Calibração de parâmetros de qualidade em mel por FTIR-ATR
Martins, Sílvia Borges
2014
Low-PMEPR OFDM transmission with an Iterative receiver technique for cancellation of nonlinear distortion
Type
article
Creator
Identifier
GUSMÃO, António; DINIS, Rui; TORRES, Paulo (2005) - Low-PMEPR OFDM transmission with an iterative receiver technique for cancellation of nonlinear distortion. In VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference. p. 2367-2371. Doi: 10.1109/VETECF.2005.1558972.
1090-3038
10.1109/VETECF.2005.1558972
Title
Low-PMEPR OFDM transmission with an Iterative receiver technique for cancellation of nonlinear distortion
Subject
low-PMEPR
OFDM
OFDM
Date
2021-12-15T16:32:50Z
2021-12-15T16:32:50Z
2005-09
2021-12-15T16:32:50Z
2005-09
Description
“© © 2005 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”
When a low-PMEPR (Peak-to-Mean Envelope Power Ratio) is intended for OFDM (Orthogonal Frequency Division Multiplexing) transmission, a wellknown solution is to resort to signal processing schemes that involve nonlinear operations (e.g., an appropriate clipping) in the time domain. However, with a conventional OFDM receiver, decreased clipping levels for PMEPR reduction purposes always lead to increasingly poor detection performances. This paper considers advanced OFDMtype receivers where an iterative cancellation of deliberate nonlinear distortion effects is carried out, and evaluates their performance. The potentials and limitations of this approach are explained with the help of an analytical performance bound. Moreover, we also consider, in detail, the impact of channel coding/decoding. A set of numerical results is presented and discussed, namely to show the feasibility of a low-PMEPR, spectrally efficient, coded OFDM-type transmission where the cancellation of nonlinear distortion effects is carried out through a modified iterative decision-feedback procedure, involving the decoder outputs.
This work was partially supported by the FCT project
info:eu-repo/semantics/publishedVersion
When a low-PMEPR (Peak-to-Mean Envelope Power Ratio) is intended for OFDM (Orthogonal Frequency Division Multiplexing) transmission, a wellknown solution is to resort to signal processing schemes that involve nonlinear operations (e.g., an appropriate clipping) in the time domain. However, with a conventional OFDM receiver, decreased clipping levels for PMEPR reduction purposes always lead to increasingly poor detection performances. This paper considers advanced OFDMtype receivers where an iterative cancellation of deliberate nonlinear distortion effects is carried out, and evaluates their performance. The potentials and limitations of this approach are explained with the help of an analytical performance bound. Moreover, we also consider, in detail, the impact of channel coding/decoding. A set of numerical results is presented and discussed, namely to show the feasibility of a low-PMEPR, spectrally efficient, coded OFDM-type transmission where the cancellation of nonlinear distortion effects is carried out through a modified iterative decision-feedback procedure, involving the decoder outputs.
This work was partially supported by the FCT project
info:eu-repo/semantics/publishedVersion
Access restrictions
restrictedAccess
http://creativecommons.org/licenses/by-nd/4.0/
http://creativecommons.org/licenses/by-nd/4.0/
Language
eng
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