Parallel combinatory OFDM signaling

被引：83

作者：

Frenger, PK ^{[1
]}

Svensson, NAB ^{[1
]}

机构：

[1] Chalmers, Dept Signals & Syst, Commun Syst Grp, SE-41296 Gothenburg, Sweden

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 1999年 / 47卷 / 04期

关键词：

AWGN channel; bandwidth efficiency; bit mapping; M-PSK; multicarrier modulation; OFDM; orthogonal signaling; parallel combinatory signaling; peak-to-average power ratio (PAPR); Ricean channel;

D O I：

10.1109/26.764929

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a parallel combinatory-orthogonal frequency division multiplexing (PC-OFDM) system is proposed and analyzed. The proposed system selects at each symbol interval a subset of the available subcarriers, and the selected subcarriers are modulated by points from an M-PSK signal constellation. PC-OFDM systems can be designed to have lower peak-to-average power ratio (PAPR), higher bandwidth efficiency, and lower bit error probability on Gaussian channels compared to ordinary OFDM systems, A bit mapping procedure using the Johnson association, together with a position algorithm for the PSK symbols, is proposed. Good analytical approximations of the BER for PC-OFDM systems are derived for AWGN and Ricean fading channels, and extensive simulation results are presented.

引用

页码：558 / 567

页数：10

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