Separate Turbo Code and Single Turbo Code Adaptive OFDM Transmissions

Lei Ye; Alister Burr

doi:10.1155/2009/609386

Separate Turbo Code and Single Turbo Code Adaptive OFDM Transmissions

Lei Ye, Alister Burr

Electronic Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This paper discusses the application of adaptive modulation and adaptive rate turbo coding to orthogonal frequency-division multiplexing (OFDM), to increase throughput on the time and frequency selective channel. The adaptive turbo code scheme is based on a subband adaptive method, and compares two adaptive systems: a conventional approach where a separate turbo code is used for each subband, and a single turbo code adaptive system which uses a single turbo code over all subbands. Five modulation schemes (BPSK, QPSK, 8AMPM, 16QAM, and 64QAM) are employed and turbo code rates considered are 1/2 and 1/3. The performances of both systems with high (10(-2)) and low (10(-4)) BER targets are compared. Simulation results for throughput and BER show that the single turbo code adaptive system provides a significant improvement. Copyright (C) 2009 L. Ye and A. Burr. 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.

Original language	English
Article number	609386
Pages (from-to)	-
Number of pages	7
Journal	EURASIP JOURNAL ON WIRELESS COMMUNICATIONS AND NETWORKING
Volume	2009
DOIs	https://doi.org/10.1155/2009/609386
Publication status	Published - 2009

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title = "Separate Turbo Code and Single Turbo Code Adaptive OFDM Transmissions",

abstract = "This paper discusses the application of adaptive modulation and adaptive rate turbo coding to orthogonal frequency-division multiplexing (OFDM), to increase throughput on the time and frequency selective channel. The adaptive turbo code scheme is based on a subband adaptive method, and compares two adaptive systems: a conventional approach where a separate turbo code is used for each subband, and a single turbo code adaptive system which uses a single turbo code over all subbands. Five modulation schemes (BPSK, QPSK, 8AMPM, 16QAM, and 64QAM) are employed and turbo code rates considered are 1/2 and 1/3. The performances of both systems with high (10(-2)) and low (10(-4)) BER targets are compared. Simulation results for throughput and BER show that the single turbo code adaptive system provides a significant improvement. Copyright (C) 2009 L. Ye and A. Burr. 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.",

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AB - This paper discusses the application of adaptive modulation and adaptive rate turbo coding to orthogonal frequency-division multiplexing (OFDM), to increase throughput on the time and frequency selective channel. The adaptive turbo code scheme is based on a subband adaptive method, and compares two adaptive systems: a conventional approach where a separate turbo code is used for each subband, and a single turbo code adaptive system which uses a single turbo code over all subbands. Five modulation schemes (BPSK, QPSK, 8AMPM, 16QAM, and 64QAM) are employed and turbo code rates considered are 1/2 and 1/3. The performances of both systems with high (10(-2)) and low (10(-4)) BER targets are compared. Simulation results for throughput and BER show that the single turbo code adaptive system provides a significant improvement. Copyright (C) 2009 L. Ye and A. Burr. 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.

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Separate Turbo Code and Single Turbo Code Adaptive OFDM Transmissions

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