A hybrid PAPR reduction scheme for coded OFDM
IEEE Transactions on Wireless Communications
Beyond 3G: wideband wireless data access based on OFDM and dynamic packet assignment
IEEE Communications Magazine
Beyond 3G: vision, requirements, and enabling technologies
IEEE Communications Magazine
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
QoS-constrained opportunistic scheduling for SC-FDMA with iterative multiuser detection
IEEE Communications Letters
Cyclic delay diversity with frequency domain turbo equalization for uplink fast fading channels
IEEE Communications Letters
Primary network cognition with spatial diversity signature
IEEE Communications Letters
IEEE Transactions on Wireless Communications
Optimal threshold adaptation with radio environment map for cognitive radio networks
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
Performance of single carrier transmission with cooperative diversity over fast fading channels
IEEE Transactions on Communications
Full-rate cooperative communications with spatial diversity for half-duplex uplink relay channels
IEEE Transactions on Wireless Communications
Spectral efficient transmit diversity techniques without cyclic prefix for fading relay channels
IEEE Transactions on Communications
Bit-interleaved coded transmission with multilevel modulation for MIMO-OFDM systems
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Cooperative spectrum sensing with dynamic threshold adaptation
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
IEEE Transactions on Communications
Bit-interleaved coded multilevel modulation for single-carrier frequency-domain equalization
IEEE Communications Letters
Diversity-enabled and power-efficient transceiver designs for peak-power-limited SIMO-OFDM systems
EURASIP Journal on Advances in Signal Processing - Special issue on advanced equalization techniques for wireless communications
Spectral efficient cooperative diversity technique with multi-layered modulation
IEEE Transactions on Communications
A new low complexity technique for PAPR reduction by using peak-flipping
International Journal of Information and Communication Technology
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Multi-input multi-output orthogonal frequency-division multiplexing (MIMO-OFDM) has become a promising candidate for next generation broadband wireless communications. However, like a single-input single-output (SISO)-OFDM, one main disadvantage of the MIMO-OFDM is the high peak-to-average power ratio (PAPR), which can be reduced by using an amplitude clipping. In this paper, we propose clipped signal reconstruction methods for the MIMO-OFDMs with spatial diversity, such as space-time and space-frequency block codes (STBC/SFBC). The proposed methods are based on the technique called iterative amplitude reconstruction (IAR) for SISO-OFDM. It is shown that the IAR can be easily employed for the STBC-OFDM, but it cannot be directly applied to the SFBC-OFDM, because the transmitted sequences over different antennas are dependent due to the use of space-frequency code. We propose a new SFBC transmitter for clipped OFDM, which has approximately half the computational complexity of conventional SFBC-OFDM. The proposed clipping preserves the orthogonality of transmitted signals, and the clipped signals are iteratively recovered at the receiver. Further, we theoretically analyze the performance of IAR with optimum equalization, and also provide highly accurate channel estimation of the OFDM with amplitude clipping. Simulation results show that the proposed receivers effectively recover contaminated OFDM signals with a moderate computational complexity.