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Adaptive coded modulation with receive antenna diversity and imperfect channel knowledge at receiver and transmitter

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3 Author(s)
Duong, D.V. ; Dept. of Electron. & Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim, Norway ; Oien, G.E. ; Hole, K.J.

Unifying and generalizing the works of Cai and Giannakis and Oien et al., the performance of an adaptive trellis-coded modulation system where receive antenna diversity is implemented by means of maximum ratio combining is analyzed and optimized. As in the work of Cai and Giannakis, the analysis is done in the presence of both estimation and prediction errors. Rayleigh fading on each subchannel is considered, with the estimation and prediction being performed independently on each subchannel. The system optimization process is done in such a way that the throughput is maximized under a bit-error-rate (BER) constraint. The numerical example employs a Jakes-fading spectrum and shows how the power should be distributed between pilot and data symbols and how often pilot symbols should be transmitted for maximum throughput under an instantaneous (with respect to the predicted channel) BER constraint.

Published in:

Vehicular Technology, IEEE Transactions on  (Volume:55 ,  Issue: 2 )

Date of Publication:

March 2006

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