DSP implementation aspects of an OFDM based wireless MAN modem

Behrouz Maham, Reza Ali-Hemmati

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

For future broadband telecommunication systems and networks based on OFDM technology, efficient implementation of an OFDM modems is a major requirement. In this paper, we are going to present some fundamental aspects of implementation of an OFDM based wireless MAN modem on TI Digital Signal Processors (DSP) C6000 family. To this purpose, we model a typical MMDS system based on IEEE802.16a standard, and simulate it in TI Code Composer Studio™ (CCS) environment with C programming language and compare the floating and fixed point implementation aspects of the system. This is useful and enhances rapid prototyping of a DSP based wireless MAN modems. The wireless MAN system will be demonstrated a high speed wireless communication system. One basic component of common OFDM systems is the computation of the DFT and IDFT which was our main focus in this paper via considering some efficient FFT algorithms like the Radix-2 and the Radix-4. In the next part, we compare various methods of implementing of a simple channel estimation and equalization for compensation of the signal affected by frequency selective fading channel model which were employed in our simulation.

Original languageEnglish
Title of host publication2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006
PublisherIEEE Computer Society
ISBN (Print)1424405173, 9781424405176
DOIs
Publication statusPublished - Jan 1 2006
Event2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006 - Wuhan, China
Duration: Sep 22 2006Sep 29 2006

Publication series

Name2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006

Other

Other2006 International Conference on Wireless Communications, Networking and Mobile Computing, WiCOM 2006
CountryChina
CityWuhan
Period9/22/069/29/06

Keywords

  • Channel estimation
  • DFT
  • DSP
  • OFDM

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Communication

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