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A two-element adaptive antenna array for IS-136 PCS base stations

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3 Author(s)
Winters, J.H. ; AT&T Labs.-Res., Red Bank, NJ, USA ; Martin, C.C. ; Zhuang, T.

We describe computer simulation and laboratory performance results of a real-time two-element adaptive antenna array testbed for the uplink of a 1.9-GHz IS-136 PCS base station. Our simulations and real-time experimental results with a channel emulator show less than a 1-dB implementation loss as compared to theoretical results for the noise-only case. With interference, at low fading rates the implementation loss to is only a few decibels. However, the performance degrades with increasing fading rate, such that the adaptive array performance is similar to maximal ratio combining at 60-m/h fading rates (179 Hz at 1.9 GHz).

Published in:

Communications Letters, IEEE  (Volume:3 ,  Issue: 3 )