In an orthogonal frequency divisionmultiplexing (OFDM) system, carrier frequency offset (CFO) causes intercarrier interference (ICI) which significantly degrades the system error performance. In this paper we provide a closed-form expression to evaluate the exact error probabilities of arbitrary 2-D modulation OFDM systems with CFO, and analyze the effect of CFO on error performance.
- Carrier frequency offset
- Inter-channel interference
- Orthogonal frequency division multiplexing
- Probability of error