Filter-Based Fading Channel ModelingReportar como inadecuado




Filter-Based Fading Channel Modeling - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Modelling and Simulation in EngineeringVolume 2012 2012, Article ID 705078, 10 pages

Research Article

Department of Electrical and Computer Engineering, San Diego State University, San Diego, CA 92182, USA

Ukalta Engineering, 4344 Enterprise Square, 10230 Jasper Avenue, Edmonton, AB, Canada T5J 4P6

Department of Electrical and Computer Engineering, University of Alberta, Edmonton, AB, Canada T6G 2V4

Received 28 April 2012; Accepted 6 August 2012

Academic Editor: Neji Youssef

Copyright © 2012 Amirhossein Alimohammad et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A channel simulator is an essential component in the development and accurate performance evaluation of wireless systems. A key technique for producing statistically accurate fading variates is to shape the flat spectrum of Gaussian variates using digital filters. This paper addresses various challenges when designing real and complex spectrum shaping filters with quantized coefficients for efficient realization of both isotropic and nonisotropic fading channels. An iterative algorithm for designing stable complex infinite impulse response IIR filters with fixed-point coefficients is presented. The performance of the proposed filter design algorithm is verified with 16-bit fixed-point simulations of two example fading filters.





Autor: Amirhossein Alimohammad, Saeed Fouladi Fard, and Bruce F. Cockburn

Fuente: https://www.hindawi.com/



DESCARGAR PDF




Documentos relacionados