Multilevel coding with time diversity

Details Multilevel coding with time diversity Multilevel coding with time diversity

H - Electricity

04

L

H04L 27/32 (2006.01) H03M 13/09 (2006.01) H03M 13/11 (2006.01) H03M 13/25 (2006.01) H04L 1/00 (2006.01) H04L 27/34 (2006.01)

Patent

CA 2262913

A multilevel coded modulation scheme is provided in which a first portion of input data is encoded by a first-level code and a second portion of input data is encoded by a second-level code, the second-level code being such that the overall multilevel code exhibits a desired level of time diversity of at least 2 and the minimum distance of the overall code is not increased by virtue of the presence of the second-level code.

Cette invention présente un programme de modulation à codage multiniveau, dans lequel une première partie des données d'entrée est codée par un code de premier niveau et une seconde partie des données d'entrée est codée par un code de second niveau, ce code de second niveau étant conçu pour que le code de multiniveau global présente un niveau désiré de diversité dans le temps d'au moins 2 et la distance minimale du code global ne soit pas accrue en raison de la présence du code de second niveau.

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