H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/26 (2006.01) H04B 7/02 (2006.01) H04L 1/08 (2006.01)
Patent
CA 2387814
A method that increases an effective signal-to-noise ratio (SNR) of a carrier signal that has an SNR that precludes transmitting a complete information bit of an input bit stream at a bit-error rate during a single symbol period is described. The increasing of the SNR of the carrier signal includes modulating a same information bit of the input bit stream during successive symbol periods. The modulating of the same information bit during successive symbols achieves the bit-error rate for the carrier signal. The carrier signal is demodulated for successive symbol periods to obtain partial information regarding the information bit. The partial information is combined to produce a complete information bit.
Cette invention a trait à une technique permettant d'accroître le rapport signal/bruit effectif (SNR) d'un signal de porteuse dont le SNR empêche la transmission d'un bit d'information complet d'un train binaire en entrée à un certain taux d'erreur binaire lors d'une période de symbole unique. L'accroissement du SNR du signal de porteuse repose sur la modulation d'un même bit d'information du train binaire en entrée durant des périodes de symbole successives. Cette modulation durant des périodes de symbole successives permet d'atteindre le taux d'erreur binaire du signal de porteuse. Ce dernier est démodulé pour des périodes de symbole successives et ce, afin d'obtenir une information partielle relative au bit d'information. On combine cette information partielle pour produire un bit d'information complet.
Aware Inc.
Smart & Biggar
Tzannes Marcos C.
LandOfFree
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