OFDM for Wireless Multimedia Communications
OFDM for Wireless Multimedia Communications
Selected mapping without side information for PAPR reduction in OFDM
IEEE Transactions on Wireless Communications
Two new phase sequence sets for PAPR reduction in SLM-OFDM systems without side information
Proceedings of the 1st International Conference on Wireless Technologies for Humanitarian Relief
On the phase sequence set of SLM OFDM scheme for a crest factor reduction
IEEE Transactions on Signal Processing
SLM and PTS peak-power reduction of OFDM signals without side information
IEEE Transactions on Wireless Communications
A new PAPR reduction scheme: SPW (subblock phase weighting)
IEEE Transactions on Consumer Electronics
Orthogonal frequency division multiplexing: a multi-carrier modulation scheme
IEEE Transactions on Consumer Electronics
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Orthogonal frequency division multiplexing (OFDM) is an attractive multicarrier modulation scheme, but it suffers from the problem of high peak-to-average power ratio (PAPR). Selected mapping (SLM) and partial transmit sequences (PTS) are two well known, distortion-less techniques with good PAPR reduction capabilities. But, both the methods require side information (SI) about the phase rotation factors to recover the original data signal at the receiving end. The transmission of SI not only results in data rate loss but also, in BER performance degradation if SI gets corrupted over the channel. In this paper we have proposed a new mapping scheme, named "$$M\text{- }2M$$M-2M Mapping scheme" for SLM and PTS based methods to completely eliminate the requirement of SI at the receiver. In this scheme $$M$$M data points are mapped to the constellation points of 2M-ary modulation scheme using (1, j) as the phase rotation factors. Some criteria are suggested with which the method is applied for different constellation sizes, $$M=4$$M=4 to $$M=16$$M=16. The method can be easily coupled with conventional SLM and PTS techniques. When compared with the existing methods like multi point square mapping, which do not need SI, our technique is scalable and provides good PAPR reduction capability with consistent BER performance.