A High Efficiency Transmitter with a Delta-Sigma Modulator and a Noise Cancellation Circuit Toru Matsuura, Hisashi Adachi Communication Devices Development Center, Matsushita Electric Industrial Co., Ltd., Kadoma City, Osaka, 5718501, Japan Abstract -- We propose a new architecture for a transmitter with a delta-sigma modulator and a noise cancellation circuit. A data converter including a deltasi

Up-Link Throughput Assessment in W-CDMA Networks Krzysztof Maslanka, Piotr Gajewski, Wojciech Sereda Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland, Phone: +4822 6839517, Fax: +4822 6839038, e-mail: pgajewski-wel.wat.edu.pl Abstract -- The radio-resources management RRM in future CDMA networks is discussed taking into account the variety of services classes in 3G/4G systems

The prediction of propagation losses in urban areas Marian WNUK, Military University of Technology Faculty of Electronics, 2 S. Kaliskiego Street, 00-908 Warsaw, Poland, Phone +48 22 6839228 Abstract ­ This paper presents the UTD modified method of calculations of propagation losses in urban areas. This method involves using optic geometry in propagation model and formula used in UTD method for r

Novel Block Error Rate Model for Rayleigh and Sub-Rayleigh Fading Channels Vanja Subotic1 and Serguei L. Primak1 The University of Western Ontario, Department of Electrical and Computer Engineering 1151 Richmond Street, N6A 5B9, London, ON, Canada, 519-661-2111 Abstract -- A novel method to estimate block error rates (BLER) in the Rayleigh and sub-Rayleigh fading channels is proposed. The suggeste

Digital Pre-distortion Linearizer B. S. Virdee1, B. Banyamin2 1 London Metropolitan University, Dept. of Computing, Communications Technology & Mathematics, 166-220 Holloway Road, London N7 8DB, U.K., +44 2071332511 2 NEC Technologies U.K. Limited, European Radio Design Centre, Imperium, Imperial Way, Reading, Berkshire RG2 0TD, U.K. pre-distortion of each channel is solely dependent on the feedb

An LTCC-based 5-6 GHz Receiver with Integrated Antenna Luca Pergola1, Rüdiger Vahldieck1, Uhland Göbel2, Peter Nüchter2 1 Swiss Federal Institute of Technology, Laboratory for Field Theory and Microwave Electronics, Gloriastrasse 35, CH ­ 8092 Zürich, Switzerland. Phone: +41 1 63 20727. Fax: +41 1 63 21647. E-mail: pergola-ifh.ee.ethz.ch 2 HUBER & SUHNER AG, Pfäffikon ZH, Switzerland. coupling al

A CPW-Fed Horn-Shaped Slot Array Antenna For 5GHz WLAN Access Point Shih-Yuan Chen1 and Powen Hsu2 Graduate Institute of Communication Engineering and 2Department of Electrical Engineering National Taiwan University, Taipei 10617, Taiwan Tel: +886-2-23635251 ext. 544, Fax: +886-2-23651744 E-mail: phsu-cc.ee.ntu.edu.tw Abstract -- A 6-element horn-shaped slot array antenna fed by a coplanar wavegui

Simulation Studies of Interference Causing of Time Jitter in TD-CDMA Krzysztof Maslanka, Piotr Gajewski, Pawe Hemon Military University of Technology, Kaliskiego 2, 00-908 Warsaw, Poland, Phone: +4822 6839517, Fax: +4822 6839038, e-mail: pgajewski-wel.wat.edu.pl Abstract -- The TD-CDMA technique is one of the modes assumed to use in 3G UMTS networks. The synchronization error influence on the inte

Pre-, Post-, and Combined-Equalization Single-User Bounds for MC-CDMA Ivan Cosovic1 , Michael Schnell1 , and Andreas Springer2 German Aerospace Center (DLR), Inst. of Communications and Navigation, 82234 Wessling, Germany, E-Mail: Ivan.Cosovic-dlr.de Michael.Schnell-dlr.de 2 University of Linz, Inst. of Commun. and Inf. Engineering, 4040 Linz, Austria, E-Mail: A.Springer-icie.jku.at c1 x 1 Abstra

The Linear Theory and Engineering Design of the Phase Invariant Controlled Attenuator O.V. Stoukatch Tomsk Polytechnic University 30 Lenin Avenue, Tomsk, 634050, Russia, e-mail: ieee-main.tusur.ru Abstract -- On the base of the linear system theory a condition for minimum of the phase shift from attenuation in a voltage controlled attenuator (VCA) is founded. The base structure of the VCA is inve