Title :
Carrier Recovery Algorithm for Bandwidth-Efficient Coded Modulations at Low Signal-to-Noise Ratios
Author :
Nezami, Mohamed K.
Author_Institution :
Electr. Eng. Dept. of Princess, Sumaya Univ. of Technol., Amman
Abstract :
A new carrier recovery algorithm for bandwidth efficient modulations at low signal-to-noise ratios (SNR) is proposed using only 5 to 10 percent of overhead symbols. It obtains carrier offsets without using conventional phase differentiation, thus avoiding noise enhancement, which is a limiting factor at low SNR, and also does not utilize periodical preambles, which have undesired emissions and probability of false acquisition.
Keywords :
modulation coding; bandwidth-efficient coded modulations; carrier recovery algorithm; low signal-to-noise ratio; overhead symbols; AWGN; Additive white noise; Bandwidth; Baseband; Frequency estimation; Gaussian noise; Modulation coding; Phase estimation; Signal processing; Signal to noise ratio; Carrier recovery; Frequency acquisition; synchronization;
Conference_Titel :
TENCON 2005 2005 IEEE Region 10
Conference_Location :
Melbourne, Qld.
Print_ISBN :
0-7803-9311-2
Electronic_ISBN :
0-7803-9312-0
DOI :
10.1109/TENCON.2005.301328
