SwePub - sökning: id:"swepub:oai:research.chalme...

Träfflista för sökning "id:"swepub:oai:research.chalmers.se:a2c784cf-cec3-4dec-b2b8-b4ab9b7f58d9" "

Sökning: id:"swepub:oai:research.chalmers.se:a2c784cf-cec3-4dec-b2b8-b4ab9b7f58d9"

Sortera/gruppera träfflistan

Sortering: Träffar per sida:

Numrering	Referens	Omslagsbild	Hitta
1.	Agrell, Erik, 1965, et al. (författare) Achieving the Shannon Limit with Probabilistically Shaped BICM 2012 Ingår i: IEEE International Symposium on Information Theory - Proceedings. - 2157-8095. - 9781467325806 ; , s. 2421-2425 Konferensbidrag (refereegranskat)abstract Probabilistic shaping for bit-interleaved coded modulation (BICM) systems at low signal-to-noise ratio (SNR) is investigated. Using known results for BICM systems with a uniform input distribution, the combinations of input alphabet, input distribution, and binary labeling that achieve the Shannon limit -1.59 dB are fully characterized. It is found that a BICM system achieves the Shannon limit at low SNR if and only if it can be represented as a zero-mean linear projection of a hypercube, which is the same condition as for uniform input distributions. Hence, probabilistic shaping offers no extra degrees of freedom to optimize the low-SNR mutual information of BICM systems, in addition to what is provided by geometrical shaping.

Skapa referenser, mejla, bekava och länka

Träfflista för sökning "id:"swepub:oai:research.chalmers.se:a2c784cf-cec3-4dec-b2b8-b4ab9b7f58d9" "