H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 11/00 (2006.01) H04L 27/26 (2006.01) H04L 27/34 (2006.01)
Patent
CA 2211999
The encoding/transmission of information in an OFDM system is enhanced by using complementary codes and different patterns of amplitude modulation representing respective data words. The complementary codes, more particularly, are converted into phase vectors and modulated by the selected pattern. The result is then used to modulate respective carrier signals. The modulated result is then transmitted to a receiver which decodes the received signals to recover the encoded information.
Le codage/transmission d'information dans un système OFDM est amélioré par l'utilisation de codes complémentaires et de différents types de modulation d'amplitude représentant des mots de données distincts. Plus particulièrement, les codes complémentaires sont convertis en vecteurs de phase et modulés selon le type de modulation choisi. Le résultat est ensuite utilisé pour moduler chacun des signaux de porteuse. Puis le résultat modulé est transmis à un récepteur qui décode les signaux reçus afin de reconstituer l'information codée.
Kirby Eades Gale Baker
Lucent Technologies Inc.
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