Title :
Performance predictions for cellular switched-beam intelligent antenna systems
Author :
Lopez, Alfred R.
Author_Institution :
Hazeltine Corp., USA
fDate :
10/1/1996 12:00:00 AM
Abstract :
This article presents simple formulas which are helpful in predicting interference reduction and capacity increase provided by switched-beam intelligent antenna systems for cellular telecommunications. The key element of this type of intelligent antenna system is an m×M switching matrix where m is the number of beams and M is the number of radio channel units. The system capacity is related to the complexity of the switching matrix. A 12-beam switched-beam antenna system can provide 100 percent capacity increase over a conventional three-sector (three-beam) antenna system
Keywords :
antenna arrays; array signal processing; cellular radio; channel capacity; cochannel interference; interference suppression; land mobile radio; multibeam antennas; radiofrequency interference; receiving antennas; transmitting antennas; antenna arrays; capacity increase; cellular switched-beam intelligent antenna systems; cellular telecommunications; cochannel interference suppression; interference reduction; performance predictions; radio channel units; signal processing; switching matrix complexity; system capacity; transmit-receive antenna; Band pass filters; Downlink; Frequency; Intelligent systems; Interchannel interference; Joining processes; Radio control; Signal processing; Switches; Working environment noise;
Journal_Title :
Communications Magazine, IEEE
