Title :
The closed-form BER expressions of PSK modulation for OFDM and SC-FDMA under jamming and imperfect channel estimation
Author :
Mahal, Jasmin A. ; Clancy, T. Charles
Author_Institution :
Bradley Dept. of Electr. & Comput. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
This paper details the derivation of the closed-form BER expressions of PSK modulation in Rayleigh faded AWGN channel for OFDM and SC-FDMA under jamming and channel estimation error. It has addressed the issue by first approaching the problem from general case of PSK modulation in Rayleigh faded channel with channel estimation error and then narrowing it down for the specific case of OFDM and SC-FDMA under jamming. The coherent demodulation of PSK modulated OFDM/SC-FDMA symbols is performed by Frequency Domain Zero Forcing Equalization using Pilot Symbol Assisted Channel Estimation (PSACE) technique. Piecewise-linear interpolation is used for its low computational complexity.
Keywords :
AWGN channels; OFDM modulation; Rayleigh channels; channel estimation; computational complexity; demodulation; equalisers; error statistics; frequency division multiple access; frequency-domain analysis; interpolation; jamming; phase shift keying; OFDM symbol; PSACE technique; PSK modulation; Rayleigh-faded AWGN channel; SC-FDMA symbol; channel estimation error; closed-form BER expression; coherent demodulation; computational complexity; frequency domain zero forcing equalization; imperfect channel estimation; jamming; piecewise-linear interpolation; pilot symbol assisted channel estimation technique; Bit error rate; Channel estimation; Equations; Jamming; Mathematical model; OFDM; Radio frequency;
Conference_Titel :
Communications (ICC), 2014 IEEE International Conference on
Conference_Location :
Sydney, NSW
DOI :
10.1109/ICC.2014.6883653
