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Decision-directed compensation of modulation-index drift for high bit rate equalized GMSK radio LANs

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3 Author(s)
Wern-Ho Sheen ; Dept. of Electr. Eng., Nat. Chung Cheng Univ., Taiwan ; Chin-Peng Tsai ; Ten Long Dang

For an equalized Gaussian minimum shift keying system, the modulation-index drift from 0.5 associated with a simple direct FM implementation may result in a severe degradation on the equalizer performance. A decision-directed compensation for the drift is proposed. Computer simulations show that a large part of the performance loss due to modulation-index drift can be recovered with the proposed method.

Published in:

IEEE Communications Letters  (Volume:3 ,  Issue: 5 )