Title :
Comparison of CP-based single carrier and OFDM with power allocation
Author :
Wang, Neng ; Blostein, Steven D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Canada
fDate :
3/1/2005 12:00:00 AM
Abstract :
Existing performance comparisons of single-carrier (SC) and multicarrier transmission are mainly based on simulations. In this letter, we present a framework to compare the performance of cyclic prefix (CP)-based SC block transmission and orthogonal frequency-division multiplexing (OFDM) in frequency-selective fading channels. Minimum mean-squared error, equal-gain, and approximate minimum bit-error rate power-allocation schemes for CP-OFDM are considered. Performance of these methods is compared analytically and verified by simulations.
Keywords :
OFDM modulation; error statistics; fading channels; mean square error methods; CP-based single carrier; OFDM; cyclic prefix; frequency-selective fading channel; minimum bit-error rate; minimum mean-squared error; multicarrier transmission; orthogonal frequency-division multiplexing; power allocation; AWGN; Additive white noise; Bit error rate; Fast Fourier transforms; Finite impulse response filter; Frequency division multiplexing; Gaussian noise; Matrix converters; OFDM modulation; Time domain analysis; Cyclic prefix (CP); frequency-selective fading; orthogonal frequency-division multiplexing (OFDM); power allocation; single-carrier (SC);
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2005.843432
