Title :
The enhancement of capacity in cellular mobile communication systems using smart antenna
Author :
Xiang, Wei-Dong ; Yao, Yan
Author_Institution :
State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China
Abstract :
An analytical expression of the signal envelope under Rayleigh and lognormal distribution is derived, which coincides with the simulated data. The deviation which is widely used by a number of authors is also presented. It acts as an accurate foundation for further theoretical research. The statement that smart antenna can increase the capacity of cellular systems is verified by theory and simulation simultaneously. The conclusion shows that the enhancement ratio of the spectral efficiency is more than three, when a smart antenna is adopted with 50 degrees main beam and side lobe of -40 dBc
Keywords :
adaptive antenna arrays; array signal processing; cellular radio; channel capacity; direction-of-arrival estimation; fading channels; multipath channels; radiowave propagation; spectral analysis; DOA measurement; Rayleigh distribution; analysis expression; capacity enhancement; cellular mobile communication systems; lognormal distribution; main beam; multipath fading; propagation model; side lobe; signal envelope; simulated data; simulation; smart antenna; spectral efficiency; Adaptive arrays; Antennas and propagation; Assembly; Base stations; Digital communication; Fading; Microwave antennas; Mobile antennas; Mobile communication; Propagation losses;
Conference_Titel :
Communication Technology Proceedings, 1998. ICCT '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
7-80090-827-5
DOI :
10.1109/ICCT.1998.743395
