PAPR reduction using artificial bee colony algorithm in OFDM systems

Necmi TAŞPINAR; Derviş KARABOĞA; Mahmut YILDIRIM

Makale detayları

PAPR reduction using artificial bee colony algorithm in OFDM systems

Yazarlar:

Necmi TAŞPINAR | Derviş KARABOĞA | Mahmut YILDIRIM

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2011 Vol.19 Issue 1, pp.47-58

Belge Tipi:

Makale

Yayın Tarihi:

12/2010

Belge Dili:

Türkçe

Document ID (Org No.):

2000743813

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

Partial transmit sequence (PTS) is an attractive scheme for  peak-to-average power ratio (PAPR) reduction in orthogonal frequency  division multiplexing (OFDM) systems, but its high computational  complexity to find optimum phase factors is the main drawback.  In  this paper, we propose PTS based on an artificial bee colony (ABC)  algorithm (ABC-PTS) for reducing the computational complexity of the  PTS in the OFDM system.  The ABC-PTS was compared to conventional PTS  using a random search strategy (RS-PTS) and optimum PTS. In addition,  the bit error rate (BER) performance of the ABC-PTS was shown when a  high power amplifier (HPA) was used for additive white Gaussian noise  (AWGN) and Rayleigh flat fading channel models.  Solid state power  amplifiers (SSPA) and traveling wave tube amplifiers (TWTA) are  commonly used HPA models, and simulations were realized for both of  these HPA models.  Simulation results showed that the ABC-PTS is  highly successful in reducing the computational complexity of the  conventional PTS and BER performances in the OFDM system.

 

Partial transmit sequence (PTS) is an attractive scheme for  peak-to-average power ratio (PAPR) reduction in orthogonal frequency  division multiplexing (OFDM) systems, but its high computational  complexity to find optimum phase factors is the main drawback.  In  this paper, we propose PTS based on an artificial bee colony (ABC)  algorithm (ABC-PTS) for reducing the computational complexity of the  PTS in the OFDM system.  The ABC-PTS was compared to conventional PTS  using a random search strategy (RS-PTS) and optimum PTS. In addition,  the bit error rate (BER) performance of the ABC-PTS was shown when a  high power amplifier (HPA) was used for additive white Gaussian noise  (AWGN) and Rayleigh flat fading channel models.  Solid state power  amplifiers (SSPA) and traveling wave tube amplifiers (TWTA) are  commonly used HPA models, and simulations were realized for both of  these HPA models.  Simulation results showed that the ABC-PTS is  highly successful in reducing the computational complexity of the  conventional PTS and BER performances in the OFDM system.

Makale detayları

PAPR reduction using artificial bee colony algorithm in OFDM systems

Yazarlar: Necmi TAŞPINAR | Derviş KARABOĞA | Mahmut YILDIRIM

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2011 Vol.19 Issue 1, pp.47-58

Belge Tipi: Makale

Yayın Tarihi: 12/2010

Belge Dili: Türkçe

Document ID (Org No.): 2000743813

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

Necmi TAŞPINAR | Derviş KARABOĞA | Mahmut YILDIRIM

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2011 Vol.19 Issue 1, pp.47-58

Belge Tipi:

Makale

Yayın Tarihi:

12/2010

Belge Dili:

Türkçe

Document ID (Org No.):

2000743813

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632