Title :
Performance evaluation of OFDM transmission over a challenging urban propagation environment
Author :
Pantos, George D. ; Kanatas, Athanasios G. ; Constantinou, Philip
Author_Institution :
Mobile Radiocommun. Lab., Nat. Tech. Univ. of Athens, Greece
fDate :
3/1/2003 12:00:00 AM
Abstract :
The paper introduces a performance evaluation of orthogonal frequency division multiplexing (OFDM) transmission schemes over a challenging urban propagation environment, considering 3D scattering, providing also a comparison with 2D considerations. After an analytic calculation of the power of received signal components (faded useful signal, intercarrier interference, intersymbol interference and noise) the authors present results of system performance evaluation under different propagation conditions (e.g., various Doppler shift values) and various values of key system parameters. BER (bit error rate) calculations are provided for a 16-QAM OFDM transmission scheme over Rayleigh fading channels, with and without Reed-Solomon coding techniques. Finally, the influence of carrier offset on the system performance is examined.
Keywords :
Doppler shift; OFDM modulation; Rayleigh channels; Reed-Solomon codes; electromagnetic wave scattering; intersymbol interference; mobile radio; quadrature amplitude modulation; radiowave propagation; random noise; time-varying channels; 3D scattering; BER; Doppler shift values; OFDM transmission; QAM; Rayleigh fading channels; Reed-Solomon coding; bit error rate; carrier offset; faded useful signal; intercarrier interference; intersymbol interference; mobile radio propagation environment; noise; orthogonal frequency division multiplexing; received signal components; time-varying channels; urban propagation environment; Bit error rate; Doppler shift; Fading; Intersymbol interference; OFDM; Performance analysis; Rayleigh scattering; Signal analysis; System performance; Working environment noise;
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2003.808911
