Title :
Optimum diversity combining and equalization in digital data transmission with applications to cellular mobile radio. I. Theoretical considerations
Author :
Balaban, Philip ; Salz, Jack
Author_Institution :
AT&T Bell Lab., Holmdel, NJ, USA
fDate :
5/1/1992 12:00:00 AM
Abstract :
A comprehensive theory for Nth-order space diversity reception combined with various equalization techniques in digital data transmission over frequency-selective fading channels is developed. The channels are characterized by N arbitrary impulse responses possessing random parameters as well as N additive Gaussian noise sources. Various combiner-equalizers that minimize the mean-squared error are determined. Formulas are presented for the attainable least-mean-squared errors and upper bounds on average probabilities of error. The theory is applied to optimize system parameters and to predict performance for QAM data transmission operating over a model for the mobile radio channel. For this model, estimates of average attainable error rates and outage probabilities are provided as functions of system parameters. In the channel models the uncoded data rates as well as Shannon capacity are regarded as random variables
Keywords :
cellular radio; digital radio systems; diversity reception; equalisers; error statistics; fading; Gaussian noise; Nth-order space diversity reception; QAM data; Shannon capacity; arbitrary impulse responses; average attainable error rates; cellular mobile radio; combiner-equalizers; digital data transmission; equalization techniques; error probabilities; frequency-selective fading channels; mean-squared error; outage probabilities; system parameters; Additive noise; Data communication; Diversity reception; Error analysis; Frequency-selective fading channels; Gaussian noise; Land mobile radio; Predictive models; Quadrature amplitude modulation; Upper bound;
Journal_Title :
Communications, IEEE Transactions on
