Statistical analysis of quantization noise in an end-to-end OFDM link

Maduranga Liyanage, Iwao Sasase

研究成果: Article査読

抄録

Quantization is an important operation in digital communications systems. It not only introduces quantization noise but also changes the statistical properties of the quantized signal. Furthermore, quantization noise cannot be always considered as an additive source of Gaussian noise as it depends on the input signal probability density function. In orthogonal-frequency-division- multiplexing transmission the signal undergoes different operations which change its statistical properties. In this paper we analyze the statistical transformations of the signal from the transmitter to the receiver and determine how these effect the quantization. The discussed process considers the transceiver parameters and the channel properties to model the quantization noise. Simulation results show that the model agrees well with the simulated transmissions. The effect of system and channel properties on the quantization noise and its effect on bit-errorrate are shown. This enables the design of a quantizer with an optimal resolution for the required performance metrics.

本文言語English
ページ(範囲)1376-1385
ページ数10
ジャーナルIEICE Transactions on Communications
E94-B
5
DOI
出版ステータスPublished - 2011 5月

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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