A peak power efficient cooperative diversity using star-QAM

Abstract

In this paper, we propose a new simple relaying strategy with bit-interleaved convolutionally coded star quadrature amplitude modulation (QAM). Star-QAM is composed of multiple concentric circles of phase-shift keying (PSK). Exploiting this property, a hard limiter is used to enhance power amplifier (PA) efficiency at a relay. We analyze our proposed… (More)
DOI: 10.1109/GLOCOMW.2011.6162414

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