IEEE Second Symposium on Communications and Vehicular Technology in the Benelux最新文献_第4页

Channel adapted RAKE receiver (CARAKE) for coherent uplink demodulation 用于相干上行解调的信道自适应RAKE接收机(CARAKE)

IEEE Second Symposium on Communications and Vehicular Technology in the Benelux Pub Date : 1994-11-02 DOI: 10.1109/SCVT.1994.574158

S. Tateesh, R. Tafazolli, B. Evans

引用次数: 2

DS-CDMA techniques for mobile and personal satellite communications: An overview 移动和个人卫星通信的DS-CDMA技术:概述

IEEE Second Symposium on Communications and Vehicular Technology in the Benelux Pub Date : 1994-11-02 DOI: 10.1109/SCVT.1994.574153

R. De Gaudenzi, T. Garde, F. Giannetti, M. Luise

{"title":"DS-CDMA techniques for mobile and personal satellite communications: An overview","authors":"R. De Gaudenzi, T. Garde, F. Giannetti, M. Luise","doi":"10.1109/SCVT.1994.574153","DOIUrl":"https://doi.org/10.1109/SCVT.1994.574153","url":null,"abstract":"The recent application of code division multiple access (CDMA) to commercial terrestrial radio networks suggested the possibility of extending the same access technique to high-efficiency low-cost satellite systems. A great research and development effort has therefore started, and is still in progress, to fulfill the requirements of modern commercial satellite networks, namely: low-cost user equipments on one side and power and spectral efficiency on the other. The aim of this contribution is to address the main topics in the development of such systems for satellite-based mobile and personal communications. More specifically, we investigate first the inherent trade-off between coding and spreading, then we touch upon the techniques for the minimisation of the self-noise effect, and the related issues of power control, multi-user detection and satellite diversity. As a key factor in the successful deployment of CDMA networks, we shortly review some technological aspects related to an efficient modem design via digital signal processing techniques, and the possible consequent low-cost, small-size application-specific integrated circuit (ASIC) implementation. The final part of the paper deals with some system-related issues, like the effect of the nonlinear satellite transponder and the mobile multipath channel on the multiplexed user signal, and highlights the applicability of CDMA to the emerging new-generation services, such as digital audio broadcasting (DAB), wideband mobile networks, and the like.","PeriodicalId":236384,"journal":{"name":"IEEE Second Symposium on Communications and Vehicular Technology in the Benelux","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130221327","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: 10

The performance of a reduced length RAKE receiver for DS/SS communication over multipath fading channels with random path delays 在随机路径延迟的多径衰落信道中，减长RAKE接收机的DS/SS通信性能

IEEE Second Symposium on Communications and Vehicular Technology in the Benelux Pub Date : 1994-11-02 DOI: 10.1109/SCVT.1994.574146

K. Wuyts, M. Moeneclaey

引用次数: 0

Propagation of broadcast signals into buildings at 762 MHz 以762兆赫向建筑物内传播广播信号

IEEE Second Symposium on Communications and Vehicular Technology in the Benelux Pub Date : 1994-11-02 DOI: 10.1109/SCVT.1994.574141

P. de Bot, A. Wijlaars, H. Vermeer, H. Kollenbrander

{"title":"Propagation of broadcast signals into buildings at 762 MHz","authors":"P. de Bot, A. Wijlaars, H. Vermeer, H. Kollenbrander","doi":"10.1109/SCVT.1994.574141","DOIUrl":"https://doi.org/10.1109/SCVT.1994.574141","url":null,"abstract":"The paper describes measurements of indoor reception of a 7 MHz OFDM signal transmitted at a center frequency of 762 MHz. The channel impulse response and the selectivity characteristics in the frequency domain and the spatial domain are measured. Furthermore, an indication is given of the effect of building attenuation. Building penetration loss is due to attenuation or shielding of the radio signals by walls, floors and ceilings. Using over 300 measurement runs in different rooms at different floors in 40 residential houses, apartment buildings and office buildings in Eindhoven, the building penetration loss can be determined. From the measurements, it can for example be determined that the typical building penetration loss in 90% of the buildings (macro-scale) will be smaller than 15 dB. If one decreases the height of an outdoor receiving antenna, the received signal power will usually decrease as well. This is partially due to shielding by buildings or other obstacles in the line-of-sight path. From the measurements, it appears that the combined height/building penetration loss compared with a 10 m outdoor antenna, will be less than 22 dB in 90% of the buildings.","PeriodicalId":236384,"journal":{"name":"IEEE Second Symposium on Communications and Vehicular Technology in the Benelux","volume":"8 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125853631","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: 9