Out-of-Band Power Reduction in NC-OFDM with Optimized Cancellation Carriers Selection

TL;DR

This paper introduces a computationally efficient method for jointly selecting cancellation carriers in NC-OFDM to significantly reduce out-of-band power and improve reception performance.

Contribution

It presents a novel CCs selection method that outperforms existing algorithms in OOB power attenuation and reception quality.

Findings

Higher OOB power attenuation than existing methods

Noticeable reception performance improvement

Computational efficiency in CCs selection

Abstract

In this letter, we propose a computationally efficient method for joint selection of cancellation carriers (CCs) and calculation of their values minimizing the out-of-band (OOB) power in non-contiguous (NC-) OFDM transmission. The proposed new CCs selection method achieves higher OOB power attenuation than algorithms known from literature as well as noticable reception performance improvement.