Title :
A new method for phase synchronization and automatic gain control of linearly modulated signals on frequency-flat fading channels
Author :
Aghamohammadi, Abbas ; Meyr, Heinrich ; Ascheid, Gerd
Author_Institution :
Dept. of Electr. Eng., Khajeh Nassir-al-Deen Toosi Univ. of Technol., Tehran, Iran
fDate :
1/1/1991 12:00:00 AM
Abstract :
An optimal phase synchronization and automatic gain control (AGC) scheme for coherent reception of linearly modulated signals on frequency-flat mobile fading channels is presented. The channel model and receiver performance are described. It is shown that using the technique allows the irreducible error floors (due to random FM) known from the noncoherent methods to be practically eliminated. Depending on the fastness of the fading, large power gains over the noncoherent methods are achieved. Unfavorable analog signal processing and/or the high bandwidth inefficiency of the FDM-pilot coherent methods are also avoided
Keywords :
automatic gain control; fading; mobile radio systems; phase shift keying; synchronisation; telecommunication channels; AGC; MPSK; automatic gain control; channel model; coherent reception; frequency-flat fading channels; irreducible error floors; linearly modulated signals; mobile radio system; phase synchronization; random FM; receiver performance; AWGN; Baseband; Chirp modulation; Fading; Frequency modulation; Frequency synchronization; Gain control; Intersymbol interference; Optimal control; Phase modulation;
Journal_Title :
Communications, IEEE Transactions on
