Method for optimizing the resources of a data transmission at the level of the MAC layer and device implementing the method

摘要

A method for optimizing the resources of a data transmission, based on a set of pairs of modulation and first correcting code, includes: determining, for each pair, maximum rate of a second correcting code applied to data transmitted before application of the first correcting code and of modulation wherein the error rate in data received is maximum a target error rate; the second correcting code applied at the medium access layer, to generate packets of redundancy bits based on packets of data bits received supplemented with padding sections, all having the same size; evaluating an item of information representative of the ratio between bits at input of the medium access layer and bits actually transmitted or of transmission bitrate required for solutions associating modulation, first and second correcting codes; selecting, from among solutions associating modulation, first and second correcting codes, to maximize the ratio or to minimize the transmission bitrate.

主权项

1. A method for optimizing resources of a data transmission, comprising:
defining a set of available pairs of modulation and a first correcting code, determining, for each of said pairs, a maximum rate of a second correcting code to be applied to data to be transmitted before application of the first correcting code and of the modulation so that an error rate in data received after transmission on an imperfect channel is at most equal to a target error rate, said second correcting code being intended to be applied at a level of a medium access layer, so as to generate a plurality NPR of packets of redundancy bits on a basis of a plurality K of packets of data bits received supplemented with padding sections so that they all have the same size, evaluating an item of information representative of a ratio between a number of bits at input of the medium access layer and a number of bits actually transmitted or an item of information representative of a transmission bitrate required for a set of solutions associating modulation, first and second correcting codes, and selecting, from among the set of solutions associating modulation, first and second correcting codes, the one which makes it possible to maximize said ratio or to minimize said transmission bitrate.