Performance comparison of adaptive digital predistortion algorithms using adaptation time for mobile WiMAX power amplifier applications

Ji-yeon KIM; Jong-heon KIM

Makale detayları

Performance comparison of adaptive digital predistortion algorithms using adaptation time for mobile WiMAX power amplifier applications

Yazarlar:

Ji-yeon KIM | Jong-heon KIM

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2016 Vol.24 Issue 5, pp.4098-4104

Belge Tipi:

Makale

Yayın Tarihi:

9/2016

Belge Dili:

Türkçe

Document ID (Org No.):

2000741604

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632

Özet:

 

In this paper, we propose that adaptation time be considered a parameter for evaluating the performance of digital filter algorithms in adaptive digital predistorted high-power amplifiers. An adaptive predistorted high-power amplifier with an average power of 37.5 dBm was designed and fabricated for mobile worldwide interoperability for microwave access (WiMAX) test signals. For performance comparisons using adaptation time, several effective algorithms (such as the least-mean-squares (LMS), recursive-least-squares (RLS), and affine projection (AP) algorithms) were implemented. According to the experimental results, the RLS and AP algorithms achieved a similar linearity improvement of 11 dBr. However, the AP algorithm had the advantage of a faster adaptation time than the other algorithms.

Makale detayları

Performance comparison of adaptive digital predistortion algorithms using adaptation time for mobile WiMAX power amplifier applications

Yazarlar: Ji-yeon KIM | Jong-heon KIM

Yayıncı: TUBITAK

Dergi: Turkish Journal of Electrical Engineering and Computer Science 2016 Vol.24 Issue 5, pp.4098-4104

Belge Tipi: Makale

Yayın Tarihi: 9/2016

Belge Dili: Türkçe

Document ID (Org No.): 2000741604

Sıklık: İki Aylık

eISSN: 1303-6203

pISSN: 1300-0632

Sayı

Yazarlar:

Ji-yeon KIM | Jong-heon KIM

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Electrical Engineering and Computer Science 2016 Vol.24 Issue 5, pp.4098-4104

Belge Tipi:

Makale

Yayın Tarihi:

9/2016

Belge Dili:

Türkçe

Document ID (Org No.):

2000741604

Sıklık:

İki Aylık

eISSN:

1303-6203

pISSN:

1300-0632