Title :
Sensitivity of Multiband ZP-OFDM Ultra-Wide-Band and Receivers to Synchronization Errors
Author :
Zhou, Yi ; Karsilayan, Aydin I. ; Serpedin, Erchin
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas A&M Univ., College Station, TX
Abstract :
This correspondence analyzes the sensitivity of multiband zero-padding (ZP) orthogonal-frequency-division multiplexing (OFDM)-based ultra-wide-band receivers to carrier and sampling clock errors. Analytical expressions and numerical results for the power of intercarrier interference (ICI) and signal-to-interference-and-noise ratio (SINR) induced by imperfect carrier frequency and phase synchronization are presented and corroborated via computer simulations. It is found that the multiband zero-padding OFDM-based ultra-wide-band receivers are quite sensitive to carrier frequency errors but robust to sampling clock errors and small carrier phase offset errors
Keywords :
OFDM modulation; intercarrier interference; radio receivers; synchronisation; ultra wideband communication; carrier frequency errors; imperfect carrier frequency; intercarrier interference; multiband ZP-OFDM ultra-wideband sensitivity; multiband zero-padding; orthogonal-frequency-division multiplexing; phase synchronization; receiver sensitivity; sampling clock errors; signal-to-interference-and-noise ratio; small carrier phase offset errors; synchronization errors; ultra-wideband receivers; Clocks; Computer errors; Error analysis; Frequency synchronization; Interference; OFDM; Sampling methods; Signal analysis; Signal to noise ratio; Ultra wideband technology; Carrier frequency; carrier phase; orthogonal-frequency-division multiplexing (OFDM); sampling clock; synchronization; wide-band; zero-padding (ZP);
Journal_Title :
Signal Processing, IEEE Transactions on
DOI :
10.1109/TSP.2006.885762
