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Iterative detection of multicode DS-CDMA signals with strongly nonlinear transmitters
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Orientador(es)
Resumo(s)
Whenever a DS-CDMA signal is the sum of several
components associated to different spreading codes it has high
envelope fluctuations and a high peak-to-mean envelope power
ratio (PMEPR) setting strong linearity requirements for the
power amplifiers. The use of clipping and filtering techniques
(which can be repeated several times) was shown to be an effective
way of reducing the PMEPR of DS-CDMA signals.
We consider an improved receiver where there is an iterative
estimation and cancelation of nonlinear distortion effects. The
proposed receiver allows significant performance improvements
after just a few iterations, even when we have strong nonlinear
distortion effects.
Descrição
Palavras-chave
Networking and broadcasting Communication Computing and processing (Hardware/ software)
Contexto Educativo
Citação
Editora
IEEE