Title :
Performance evaluation of OFDM transmission over impulsive noisy channels
Author :
Nikookar, Homayoun ; Nathoeni, Danesh
Author_Institution :
Int. Res. Centre for Telecommun.-Transmission & Radar (IRCTR), Delft Univ. of Technol., Netherlands
Abstract :
Our aim is to investigate the effect of impulsive noise on the performance of an OFDM system. The employed model of impulsive noise consists of Bernoulli distributed impulse arrivals and Gaussian distributed impulse amplitudes. The bit error rate performance results are provided by means of simulation. The effect of changing the number of carriers of the OFDM system, the impulsivity of the noise, different relative powers of the impulsive noise as well as different impulse-shaping filters are investigated and are compared with the additive white Gaussian noise (AWGN) case. Results show that for large signal-to-noise ratios (SNR), and, particularly, very impulsive noise, the OFDM system with a large number of carriers can cope with the impulsivity of the noise, and can improve the performance.
Keywords :
AWGN channels; Butterworth filters; Gaussian distribution; OFDM modulation; data communication; error statistics; high-pass filters; impulse noise; low-pass filters; pulse shaping; radio networks; AWGN; BER; Bernoulli distribution; Butterworth filter; Gaussian distribution; OFDM transmission; additive white Gaussian noise; bit error rate; data communications; high pass filter; impulse amplitudes; impulse arrivals; impulse-shaping filters; impulsive noise; low pass filter; wireless communications; AWGN; Additive white noise; Bit error rate; Filters; Gaussian noise; Multi-stage noise shaping; OFDM; Power system modeling; Signal to noise ratio; Working environment noise;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on
Print_ISBN :
0-7803-7589-0
DOI :
10.1109/PIMRC.2002.1047282
