Application of Generalized Sidelobe Canceller and Sparse Array in Relieving Congestion in Multi-beam CDMA Systems

Provided by: Science & Engineering Research Support soCiety (SERSC)
Topic: Mobility
Format: PDF
During operation of a cellular system, unexpected growth of traffic may develop in various regions, create traffic congestion. Among many methods to solve problem of large blocking probability, dynamic cell sectoring using smart array antenna is especially interested. In this paper, the authors investigate the relationship between antenna parameters (main beamwidth, sidelobe attenuation...) and blocking probability of multibeam CDMA system under the presence of hotbeam. From that, they consider deployment sectoring dynamically based on Generalized Sidelobe Canceller (GSC) structure to get blocking probability below 1%.

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