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Blind selected mapping (BSLM) is a technique to reduce the peak to average power ratio (PAPR) of OFDM by using a set of scrambling sequences. Since the side information (SI) on the scrambling sequence selected by the transmitter is not directly sent to the receiver in BSLM, the SI needs to be estimated by the receiver. In this paper, a BSLM scheme that applies a new SI estimation approach is proposed. The proposed BSLM scheme estimates the SI by selecting the minimum of the candidate metrics that are computed with the received pilot signal, the pilot symbol sequence, and the scrambling sequences. It is shown by simulation that the proposed BSLM scheme yields better SI error rate (SIER) and bit error rate (BER) performance and lower implementation complexity than four traditional BSLM schemes.

Orthogonal frequency division multiplexing (OFDM) is an attractive transmission technique for broadband communication. OFDM can overcome the detrimental impact of intersymbol interference efficiently without requiring complex equalization [

In this paper, a BSLM scheme that applies a new SI estimation approach is proposed. The proposed BSLM scheme estimates the SI by selecting the minimum of the candidate metrics that are computed with the received pilot signal, the pilot symbol sequence, and the scrambling sequences. It is shown by simulation that the proposed BSLM scheme yields better SI error rate (SIER) and BER performance and lower implementation complexity than four traditional BSLM schemes.

The remainder of this paper is organized as follows. In Section

We consider an OFDM system with a block size

In this section, traditional BSLM schemes are described for comparison purposes.

The conventional ML-based BSLM scheme can be written as

Reference [

Reference [

Reference [

In the proposed BSLM scheme,

For simulation, the system parameters are chosen as

PROPOSED: the BSLM scheme presented in the previous section.

BSLM-I: the BSLM scheme in [

BSLM-II: the BSLM scheme in [

BSLM-III: the BSLM scheme in [

BSLM-IV: the BSLM scheme in [

Figure

Comparison of the SIER results in two cases of (a)

In Figure

Comparison of the CCDF results for various values of

Figure

Comparison of the BER results of PROPOSED for various values of

Figure

Comparison of the BER results in two cases of (a)

Figure

Comparison of the BER results in two cases of (a)

In Figure

Comparison of the DCRR results in terms of the QAM constellation size,

A BSLM scheme that applied a new SI estimation approach based on the pilot signal was proposed. The proposed BSLM scheme estimated the SI by selecting the minimum of the candidate metrics that were computed with the received pilot signal, the pilot symbol sequence, and the scrambling sequences. It was shown by simulation that the proposed BSLM scheme yielded better SIER and BER performance and lower implementation complexity than four traditional BSLM schemes.

The authors declare that there are no conflicts of interest regarding the publication of this paper.

This paper was supported by Konkuk University in 2016.