Name: New Techniques for OFDM (en Inglés)
SKU: 57418774
Price: 56.19 USD
Availability: InStock
Author: Patil, Nilesh ; Deshmukh, Monali
ISBN: 9786200535757

portada New Techniques for OFDM (en Inglés)

Formato

Libro Físico

Autor

Nilesh Patil

Monali Deshmukh

Editorial

LAP Lambert Academic Publishing

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

22.9x15.2x0.3 cm

Peso

0.09 kg.

ISBN13

9786200535757

Categorías

Ingeniería electrónica

New Techniques for OFDM (en Inglés)

Nilesh Patil (Autor) · Monali Deshmukh (Autor) · LAP Lambert Academic Publishing · Tapa Blanda

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Reseña del libro "New Techniques for OFDM (en Inglés)"

We expand our recently introduced concept of unique word orthogonal frequency division multiplexing (UW-OFDM). In UW-OFDM the cyclic prefixes (CPs) are replaced by deterministic sequences, the so-called unique words (UWs). The UWs are generated by appropriately loading a set of redundant subcarriers. By that a systematic complex number Reed-Solomon (RS) code construction is introduced in a quite natural way, because an RS code may be defined as the set of vectors, for which a block of successive zeros occurs in the other domain w.r.t. a discrete Fourier transform. (For a fixed block different to zero, i.e., a UW, a coset code of an RS code is generated.)A remaining problem in the original systematic coded UW-OFDM concept is the fact that the redundant subcarrier symbols disproportionately contribute to the mean OFDM symbol energy. In this paper we introduce the concept of non-systematic coded UW-OFDM, where the redundancy is no longer allocated to dedicated subcarriers, but distributed over all subcarriers. We derive optimum complex valued code generator matrices matched to the best linear unbiased estimator (BLUE) and to the linear minimum mean square error (LMMSE) data estimate.