Carrier frequency dependent throughput analysis for impaired OFDM links under user mobility

—In this paper we present an analytical approach to evaluate the M-QAM bit error rate and carrier frequency dependent throughput of OFDM systems subject to various receiver impairments and mobile channel characteristics. Specifically we model the following effects: residual carrier frequency offset, outdated channel state information due to user mobility, channel estimation errors and flat receiver I/Q imbalance in Rayleigh time and frequency selective fading channels. We provide a numerical tool to evaluate the uncoded bit error rate as well as mutual information in the case of scattered pilot designs used for pilotaided linear channel estimation and linear channel interpolation.

• Type: Conference
• Year: 2008
• Where: PIMRC
• Authors: Marco Krondorf, Gerhard Fettweis
• Keywords: Bit Error Rate, Carrier Frequency, Channel Estimation, Communications, PIMRC 2008