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Performance predictions for cellular switched-beam intelligentantenna systems
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
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