Blind OFDM carrier frequency offset estimation by locating null subcarriers
2004 (English)In: OFDM Workshop 2004,2004, 2004Conference paper (Refereed)
We present a novel algorithm for estimating the Carrier Frequency Offset (CFO) in an OFDM receiver. The algorithm is based on locating the spectral minimas within null subcarriers embedded in the spectrum. This is done by using a scaled DFT algorithm to calculate the spectrum of the OFDM symbol around the null subcarrier, followed by averaging the absolute square of the amplitude. The method is suitable for systems with continuous transmission.
Place, publisher, year, edition, pages
ofdm, synchronization, wlan
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-23138Local ID: 2538OAI: oai:DiVA.org:liu-23138DiVA: diva2:243452