Design of Multicarrier OFDM Modulator/Demodulator Based on Discrete Hartley Transform

Muh-Tian SHIUE; Chin-Kuo JAO; Pei-Shin CHEN

doi:10.1587/transfun.E93.A.1016

Design of Multicarrier OFDM Modulator/Demodulator Based on Discrete Hartley Transform

Muh-Tian SHIUE, Chin-Kuo JAO, Pei-Shin CHEN

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In this paper, a novel orthogonal frequency-division multiplexing (OFDM) modulator/demodulator based on real-valued discrete Hartley transform (DHT) is presented and implemented for the IEEE 802.11a/g wireless local area network (LAN). Instead of the conventional complex-valued fast Fourier transform (FFT) for OFDM systems, the proposed architecture employs two real-valued fast DHT (FHT) kernels and one post processing unit. By taking advantage of the real-valued operation of FHT, this approach reduces the number of multiplications compared with the radix-2 FFT. The proposed DHT-based modulator/demodulator was designed and fabricated in 0.18-µm CMOS technology with a core area of 928935 µm². The average power consumption is about 20.16 mW at 20 MHz and 1.8 V supply voltage. Measurement results of the integrated circuit illustrate its superior chip area and power consumption.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E93-A No.6 pp.1016-1023

Publication Date: 2010/06/01

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Online ISSN: 1745-1337

DOI: 10.1587/transfun.E93.A.1016

Type of Manuscript: Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)

Category: Communication Theory and Signals

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Muh-Tian SHIUE, Chin-Kuo JAO, Pei-Shin CHEN, "Design of Multicarrier OFDM Modulator/Demodulator Based on Discrete Hartley Transform" in IEICE TRANSACTIONS on Fundamentals, vol. E93-A, no. 6, pp. 1016-1023, June 2010, doi: 10.1587/transfun.E93.A.1016.
Abstract: In this paper, a novel orthogonal frequency-division multiplexing (OFDM) modulator/demodulator based on real-valued discrete Hartley transform (DHT) is presented and implemented for the IEEE 802.11a/g wireless local area network (LAN). Instead of the conventional complex-valued fast Fourier transform (FFT) for OFDM systems, the proposed architecture employs two real-valued fast DHT (FHT) kernels and one post processing unit. By taking advantage of the real-valued operation of FHT, this approach reduces the number of multiplications compared with the radix-2 FFT. The proposed DHT-based modulator/demodulator was designed and fabricated in 0.18-µm CMOS technology with a core area of 928935 µm². The average power consumption is about 20.16 mW at 20 MHz and 1.8 V supply voltage. Measurement results of the integrated circuit illustrate its superior chip area and power consumption.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E93.A.1016/_p

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@ARTICLE{e93-a_6_1016,
author={Muh-Tian SHIUE, Chin-Kuo JAO, Pei-Shin CHEN, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Design of Multicarrier OFDM Modulator/Demodulator Based on Discrete Hartley Transform},
year={2010},
volume={E93-A},
number={6},
pages={1016-1023},
abstract={In this paper, a novel orthogonal frequency-division multiplexing (OFDM) modulator/demodulator based on real-valued discrete Hartley transform (DHT) is presented and implemented for the IEEE 802.11a/g wireless local area network (LAN). Instead of the conventional complex-valued fast Fourier transform (FFT) for OFDM systems, the proposed architecture employs two real-valued fast DHT (FHT) kernels and one post processing unit. By taking advantage of the real-valued operation of FHT, this approach reduces the number of multiplications compared with the radix-2 FFT. The proposed DHT-based modulator/demodulator was designed and fabricated in 0.18-µm CMOS technology with a core area of 928935 µm². The average power consumption is about 20.16 mW at 20 MHz and 1.8 V supply voltage. Measurement results of the integrated circuit illustrate its superior chip area and power consumption.},
keywords={},
doi={10.1587/transfun.E93.A.1016},
ISSN={1745-1337},
month={June},}

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TY - JOUR
TI - Design of Multicarrier OFDM Modulator/Demodulator Based on Discrete Hartley Transform
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1016
EP - 1023
AU - Muh-Tian SHIUE
AU - Chin-Kuo JAO
AU - Pei-Shin CHEN
PY - 2010
DO - 10.1587/transfun.E93.A.1016
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E93-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2010
AB - In this paper, a novel orthogonal frequency-division multiplexing (OFDM) modulator/demodulator based on real-valued discrete Hartley transform (DHT) is presented and implemented for the IEEE 802.11a/g wireless local area network (LAN). Instead of the conventional complex-valued fast Fourier transform (FFT) for OFDM systems, the proposed architecture employs two real-valued fast DHT (FHT) kernels and one post processing unit. By taking advantage of the real-valued operation of FHT, this approach reduces the number of multiplications compared with the radix-2 FFT. The proposed DHT-based modulator/demodulator was designed and fabricated in 0.18-µm CMOS technology with a core area of 928935 µm². The average power consumption is about 20.16 mW at 20 MHz and 1.8 V supply voltage. Measurement results of the integrated circuit illustrate its superior chip area and power consumption.
ER -