Realistic simulations of CDMA mobile radio systems using joint detection and coherent receiver antenna diversity
- 17 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Due to time variant multipath propagation, both intersymbol interference and multiple access interference occur at CDMA receivers. These degrading effects can be combatted by joint detection (JD) techniques. In order to reduce the performance impairments resulting from time variance, coherent receiver antenna diversity (CRAD) can be used. A system model of CDMA mobile radio systems using various JD techniques in combination with CRAD is introduced. This system model is an evolution of the pan-European GSM and takes important real world aspects such as imperfect channel estimation, nonlinear amplification and D/A and A/D conversion into account. The viability of JD with CRAD is demonstrated by bit error rate simulations of this system model. It is shown that by using JD with two receiver antennas in bad urban areas, E/sub bN/sub 0/<8 dB per antenna is sufficient for a bit error rate of 10/sup -2/, and E/sub bN/sub 0/<11 dB per antenna is required for a bit error rate of 10/sup -3/.Keywords
This publication has 7 references indexed in Scilit:
- Performance evaluation of a novel M-detector for coherent receiver antenna diversity in a GSM-type mobile radio systemIEEE Journal on Selected Areas in Communications, 1995
- Laurent's representation of binary digital continuous phase modulated signals with modulation index 1/2 revisitedIEEE Transactions on Communications, 1994
- Optimum and suboptimum channel estimation for the uplink of CDMA mobile radio systems with joint detectionEuropean Transactions on Telecommunications, 1994
- Linear unbiased data estimation in mobile radio systems applying CDMAIEEE Journal on Selected Areas in Communications, 1993
- A statistical discrete-time model for the WSSUS multipath channelIEEE Transactions on Vehicular Technology, 1992
- Increased CDMA system capacity through adaptive cochannel interference regeneration and cancellationIEE Proceedings I Communications, Speech and Vision, 1992
- Frequency-Independent and Frequency-Dependent Nonlinear Models of TWT AmplifiersIEEE Transactions on Communications, 1981