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Perfect discrete multitone modulation with optimal transceivers
- Source :
- IEEE Transactions on Signal Processing. 48:1702-1711
- Publication Year :
- 2000
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2000.
-
Abstract
- Previously, discrete Fourier transform (DFT)-based discrete multitone modulation (DMT) systems have been widely applied to various applications. In this paper, we study a broader class of DMT systems using more general unitary matrices instead of DFT matrices. For this class, we show how to design optimal DMT systems over frequency-selective channels with colored noise. In addition, asymptotical performance of DFT-based and optimal DMT systems are studied and shown to be equivalent. However, for a moderate number of bands, the optimal DMT system offers significant gain over the DFT-based DMT system, as is demonstrated by examples.
- Subjects :
- Imagination
media_common.quotation_subject
Unitary matrix
Topology
Noise (electronics)
Discrete Fourier transform
Colors of noise
Control theory
Signal Processing
Modulation (music)
Moderate number
Electrical and Electronic Engineering
Transceiver
Computer Science::Information Theory
media_common
Mathematics
Subjects
Details
- ISSN :
- 1053587X
- Volume :
- 48
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Signal Processing
- Accession number :
- edsair.doi...........85a1aad3c612aa999649c4bc8d3e2e4b