Performance investigation of the modified costas carrier recovery loop for a QPSK modulated signal in the presence of co-channel interference

Name: Performance investigation of the modified costas carrier recovery loop for a QPSK modulated signal in the presence of co-channel interference
Author: Heidarpour, Ali Reza, Montazerolghaem, M. A., Saberali, S. M.

İsim	Performance investigation of the modified costas carrier recovery loop for a QPSK modulated signal in the presence of co-channel interference
Yazar	Heidarpour, Ali Reza, Montazerolghaem, M. A., Saberali, S. M.
Basım Tarihi:	2016
Basım Yeri	- IEEE
Konu	QPSK modulation, Carrier recovery, Co-channel interference, AFC loops, Costas loop
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	2-s2.0-84994071407
Kayıt Numarası	249dae89-c814-41fb-885f-cfe267af1f95
Tarih	2016
Örnek Metin	One of the important challenges in communication systems is drift in the carrier frequency of received signal due to the clock skew and Doppler effect. Every communication receiver requires an automatic frequency control (AFC) loop to estimate the carrier drift in the received signal. One of the well-known AFC loops in communication systems is the Costas loop. In this paper a modified version of Costas loop for binary phase-shift keying (BPSK) modulation is presented which is capable to estimate the carrier frequency of the quadrature phase-shift keying (QPSK) modulation, and therefore significantly simplifies practical implementation. The performance of the modified Costas loop is investigated for the carrier recovery of a QPSK signal in the presence of a co-channel interference. Both simulations and analytical results illustrate that the modified Costas loop may estimate the carrier frequency drift of received signal when the desired signal is stronger than interference.
DOI	10.1109/IranianCEE.2016.7585382

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Performance investigation of the modified costas carrier recovery loop for a QPSK modulated signal in the presence of co-channel interference

Yazar Heidarpour, Ali Reza, Montazerolghaem, M. A., Saberali, S. M.

Basım Tarihi 2016

Basım Yeri - IEEE

Konu QPSK modulation, Carrier recovery, Co-channel interference, AFC loops, Costas loop

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 2-s2.0-84994071407

Kayıt Numarası 249dae89-c814-41fb-885f-cfe267af1f95

Tarih 2016

Örnek Metin One of the important challenges in communication systems is drift in the carrier frequency of received signal due to the clock skew and Doppler effect. Every communication receiver requires an automatic frequency control (AFC) loop to estimate the carrier drift in the received signal. One of the well-known AFC loops in communication systems is the Costas loop. In this paper a modified version of Costas loop for binary phase-shift keying (BPSK) modulation is presented which is capable to estimate the carrier frequency of the quadrature phase-shift keying (QPSK) modulation, and therefore significantly simplifies practical implementation. The performance of the modified Costas loop is investigated for the carrier recovery of a QPSK signal in the presence of a co-channel interference. Both simulations and analytical results illustrate that the modified Costas loop may estimate the carrier frequency drift of received signal when the desired signal is stronger than interference.

DOI 10.1109/IranianCEE.2016.7585382