Initialization and bitloading of discrete multi-tone transceivers for channels with unknown impulse response length

Tanja Karp, Carsten Bauer, Norbert J. Fliege

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper we consider a DMT transceiver with a guard interval of insufficient length. We describe an algorithm that estimates the channel impulse response correctly independently of its length while keeping the guard interval at the preset length. The training sequence is designed such that inter-symbol and inter-carrier interference cancel. We then show that calculating the one-tap equalizer per subcarrier as the inverse of the channel frequency response at the subcarrier frequency is not optimal in presence of interference. We also propose an improved bitloading algorithm based on measured signal-to-noise-and- interference ratios.

Original languageEnglish
Title of host publication2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop
Pages196-200
Number of pages5
StatePublished - 2004
Event2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop - Taos Ski Valley, NM, United States
Duration: Aug 1 2004Aug 4 2004

Publication series

Name2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop

Conference

Conference2004 IEEE 11th Digital Signal Processing Workshop and 2nd IEEE Signal Processing Education Workshop
CountryUnited States
CityTaos Ski Valley, NM
Period08/1/0408/4/04

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