Carrier frequency offset (CFO) in OFDM/OQAM systems can be estimated based on the conjugate correlation function of the received signals. Traditionally this is done before demodulation. We present new methods based on the subchannel signals. The proposed estimators are robust to multipath effects due to the narrowband property of the subchannels. The… (More)
— The high sensitivity to carrier frequency offset of OFDM systems compared to single carrier systems is well known. In this paper we study how this can be remedied for OFDM/OQAM systems by appropriate pulse shaping. Building on earlier methods for minimizing out-of-band energy, a procedure for pulse shape design is derived. The new pulses are optimal with… (More)
— The need for equalization in an OFDM/OQAM system is studied. Analytical expressions for MMSE are expressed as a function of the number of subchannels, the order of equalizer and the channel noise level.
— New blind carrier frequency offset (CFO) estimation methods based on the correlation function of the subchannel signals are presented for OFDM/OQAM systems. The proposed estimators are robust to multipath effects due to the narrowband property of the subchannels in OFDM systems. The performance of the estimators is evaluated by asymptotic analysis and… (More)
This paper treats the problem of digital TV terrestrial broadcasting in presence of co-channel interference from analogue TV services. The channel capacity is calculated for the optimum distribution of the transmitted power. An OFDM scheme is presented which is designed to be robust to the analogue TV interference. Power and number of bits per symbol are… (More)
A statistical model for crosstalk in twisted pair cables is presented, where all individual pair combinations in the cable are modeled separately. The model is realistic because all parameters are based on measurements, and an extensive set of crosstalk measurements will be necessary in order to describe all relevant pair combinations. The model is well… (More)