Development of an OFDM based high speed wireless LAN platform using the TI C6x DSP

MF Tariq; T Baltaci; TR Horseman; MRG Butler; AR Nix

doi:10.1109/ICC.2002.996908

Development of an OFDM based high speed wireless LAN platform using the TI C6x DSP

MF Tariq, T Baltaci, TR Horseman, MRG Butler, AR Nix

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

20 Citations (Scopus)

389 Downloads (Pure)

Abstract

Coded orthogonal frequency division multiplexing (COFDM) is currently specified in all three of the world's 5 GHz wireless LAN standards (HIPERLAN/2, IEEE 802.11a and MMAC HiSWANa). This technology was chosen due to its robustness at high data rates in a frequency selective multipath channel. Each standard operates using adaptive subband quadrature amplitude modulation (QAM) and offers a maximum data rate of 54 Mbits/s over a 20 MHz channel. This paper describes a real-time DSP implementation of an asynchronous OFDM based high speed WLAN system. The software reconfigurable OFDM based platform is developed around the Texas Instruments fixed point TMS320C6201 DSP. The physical layer DSP performance is evaluated and compared for an indoor channel against floating point C++ based simulations. Data throughput and complexity estimates are generated from the resulting hardware platform. Finally, a video based communications application is developed to operate over the demonstrator. Results indicate that the fixed point DSP solution can operate within 0.5 dB of the floating point simulation in an AWGN channel. For the indoor fading channel, an implementation loss of around 2.5 dB was observed

Translated title of the contribution	Development of an OFDM based high speed wireless LAN platform using the TI C6x DSP
Original language	English
Title of host publication	IEEE International Conference on Communications, 2002 (ICC 2002), New York
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	522 - 526
Number of pages	5
Volume	1
ISBN (Print)	0780374002
DOIs	https://doi.org/10.1109/ICC.2002.996908
Publication status	Published - Apr 2002
Event	International Conference on Communications (ICC) - New York, United States Duration: 1 Apr 2002 → …

Conference

Conference	International Conference on Communications (ICC)
Country	United States
City	New York
Period	1/04/02 → …

Bibliographical note

Rose publication type: Conference contribution

Sponsorship: The authors would like to thank Rob Heaton and Paul Ratliff from Mitsubishi Electric ITE-VIL United Kingdom for their valuable input and support of this work

Terms of use: Copyright © 2002 IEEE. Reprinted from Proceedings of IEEE International Conference on Communications, 2002. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org.
By choosing to view this document, you agree to all provisions of the copyright laws protecting it

Keywords

IEEE 802.11a
Hiperlan/2
WLAN
COFDM
5 GHz

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10.1109/ICC.2002.996908

Tariq IEEE ICC Apr2002Accepted author manuscript, 793 KB

http://hdl.handle.net/1983/183

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Cite this

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title = "Development of an OFDM based high speed wireless LAN platform using the TI C6x DSP",

abstract = "Coded orthogonal frequency division multiplexing (COFDM) is currently specified in all three of the world's 5 GHz wireless LAN standards (HIPERLAN/2, IEEE 802.11a and MMAC HiSWANa). This technology was chosen due to its robustness at high data rates in a frequency selective multipath channel. Each standard operates using adaptive subband quadrature amplitude modulation (QAM) and offers a maximum data rate of 54 Mbits/s over a 20 MHz channel. This paper describes a real-time DSP implementation of an asynchronous OFDM based high speed WLAN system. The software reconfigurable OFDM based platform is developed around the Texas Instruments fixed point TMS320C6201 DSP. The physical layer DSP performance is evaluated and compared for an indoor channel against floating point C++ based simulations. Data throughput and complexity estimates are generated from the resulting hardware platform. Finally, a video based communications application is developed to operate over the demonstrator. Results indicate that the fixed point DSP solution can operate within 0.5 dB of the floating point simulation in an AWGN channel. For the indoor fading channel, an implementation loss of around 2.5 dB was observed",

keywords = "IEEE 802.11a, Hiperlan/2, WLAN, COFDM, 5 GHz",

author = "MF Tariq and T Baltaci and TR Horseman and MRG Butler and AR Nix",

note = "Rose publication type: Conference contribution Sponsorship: The authors would like to thank Rob Heaton and Paul Ratliff from Mitsubishi Electric ITE-VIL United Kingdom for their valuable input and support of this work Terms of use: Copyright {\textcopyright} 2002 IEEE. Reprinted from Proceedings of IEEE International Conference on Communications, 2002. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it ; International Conference on Communications (ICC) ; Conference date: 01-04-2002",

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isbn = "0780374002",

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booktitle = "IEEE International Conference on Communications, 2002 (ICC 2002), New York",

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Tariq, MF, Baltaci, T, Horseman, TR, Butler, MRG & Nix, AR 2002, Development of an OFDM based high speed wireless LAN platform using the TI C6x DSP. in IEEE International Conference on Communications, 2002 (ICC 2002), New York. vol. 1, Institute of Electrical and Electronics Engineers (IEEE), pp. 522 - 526, International Conference on Communications (ICC), New York, United States, 1/04/02. https://doi.org/10.1109/ICC.2002.996908

Development of an OFDM based high speed wireless LAN platform using the TI C6x DSP. / Tariq, MF; Baltaci, T; Horseman, TR; Butler, MRG; Nix, AR.

IEEE International Conference on Communications, 2002 (ICC 2002), New York. Vol. 1 Institute of Electrical and Electronics Engineers (IEEE), 2002. p. 522 - 526.

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

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N1 - Rose publication type: Conference contribution Sponsorship: The authors would like to thank Rob Heaton and Paul Ratliff from Mitsubishi Electric ITE-VIL United Kingdom for their valuable input and support of this work Terms of use: Copyright © 2002 IEEE. Reprinted from Proceedings of IEEE International Conference on Communications, 2002. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it

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AB - Coded orthogonal frequency division multiplexing (COFDM) is currently specified in all three of the world's 5 GHz wireless LAN standards (HIPERLAN/2, IEEE 802.11a and MMAC HiSWANa). This technology was chosen due to its robustness at high data rates in a frequency selective multipath channel. Each standard operates using adaptive subband quadrature amplitude modulation (QAM) and offers a maximum data rate of 54 Mbits/s over a 20 MHz channel. This paper describes a real-time DSP implementation of an asynchronous OFDM based high speed WLAN system. The software reconfigurable OFDM based platform is developed around the Texas Instruments fixed point TMS320C6201 DSP. The physical layer DSP performance is evaluated and compared for an indoor channel against floating point C++ based simulations. Data throughput and complexity estimates are generated from the resulting hardware platform. Finally, a video based communications application is developed to operate over the demonstrator. Results indicate that the fixed point DSP solution can operate within 0.5 dB of the floating point simulation in an AWGN channel. For the indoor fading channel, an implementation loss of around 2.5 dB was observed

KW - IEEE 802.11a

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