3, p.365-74, 1999). We build on some of the suggested schemes therein and apply them to a Cos network. We propose techniques which will compute a set of feasible paths which satisfy the bandwidth constraints of a path set-up request or a service level agreement (SLA). We then choose a path from amongst the feasible paths such that we have good utilization of available bandwidth and balance the load in the network. These techniques are Cos aware and adaptive, they respond to congestion in the network by routing higher classes of traffic away from congested links and nodes. The techniques are shown to be computationally tractable.","PeriodicalId":336991,"journal":{"name":"2002 International Zurich Seminar on Broadband Communications Access - Transmission - Networking (Cat. No.02TH8599)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116753652","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: 2