1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)最新文献

Tabu search: an efficient tool for designing DS-CDMA spreading sequences 禁忌搜索:设计DS-CDMA扩频序列的有效工具

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.726196

C. Boulanger, L. Ouvry

引用次数: 4

Wideband propagation measurements in corridors at 5.3 GHz 5.3 GHz通道中的宽带传播测量

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.723837

J. Kivinen, P. Vainikainen

引用次数: 14

Telecommunication applications over the low voltage power distribution grid 低压配电网上的电信应用

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.726199

T. Waldeck, M. Busser, K. Dostert

{"title":"Telecommunication applications over the low voltage power distribution grid","authors":"T. Waldeck, M. Busser, K. Dostert","doi":"10.1109/ISSSTA.1998.726199","DOIUrl":"https://doi.org/10.1109/ISSSTA.1998.726199","url":null,"abstract":"Using low voltage energy distribution grids as high-speed communication networks opens up the possibility to utilities to establish widespread local area networks for telecommunication services such as telephony and Internet access without the necessity of additional cabling. Since communication systems, suitable for high-speed transmission over electrical power lines, are not available yet, considerable efforts are currently being spent on designing such systems. Due to the special properties of power distribution grids as communication channels, profound investigations of the channel properties must have been done before a successful development of reliable and efficient systems is possible. At the University of Karlsruhe extensive measurements of typical channel properties are currently under way. Some of the results are presented in this work, giving a first impression of the most important channel properties. However, the main goal of this paper is to investigate and describe suitable strategies for advanced multiple access systems.","PeriodicalId":116377,"journal":{"name":"1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129622904","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: 19

Hough detector with adaptive non-coherent integration for target detection in pulse jamming 基于自适应非相干积分的Hough检测器用于脉冲干扰中目标检测

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.722531

V. Behar, C. Kabakchiev

引用次数: 17

Doppler and multipath properties of quadriphase signal design without co-channel interference nor detection sidelobe for uplink in approximately synchronized cellular CDMA systems 近似同步蜂窝CDMA系统中无共信道干扰和检测旁瓣的四相信号设计的多普勒和多径特性

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.723836

T. Imoto, N. Suehiro

{"title":"Doppler and multipath properties of quadriphase signal design without co-channel interference nor detection sidelobe for uplink in approximately synchronized cellular CDMA systems","authors":"T. Imoto, N. Suehiro","doi":"10.1109/ISSSTA.1998.723836","DOIUrl":"https://doi.org/10.1109/ISSSTA.1998.723836","url":null,"abstract":"Power control or interference cancellation requires a heavy cost for the uplink in mobile CDMA systems. Suehiro (1993, 1994) proposed a 4-phase signal design for approximately synchronized CDMA systems without co-channel interference. In the proposed 4-phase signal design, each user is assigned a carrier frequency, some 4-phase sequence of finite length with pseudo-periodic property and comb-shaped spectrum, and a matched filter for the central large part of the assigned sequence. When the assigned sequence of the comb-shaped spectrum is modulated by the carrier the obtained signal has a comb-shaped spread spectrum. The carriers are assigned to each user so that any two of the users have an orthogonal comb-spectrum to each other. Because each user has a filter which is matched to the central part of the assigned sequence, no user receives co-channel interference near the main detection pulse under the condition of approximate synchronization. The Doppler effect and the multipath properties are simulated. When the carrier frequencies are about 2000 MHz, the signals works almost without co-channel interference under the Doppler shift at 1000 km/h. This result of simulation shows the usefulness of the 4-phase signal design without co-channel interference for an approximately synchronized uplink in cellular CDMA systems.","PeriodicalId":116377,"journal":{"name":"1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1998-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129096228","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: 0

Doppler estimation for fast acquisition in spread spectrum communication systems 扩频通信系统中快速采集的多普勒估计

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.726206

P. Grant, S. M. Spangenberg, I. Scott, S. Mclaughlin, G. Povey, D. Cruickshank

引用次数: 28

A comparison of uplink channel estimation techniques for MC/JD-CDMA transmission systems MC/JD-CDMA传输系统的上行信道估计技术比较

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.723865

B. Steiner, R. Valentin

引用次数: 5

Minimax algorithm application in ECF and ECUI design 极大极小算法在ECF和ECUI设计中的应用

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.722530

A. Petrovic, A. Zejak, B. Zrnic, I. Simic

引用次数: 1

An algorithm for joint direction of arrival, time-delay and frequency-shift estimation in asynchronous DS-CDMA systems 一种异步DS-CDMA系统的到达方向、时延和频移联合估计算法

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.723854

M. Eric, S. Parkvall, M. Dukic, M. Obradovic

引用次数: 15

Chip-level receivers in optical overlapping PPM-CDMA 光重叠PPM-CDMA中的芯片级接收机

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI: 10.1109/ISSSTA.1998.722510

H. Shalaby

引用次数: 2