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Local Oscillator Phase Noise Influence on Single Carrier and OFDM Modulations

Fialho, V. ; Fortes, F. ; Vieira, M.

Local Oscillator Phase Noise Influence on Single Carrier and OFDM Modulations, Proc Doctoral Conf. on Computing, Electrical and Industrial Systems - DOCEIS, Monte de Caparica, Portugal, Vol. 1, pp. 1 - 1, April, 2013.

Digital Object Identifier: 0

Abstract
This paper describes the influence of local oscillator phase noise on
single and multi-carrier modulations schemes. The oscillator has the main role
on modulation and demodulation process of the radio frequency channels. The
synchronization of the entire system depends on the accuracy of this circuit.
This work is based on the simulation of these two scenarios under influence of a
non-ideal oscillator. The output of the simulation scenario results of error vector
magnitude, bit error rate and symbol error rate. The relation of these metrics
with the local oscillator phase noise allows the performance estimation the
global system. A simple phase noise model is presented with configurable
power spectral density and offset frequency.