Title :
Common Magnitude Error Due to Phase Noise in OFDM Systems
Author :
Lawrence, Sean ; Biswas, Ashim ; Sahib, Anees
Author_Institution :
Intel, Bangalore
Abstract :
Phase noise from oscillator instabilities poses a limitation to the efficiency of data recovery in orthogonal frequency division multiplexed (OFDM) systems and basically comprises of two effects: a phase error common to all OFDM subcarriers called the common phase error (CPE) and inter-carrier interference (ICI). This paper brings to light a third component which is a change in magnitude common to all the subcarriers which we will call the common magnitude error (CME). Estimation and correction of the CME can be done in a similar manner to CPE estimation and correction by using the reference information on the pilot subcarriers.
Keywords :
OFDM modulation; error correction; phase noise; OFDM system; common magnitude error correction; common magnitude error estimation; common phase error correction; common phase error estimation; data recovery; inter-carrier interference; orthogonal frequency division multiplexed system; oscillator instability; phase noise; reference information; AWGN; Local oscillators; OFDM modulation; Phase modulation; Phase noise; Radio transmitters; Receiving antennas; Signal analysis; Signal processing; Transmitting antennas;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394322
