Title :
Two-stage maximum likelihood estimation for diversity combining in digital mobile radio
Author_Institution :
Dept. of Electr. Eng., Calgary Univ., Alta., Canada
fDate :
4/1/1992 12:00:00 AM
Abstract :
For space diversity, it is shown that it is related to maximal-ratio combining (MRC). Unlike MRC, it allows the receiver to collect diversity signals without gain adjustments or cophasing. Some worst-case bit error rate (BER) simulation results that show the influence of time delay spread, Doppler, shadow loss, and diversity for a seven-cell cluster using quadrature modulation are presented
Keywords :
Doppler effect; digital radio systems; diversity reception; mobile radio systems; parameter estimation; BER; Doppler; MLE; MRC; bit error rate; digital mobile radio; diversity combining; diversity reception; maximal-ratio combining; maximum likelihood estimation; quadrature modulation; seven-cell cluster; shadow loss; space diversity; time delay spread; Bit error rate; Delay effects; Diversity reception; Fading; Jitter; Land mobile radio; Maximum likelihood estimation; Pulse modulation; Receivers; Statistics;
Journal_Title :
Communications, IEEE Transactions on
