Bayesian inference of multi-valued information symbol by a CDMA demodulator using multi-valued spreading code sequence

Autor:	Katsuki Katayama
Rok vydání:	2006
Předmět:	Statistics and Probability Sequence Redundancy (information theory) Theoretical computer science Computer science Code division multiple access Code (cryptography) Demodulation Condensed Matter Physics Bayesian inference Algorithm Symbol (chemistry) Computer Science::Information Theory
Zdroj:	Physica A: Statistical Mechanics and its Applications. 361:543-568
ISSN:	0378-4371
DOI:	10.1016/j.physa.2005.05.041
Popis:	We make an estimation of a maximizer of posterior marginals (MPM) as for a multi-valued information symbol by a code-division multiple access (CDMA) demodulator using a multi-valued spreading code sequence within a framework of a Bayesian inference. We calculate an estimation error of the CDMA demodulator and the information capacity of the CDMA channel by using a replica method. We clarify that because of redundancy for degree of the multi-values, the multi-valued information symbol and the multi-valued spreading code sequence are useful as for improvement of information transmission by comparing performance for various degrees of the multi-values.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ea409845da3214e80d005d5d559fa92e https://doi.org/10.1016/j.physa.2005.05.041 Zobrazit plný text záznamu Full Text from ScienceDirect