COMPARISON OF THE PERFORMANCE ANALYSES OF SC-FDMA AND GFDMA SYSTEMS UNDER NULL SUB-CARRIERS BASED MULTIPLE CARRIER FREQUENCY OFFSET SYNCHRONIZATION

Resat M. A., ERTUĞ Ö.

22nd IEEE Signal Processing and Communications Applications Conference (SIU), Trabzon, Türkiye, 23 - 25 Nisan 2014, ss.1355-1358 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Doi Numarası: 10.1109/siu.2014.6830489
  • Basıldığı Şehir: Trabzon
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1355-1358
  • Gazi Üniversitesi Adresli: Evet

Özet

In this work, the Bit Error Rate performances of Grouped Frequency Division Multiple Access (GFDMA) and Single-Carrier Frequency Division Multiple Access (SC-FDMA) techniques, which use a null sub-carriers based Carrier Frequency Offset (CFO) synchronization algorithm are compared according to various parameters. GFDMA is a new emerging technique that uses an iterative structure to update estimate values and reduce errors iteration by iteration. On the other hand, GFDMA is vulnerable to CFO like SC-FDMA. This paper proposes a null sub-carrier based CFO synchronization method suitable for uplink GFDMA and SC-FDMA techniques, utilizing sub-band based sub-carrier mapping schemes.