2010 17th International Conference on Telecommunications最新文献_第4页

Tunable Fabry-Perot interferometer based on fiber Bragg gratings 基于光纤光栅的可调谐法布里-珀罗干涉仪

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478865

I. Ashry, H. Shalaby

引用次数: 5

On the optimization of power assignment to support multicast applications in HAP-based systems 基于hap系统中支持多播应用的功率分配优化研究

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478743

G. Araniti, A. Iera, A. Molinaro, A. Raschellà, A. Umbert

引用次数: 4

Spectral-domain analysis of a resistive patch antenna with uniaxial substrate 单轴基板电阻贴片天线的谱域分析

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478772

A. Boufrioua

引用次数: 6

A cross layer protocol with hybrid multi channel MC-CDMA/OFDMA 混合多通道MC-CDMA/OFDMA的跨层协议

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478811

A. N. Plymoth

引用次数: 2

On the feasibility of Vehicle-to-Internet communications using unplanned wireless networks 关于使用计划外无线网络的车联网通信的可行性

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478778

I. Amdouni, F. Filali

{"title":"On the feasibility of Vehicle-to-Internet communications using unplanned wireless networks","authors":"I. Amdouni, F. Filali","doi":"10.1109/ICTEL.2010.5478778","DOIUrl":"https://doi.org/10.1109/ICTEL.2010.5478778","url":null,"abstract":"Advances in wireless communication technologies as well as the low cost of wireless equipment have increased the ubiquity of network connectivity, as is illustrated by the large deployment of IEEE 802.11 access points (APs). Anytime, anywhere, users are being connected to networks and consequently they expect more services on their mobile devices. Internet access from vehicles, in particular short lived connections, to roadside APs is one of the most challenging of these services. We wonder if those APs could offer Internet connectivity to vehicular networks especially for delay-tolerant applications. A preliminary requirement to make this possible is to provide the vehicle communication router with a list of available APs in its neighborhood. In this paper, we introduce ScanCar, a layered measurement system for wireless infrastructure discovery, which is integrated in the vehicle's router to build and maintain a database of WiFi APs within the vehicle's range. Then, we report the results of a real measurement study conducted on the data set ScanCar provided through wardriving in different regions of the French Riviera. For instance, in Antibes Juan-les-Pins, which is a residential city, our findings show that the scan duration of the 2369 discovered APs, varies between 200 ms and 664 ms. Despite that among those APs only 8.2% were not protected, we found that on average, clients can potentially remain in at least one AP's coverage area for 23.86 seconds, which can be considered as a very promising result toward the development of services for vehicle-to-Internet opportunistic communications.","PeriodicalId":208094,"journal":{"name":"2010 17th International Conference on Telecommunications","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131454972","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

Reliability-Ordered DFE for vector systems 矢量系统的可靠性有序DFE

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478835

B. Cardiff, M. Flanagan, A. Fagan

{"title":"Reliability-Ordered DFE for vector systems","authors":"B. Cardiff, M. Flanagan, A. Fagan","doi":"10.1109/ICTEL.2010.5478835","DOIUrl":"https://doi.org/10.1109/ICTEL.2010.5478835","url":null,"abstract":"In this paper, detectors are considered for a general class of vector systems. A novel detector, the Reliability-Ordered Decision Feedback Equalizer (RO-DFE), is presented in which the ordering of decisions is done in accordance with reliability metrics helping to mitigate the problem of the error propagation inherent to all DFEs. The proposed structure derives the reliability metrics from an initial linear MMSE equalizer. This yields the major advantage that soft decisions from this equalizer can be reused within the DFE resulting in only a minor overall complexity increase. For an important class of channel independent OFDM pre-coders, the equivalence between a hypothetical detector and one operating on an equivalent AWGN channel is established. This is then used to derive a lower bound on the performance of a Maximum Likelihood (ML) detector in terms of Bit Error Rate for QPSK, and in terms of Symbol Error Rate for M-ary QAM over a maximum diversity Rayleigh fading channel. Simulation results are presented showing significant gains of the proposed detection system over conventional ones. The newly derived ML lower bound for QPSK is also compared to a simulated ML implementation and found to be accurate under good SNR conditions.","PeriodicalId":208094,"journal":{"name":"2010 17th International Conference on Telecommunications","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128174241","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

Distributed relay selection strategy based on source-relay channel 基于源中继信道的分布式中继选择策略

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478647

Zied Bali, W. Ajib, H. Boujemaa

引用次数: 18

A novel routing with data mining in disconnected mobile ad-hoc networks 一种基于数据挖掘的非连接移动自组网路由方法

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478809

B. Wu, F. Lin, Jiliu Zhou

引用次数: 1

An overview on Underwater Acoustic Sensor Networks 水声传感器网络研究综述

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478812

Wang Yifan, Zhang Zaichen, Bi Guangguo

引用次数: 8

Outage performance of Decode-and-Forward partial selection in Nakagami-m fading channels Nakagami-m衰落信道中译码前向部分选择的中断性能

2010 17th International Conference on Telecommunications Pub Date : 2010-04-04 DOI: 10.1109/ICTEL.2010.5478803

M. Benjillali, Mohamed-Slim Alouini

引用次数: 9