Microwave Engineering Europe - January/February 2009 - (Page 7)

CONTENTS 7 4 8 The cover represents an abstraction of the amount of data that emerging networks such as LTE and WiMAX will be dealing with. In this issue we cover many aspects of such emerging technology as we head into 2009, considered by many as a crucial point for both LTE and WiMAX. EDITORIAL DIRECTOR JEAN-PIERRE JOOSTING Tel. +32 2 7400056 email: jean-pierre.joosting@eetimes.be CONTRIBUTING EDITORS COLIN HOLLAND email: colin.holland@btinternet.com JOHN WALKO email: jwalko@cmp.com EDITORIAL ADVISORY BOARD Tom Brazil, University College Dublin, Ireland Marco Lisi, Telespazio, Italy Holger Meinel, DaimlerChrysler Aerospace AG, Germany Marco Guglielmi, ESTEC, The Netherlands Chris Snowden, Filtronic Compound Semiconductor/ University of Leeds, UK. News Comment Test & Measurement: Using KPIs to ensure quality in a converging network Network monitoring will play a critical, if not dominant, role in future and upgraded networks. KPI or Key Performance Parameters are essential to addressing this need. Test & Measurement: Ampliﬁer error vector magnitude characterisation using high-speed modular PXI instruments RF device characterization can be very time consuming. Conventional instrumentation tends to be slow even when automated. The use of high-speed PXI modular RF instruments can accelerate test speed and produce accurate results. Test & Measurement: GPS: making a play for femtocells GPS will take a prominent role in femtocell systems in order to provide accurate location and timing information. Veriﬁcation of the GPS or A-GPS receiver’s performance is therefore critical. 4G Technology: Accelerating global WiMAX adoption: The move to Picocell and Femtocell base stations Emerging alternatives to macro base stations exist that deliver as-needed WiMAX coverage in hard-to-reach locations. Micro, pico and femto base stations enable high data rates without over-building the main base station network. The smaller base stations rely on scaled-down versions of WiMAX to minimize initial costs and simplify maintenance. 10 12 15 ADVERTISING PRODUCTION LYDIA GIJSEGOM Tel +32 (0) 2 740 00 50 email: lydia.gijsegom@eetimes.be CIRCULATION & FINANCE LUC DESIMPEL Tel +32 (0) 2 740 0055 email: luc.desimpel@eetimes.be ART MANAGER JEAN-PAUL SPELIERS Tel +32 (0)2 740 0052 email: jean-paul.speliers@eetimes.be ACCOUNTING RICARDO PINTO FERREIRA Tel +32 (0)2 740 0051 email: financial@eetimes.be SALES DIRECTOR GEERT DE VUYST Tel +32 2 740 0050 email: sales@eetimes.be PUBLISHER ANDRE ROUSSELOT Tel +32 (0)2 740 0053 email: andre.rousselot@cmp.com EUROPEAN BUSINESS PRESS A CMP COMPANY 144 Avenue Eugène Plasky 1030 Brussels - Belgium Tel: +32 (0)2 740 00 50 Fax: +32 (0)2 740 00 59 www.mwee.com VAT Registration: BE 461.357.437 RPM: Brussels Company Number: 0461357437 © 2009 E.B.P. SA, a UBM Company All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording or any information storage or retrieval system without the express prior written consent of the publisher. The contents of Microwave Engineering Europe are subject to reproduction in information storage and retrieval systems. Microwave Engineering Europe is published ten times a year. Apply for a free copy of the journal online at www.mwee.com/ subscribe/ Subscriptions: Microwave Engineering Europe is available on subscription to others at 150 Euro. Refunds on cancelled subscriptions will only be provided at the Publisher’s discretion, unless speciﬁcally guaranteed within the terms of the subscription offer. Paid subscription queries tel: +32 2 740 00 50 Printed by Corelio 18 20 4G Technology: Addressing PA efﬁciency for multi-mode wideband handset applications High Accuracy Tracking or HAT technology provides a practical, and easy to implement solution to enhance the efﬁciency of the handset RF subsystem, more than compensating for the efﬁciency lost through compromises like the use of wideband PA devices. It is turning out to be one of a key enabling technologies for 4G. Wi-Fi: mobile feature or fundamental RAN? It’s UMA/GAN technology that makes Wi-Fi a RAN technology, extending the mobile network over IP. Here’s why Wi-Fi is poised to become the highest-performance, lowest-cost, indoor RAN technology on the market. Products Calendar Microwave Engineering Europe ● January/February 2009 ● 23 • • • • • 26 34 www.mwee.com http://www.mwee.com http://www.mwee.com/ http://www.mwee.com

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Microwave Engineering Europe - January 2009 News Contents Comment Using KPIs to Ensure Quality in a Converging Network Amplifier Error Vector Magnitude Characterisation Using High-Speed Modular PXI Instruments GPS: Making a Play for Femtocells Accelerating Global WiMAX Adoption: The Move to Picocell and Femtocell Base Stations Addressing PA Efficiency for Multi-Mode Wideband Handset Applications Wi-Fi: Mobile Feature or Fundamental RAN? Products Calendar

Microwave Engineering Europe - January/February 2009

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