Title :
Impact of the breakpoint distance on the reverse link capacity of a CDMA Manhattan like microcellular system
Author :
Cruz-Pérez, Felipe A. ; Lara-Rodríguez, Domingo
Author_Institution :
Dept. of Elect. Eng., CINVESTAV-IPN, Mexico City, Mexico
Abstract :
We study the impact of the breakpoint distance on the capacity of a Manhattan like microcellular CDMA system. We consider the other-cell interference as a Gaussian random variable and we obtain its mean and variance as a function of the breakpoint distance. Also, the distribution of the BER as function of the breakpoint distance, the cell radio, the number of users per cell and the voice activity factor is obtained. We find the capacity range from 18 to 31 users per microcell for breakpoint to cell radio ratio greater than 3 and lower than 0.6, respectively, with a BER less than 10-3 and voice activity factor of 3/8
Keywords :
Gaussian processes; channel capacity; code division multiple access; error statistics; microcellular radio; multiuser channels; radio links; radiofrequency interference; radiowave propagation; random processes; voice communication; BER distribution; CDMA; Gaussian random variable; Manhattan like microcellular system; breakpoint distance; breakpoint to cell radio ratio greater; capacity; cell radio; mean; other-cell interference; propagation model; reverse link capacity; variance; voice activity factor; Base stations; Bit error rate; Cities and towns; Interference; Microcell networks; Multiaccess communication; Propagation losses; Radio transmitters; Random variables; Urban areas;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on
Conference_Location :
Sun City
Print_ISBN :
0-7803-4281-X
DOI :
10.1109/ISSSTA.1998.726239
