PAPR Reduction scheme with SOCP for MIMO-OFDM
A combination of multiple-input multiple-output (MIMO) with orthogonal frequency division multiplexing (OFDM) has became a promising candidate for high performance 4G broadband wireless communications. However, like OFDM, one main disadvantage of MIMO-OFDM is that the signals transmitted on different antennas may exhibit a prohibitively large peak-to-average power ratio (PAPR). In this paper we extend the formulation of the reduction of the PAPR problem as second order cone programming problem (SOCP) 1 to MIMOOFDM. The investigated PAPR reduction method is originally based on a particular case of tone reservation (TR) approach which uses the unused carriers of standards. This approach does not degrade the bit-error-rate (BER) or the data rate and no side information (SI) is required. Simulation results are presented for a MIMO-OFDM system with two antennas and 256 carriers as in IEEE 802.16 WiMAX standard.
Basel Rihawi Yves Louêt Sidkièta Zabre
IETR/Supélec - Campus de Rennes - Avenue de la Boulaie, CS 47601 35576 Cesson-Sévigné cedex, France
国际会议
上海
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）