Title :
Performance aspects of transmit antenna diversity (TxAD) techniques for UTRA-TDD
Author_Institution :
Technologiezentrum, T-Nova Deutsche Telekom Innovationsgesellschaft mbH, Darmstadt, Germany
Abstract :
The application of transmit antenna diversity (TxAD) to the TDD mode of UMTS is considered. After comparing TxAD with coherent receiver antenna diversity (CRAD) which is used in the uplink of all major digital mobile radio systems, the advantages and drawbacks of TxAD are discussed. Furthermore, simulation results for non-adaptive TxAD techniques are presented. The SNR (signal to noise ratio) gain achievable by the application of TxAD ranges from 0.5 dB to 2.7 dB, depending on the propagation environment as well as the TxAD technique applied
Keywords :
digital radio; diversity reception; land mobile radio; packet radio networks; transmitting antennas; SNR gain; TDD mode; UMTS; UTRA-TDD; coherent receiver antenna diversity; digital mobile radio systems; non-adaptive TxAD techniques; performance; propagation environment; signal to noise ratio; simulation results; transmit antenna diversity; uplink; 3G mobile communication; Antenna measurements; Base stations; Circuits; Land mobile radio; Mobile antennas; Receivers; Receiving antennas; Signal to noise ratio; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851308
