Comparison of four SNR estimators for QPSK modulations

被引：98

作者：

Beaulieu, NC ^{[1
]}

Toms, AS

Pauluzzi, DR

机构：

[1] Queens Univ, Dept Elect & Comp Engn, Kingston, ON K7L 3N6, Canada

[2] Univ Toronto, Fields Inst, Toronto, ON M5T 3J1, Canada

[3] Datum Teleg, Vancouver, BC V6H 3H8, Canada

来源：

IEEE COMMUNICATIONS LETTERS | 2000年 / 4卷 / 02期

关键词：

noise measurement; quadrature phase-shift keying;

D O I：

10.1109/4234.824751

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Four signal-to-noise ratio (SNR) estimators for quartenary phase-shift keying (QPSK)-like signaling are proposed and examined. Two are based on receiver statistics directly related to SNR while two others are based on receiver statistics inversely related to SNR. The results show that the estimators based on the inverse of SNR perform better than the estimators based on SNR.

引用

页码：43 / 45

页数：3