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Published May 1981 | Published
Journal Article Open

Guest Editor's Prologue: Special Section on Communications Over Nonlinear Channels

Lesh, James R.

Abstract

If power is abundant and components are ideal, communication using all linear components may be achievable. However, in most practical communication systems, power is severely limited and the inefficiencies associated with actual linear power amplifier stages are intolerable. For these reasons, most communication systems employ highly nonlinear power amplifiers. Whether the resulting channel is linear or non-linear depends on ones definition of the channel. If the channel is defined as being from the input of the transmitter to the output of the demodulator at the receiver, the channel is clearly nonlinear, even through the electromagnetic channel may be completely linear.

Additional Information

© 1981 IEEE.

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