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SPATIAL RADIO CHANNEL MODEL FOR UMTS IN URBAN SMALL CELLS AREA
SPATIAL RADIO CHANNEL MODEL FOR UMTS IN URBAN SMALL CELLS AREA Philippe Laspougeas, Patrice Pajusco, Jean-Claude Bic France Télécom R&D, 6 avenue des Usines, BP 382, 90007 Belfort Cedex, France philippe.laspougeas@francetelecom.fr - patrice.pajusco@francetelecom.fr - jeanclaude.bic @francetelecom.fr Abstract An angular and temporal selectivity analysis is carried out from a wideband measurement
Directional Channel Modeling at the Mobile Station
Directional Channel Modeling at the Mobile Station J. E. Dietert, B. Rembold Institute of High Frequency Technology RWTH Aachen University of Technology dietert@ihf.rwth-aachen.de Melatener Straße 25 D-52056 Aachen The demand for accurate channel modeling has grown rapidly, especially for the use in mobile communications systems. In addition to statistical channel models for the base station orien
Spatio-temporal Characterisation for Indoor and Outdoor Propagation channel at 1.8 GHz
Spatio-temporal Characterisation for Indoor and Outdoor Propagation channel at 1.8 GHz R. Cosquer, T. Quiniou, A. Affandi, G. El Zein, J. Citerne URER/INSA, 20 Av. des Buttes de Coësmes, 35043 Rennes Cedex, France Ronan.cosquer@insa-rennes.fr beamforming method or an array associated with a high resolution method [2]. The indoor measurement system used for frequencyangular domain characterization
DIRECT MEASUREMENT OF DIRECTION OF ARRIVAL OF MULTIPLE SIGNALS
DIRECT MEASUREMENT OF DIRECTION OF ARRIVAL OF MULTIPLE SIGNALS David Kernévès, Bernard Huyart, Xavier Begaud, Eric Bergeault and Louis Jallet Ecole Nationale Supérieure des Télécommunications, 46 rue Barrault, 75634 Paris Cedex 13, France kerneves@com.enst.fr Abstract The paper presents the direction finding of multiple radio frequency signals from an array of antennas with an array of six-port
DOES DOWNLINK NULLING MAKE SENSE FOR COMBINED PACKET/CIRCUIT SWITCHED WIRELESS SYSTEMS?
DOES DOWNLINK NULLING MAKE SENSE FOR COMBINED PACKET/CIRCUIT SWITCHED WIRELESS SYSTEMS? Klaus Hugl1 and Ernst Bonek1,2 1 Institut für Nachrichtentechnik und Hochfrequenztechnik, Technische Universität Wien Gußhausstraße 25/389, A-1040 Wien, Austria Klaus.Hugl@nt.tuwien.ac.at, Ernst.Bonek@nt.tuwien.ac.at 2 Forschungszentrum Telekommunikation Wien (FTW) Maderstraße 1/9, A-1040 Wien, Austria I. IN
A Comparison of ifferent Algorithms for Satellite Diversity in Low Earth Orbit Satellite Systems
A Comparison of Different Algorithms for Satellite Diversity in Low Earth Orbit Satellite Systems Martin Döttling, Dirk Didascalou, Werner Wiesbeck Institut für Höchstfrequenztechnik und Elektronik (IHE) Universität Karlsruhe D-76128 Karlsruhe, Germany Phone: ++49-721-608 62 57, Fax: ++49-721-69 18 65 E-Mail: Martin.Doettling@etec.uni-karlsruhe.de Abstract This paper reports the results of a syst
Statistical Analysis of RF Exposure from Handsets and Base Station
6WDWLVWLFDO $QDO\VLV RI 5) ([SRVXUH IURP +DQGVHWV DQG %DVH 6WDWLRQ Joe Wiart, Christian Dale, Naila Ben Djebara, Man Fai Wong FRANCE TELECOM - FTR&D DMR/IIM 38-40 Rue du Général Leclerc 92794 Issy Moulineaux Cedex 9 France. joe.wiart@francetelecom.fr , ,1752'8&7,21 Radio-frequencies (RF) have been used for a long time, but with mobile phones, for the last few years there has been an exponential g
OPTIMIZING INDOOR BASE STATION LOCATIONS
OPTIMIZING INDOOR BASE STATION LOCATIONS Lajos Nagy, Lóránt Farkas, Barnabás Hegyi Budapest University of Technology and Economics, Microwave Telecommunications Department, 3, Goldmann György tér, 1111, Budapest, Hungary t-nagy@nov.mht.bme.hu - farkas@nov.mht.bme.hu Abstract - Genetic Algorithms (GA) are increasingly being applied to difficult problems. Genetic Algorithm optimizers are robust, sto
GPRS Radio Network Capacity Considering Coexisting Circuit Switched Traffic Sources
GPRS Radio Network Capacity Considering Coexisting Circuit Switched Traffic Sources Peter Stuckmann, Frank M¨ ller u Communication Networks Aachen University of Technology E-Mail: pst fmu @comnets.rwth-aachen.de WWW: http://www.comnets.rwth-aachen.de/~ pst fmu ABSTRACT In this paper the radio network capacity needed for the General Packet Radio Service (GPRS) in coexistence with conventional circu
IEEE 802.11 and HIPERLAN/2 Performance and Applications
IEEE 802.11 and HIPERLAN/2 Performance and Applications Ad Kamerman and Anand R. Prasad Lucent Technologies WCND, Zadelstede 1-10, 3431 JZ Nieuwegein, The Netherlands kamerman@lucent.com - aprasad1@lucent.com Abstract IEEE 802.11 and HIPERLAN/2 are two wireless LANs standards existing and under completion. These two have the same PHY (physical) layer for 5 GHz but different MACs (medium acces