Title :
Bit error computations for space-time narrowband interference suppression in CDMA communications
Author :
Shah, A. ; Haimovich, A.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ, USA
Abstract :
Spatial and temporal processing are combined to suppress narrowband interference in CDMA communications. Space-time (ST) processing provides degrees of freedom (DOF) for both interference cancellation and diversity combining. Two ST receiver architectures, cascade and joint, are studied. The main contributions of the paper are the development of new analytical expressions of (1) the asymptotic efficiency of each method, (2) the probability density function (PDF) of the signal-to-interference-plus-noise ratio (SINR) at the array output in a frequency selective Rayleigh fading environment, and (3) the average probability of bit error (BER) associated with each method
Keywords :
Rayleigh channels; code division multiple access; diversity reception; error statistics; fading; interference suppression; land mobile radio; probability; radio receivers; radiofrequency interference; spread spectrum communication; CDMA communications; ST receiver architectures; array output; asymptotic efficiency; bit error computations; diversity combining; frequency selective Rayleigh fading environment; interference cancellation; probability density function; signal-to-interference-plus-noise ratio; space-time narrowband interference suppression; space-time processing; Computer architecture; Diversity reception; Frequency; Interference cancellation; Interference suppression; Multiaccess communication; Narrowband; Probability density function; Signal analysis; Signal to noise ratio;
Conference_Titel :
Communications, 1997. ICC '97 Montreal, Towards the Knowledge Millennium. 1997 IEEE International Conference on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-3925-8
DOI :
10.1109/ICC.1997.610012
