Carrier offset compensation for bluetooth signals

KAHVECİ S., KAYA İ.

IEEE 14th Signal Processing and Communications Applications, Antalya, Turkey, 16 - 19 April 2006, pp.29-30, (Full Text)

  • Publication Type: Conference Paper / Full Text
  • Volume:
  • Doi Number: 10.1109/siu.2006.1659831
  • City: Antalya
  • Country: Turkey
  • Page Numbers: pp.29-30
  • Karadeniz Technical University Affiliated: Yes

Abstract

Bluetooth (IEEE 802.15.1) systems operating in medium to large sized rooms can suffer multipath distortion, which may be compounded by presence of frequency offsets permitted by the bluetooth standart. Frequency errors can undermine common training based equalisation techniques. This paper establishes the effect of severe multipath indoor propagation and frequency errors on bluetooth receiver, and demonstrate the effectiveness of the constant modulus algotihm in performing channel equalisation when a frequency offset exist. A stochastic gradient based algorithm for frequency correction is also introduced and assessed.