Efficient implementation of pilot-aided 32 QAM for fixed wireless and mobile ISDN applications

Fahim Tariq,; AR Nix; D Love

doi:10.1109/VETECS.2000.851545

Abstract

This paper presents the design and performance of a pilot tone-aided 32 QAM modem developed for wireless ISDN applications. The modem is capable of transmitting a gross data rate of 70 kbit/s in a 20 kHz channel spacing. A low complexity receiver has been designed that allows the effects of fading and frequency offset to be removed digitally at a low IF using information extracted from the pilot tone. The design has been fully evaluated in narrowband Rayleigh and Rician fading channels. Computer simulations show that extreme Doppler shifts and frequency offsets have little effect on system performance. The design is suitable for mobile radio as well as fixed applications such as wireless in the local loop (WLL).

Original language	English
Pages	680 - 684
DOIs	https://doi.org/10.1109/VETECS.2000.851545
Publication status	Published - May 2000

Bibliographical note

Sponsorship: This work was funded by Linear Modulation Technology

Terms of use: Copyright © 2000 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 2000. 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 [email protected].

By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Name of Conference: 51st Vehicular Technology Conference 2000 (VTC 2000-Spring)
Venue of Conference: Tokyo

Keywords

land mobile radio
quadrature amplitude modulation
Rayleigh channels

Access to Document

10.1109/VETECS.2000.851545

Tariq IEEE VTC Spring2000Accepted author manuscript, 450 KB

http://hdl.handle.net/1983/385

Handle.net

Persistent link

Cite this

@conference{579b6971844f40f48daab29ad9e0e0df,

title = "Efficient implementation of pilot-aided 32 QAM for fixed wireless and mobile ISDN applications",

abstract = "This paper presents the design and performance of a pilot tone-aided 32 QAM modem developed for wireless ISDN applications. The modem is capable of transmitting a gross data rate of 70 kbit/s in a 20 kHz channel spacing. A low complexity receiver has been designed that allows the effects of fading and frequency offset to be removed digitally at a low IF using information extracted from the pilot tone. The design has been fully evaluated in narrowband Rayleigh and Rician fading channels. Computer simulations show that extreme Doppler shifts and frequency offsets have little effect on system performance. The design is suitable for mobile radio as well as fixed applications such as wireless in the local loop (WLL).",

keywords = "land mobile radio, quadrature amplitude modulation, Rayleigh channels",

author = "Fahim Tariq, and AR Nix and D Love",

note = "Sponsorship: This work was funded by Linear Modulation Technology Terms of use: Copyright {\textcopyright} 2000 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 2000. 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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. Name of Conference: 51st Vehicular Technology Conference 2000 (VTC 2000-Spring) Venue of Conference: Tokyo",

year = "2000",

month = may,

doi = "10.1109/VETECS.2000.851545",

language = "English",

pages = "680 -- 684",

}

TY - CONF

T1 - Efficient implementation of pilot-aided 32 QAM for fixed wireless and mobile ISDN applications

AU - Tariq,, Fahim

AU - Nix, AR

AU - Love, D

N1 - Sponsorship: This work was funded by Linear Modulation Technology Terms of use: Copyright © 2000 IEEE. Reprinted from Proceedings of IEEE Vehicular Technology Conference, Spring 2000. 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 [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. Name of Conference: 51st Vehicular Technology Conference 2000 (VTC 2000-Spring) Venue of Conference: Tokyo

PY - 2000/5

Y1 - 2000/5

N2 - This paper presents the design and performance of a pilot tone-aided 32 QAM modem developed for wireless ISDN applications. The modem is capable of transmitting a gross data rate of 70 kbit/s in a 20 kHz channel spacing. A low complexity receiver has been designed that allows the effects of fading and frequency offset to be removed digitally at a low IF using information extracted from the pilot tone. The design has been fully evaluated in narrowband Rayleigh and Rician fading channels. Computer simulations show that extreme Doppler shifts and frequency offsets have little effect on system performance. The design is suitable for mobile radio as well as fixed applications such as wireless in the local loop (WLL).

AB - This paper presents the design and performance of a pilot tone-aided 32 QAM modem developed for wireless ISDN applications. The modem is capable of transmitting a gross data rate of 70 kbit/s in a 20 kHz channel spacing. A low complexity receiver has been designed that allows the effects of fading and frequency offset to be removed digitally at a low IF using information extracted from the pilot tone. The design has been fully evaluated in narrowband Rayleigh and Rician fading channels. Computer simulations show that extreme Doppler shifts and frequency offsets have little effect on system performance. The design is suitable for mobile radio as well as fixed applications such as wireless in the local loop (WLL).

KW - land mobile radio

KW - quadrature amplitude modulation

KW - Rayleigh channels

U2 - 10.1109/VETECS.2000.851545

DO - 10.1109/VETECS.2000.851545

M3 - Conference Abstract

SP - 680

EP - 684

ER -