OFDM-FDMA Scheme for the Uplink of a Mobile Communication System
Wireless Personal Communications: An International Journal
The promotion of WAVE contention performance by variable cyclic prefix mechanism
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
IEEE Transactions on Communications
Bit rate comparison of adaptive OFDM and cyclic prefixed single-with DFE
IEEE Communications Letters
Performance of single carrier transmission with cooperative diversity over fast fading channels
IEEE Transactions on Communications
Spectral efficient transmit diversity techniques without cyclic prefix for fading relay channels
IEEE Transactions on Communications
Block-based transceivers with minimum redundancy
IEEE Transactions on Signal Processing
IEEE Transactions on Information Theory
Characterization of single-carrier block transmission under the precoded OFDM architecture
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Blind CFO estimation for linearly precoded OFDMA uplink
IEEE Transactions on Signal Processing
Zero-forcing DFE transceiver design over slowly time-varying MIMO channels using ST-GTD
IEEE Transactions on Signal Processing
Novel techniques of single-carrier frequency-domain equalization for optical wireless communications
EURASIP Journal on Advances in Signal Processing - Special issue on advances in single carrier block modulation with frequency domain processing
International Journal of Communication Systems
VLM Precoded SLM Technique for PAPR Reduction in OFDM Systems
Wireless Personal Communications: An International Journal
| Hi-index | 35.75 |
We consider the minimization of uncoded bit error rate (BER) for the orthogonal frequency division multiplexing (OFDM) system with an orthogonal precoder. We analyze the BER performance of precoded OFDM systems with zero forcing and minimum mean squared error (MMSE) receivers. In the case of MMSE receivers, we show that for quadrature phase shift keying (QPSK), there exists a class of optimal precoders that are channel independent. Examples of this class include the discrete Fourier transform (DFT) matrix and the Hadamard matrix. When the precoder is the DFT matrix, the resulting optimal transceiver becomes the single carrier system with cyclic prefix (SC-CP) system. We also show that the worst solution corresponds to the conventional OFDM system; the conventional OFDM system has the largest BER. In the case of zero forcing receivers, the design of optimal transceiver depends on the signal-to-noise ratio (SNR). For higher SNR, solutions of optimal precoders are the same as those of MMSE receivers.