Time diversity CDMA scheme employing orthogonal modulation for time varying channels

Shuji Kubota, Shuzo Kato, Kamilo Feher

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to increase the channel capacity of CDMA (Code Division Multiple Access) mobile and personal communication systems, a new time diversity CDMA scheme that employs orthogonal modulation is proposed. The time diversity CDMA scheme with orthogonal modulation reduces the required Eb/(No + Io) by 5dB at Pe = 10-2 in Rayleigh fading environments with fDT (the product of Doppler frequency and one symbol duration) values ranging from 0.002 to 0.02. This improvement in required Eb/(No + Io) significantly increases the channel capacity of CDMA communication systems that have time varying channels. In addition, the computer simulation results show that the required time delay values of the time diversity scheme are reasonably short (20-100 symbols for 10kbps transmission) for fDT values ranging from 0.002 to 0.02.

Original languageEnglish
Title of host publicationIEEE Vehicular Technology Conference
Place of PublicationPiscataway, NJ, United States
PublisherPubl by IEEE
Pages444-447
Number of pages4
ISBN (Print)078031266X
Publication statusPublished - 1993
Externally publishedYes
EventProceedings of the 43rd IEEE Vehicular Technology Conference - Secaucus, NJ, USA
Duration: 1993 May 181993 May 20

Other

OtherProceedings of the 43rd IEEE Vehicular Technology Conference
CitySecaucus, NJ, USA
Period93/5/1893/5/20

Fingerprint

Code division multiple access
Modulation
Channel capacity
Personal communication systems
Mobile telecommunication systems
Rayleigh fading
Time delay
Communication systems
Computer simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Kubota, S., Kato, S., & Feher, K. (1993). Time diversity CDMA scheme employing orthogonal modulation for time varying channels. In IEEE Vehicular Technology Conference (pp. 444-447). Piscataway, NJ, United States: Publ by IEEE.

Time diversity CDMA scheme employing orthogonal modulation for time varying channels. / Kubota, Shuji; Kato, Shuzo; Feher, Kamilo.

IEEE Vehicular Technology Conference. Piscataway, NJ, United States : Publ by IEEE, 1993. p. 444-447.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kubota, S, Kato, S & Feher, K 1993, Time diversity CDMA scheme employing orthogonal modulation for time varying channels. in IEEE Vehicular Technology Conference. Publ by IEEE, Piscataway, NJ, United States, pp. 444-447, Proceedings of the 43rd IEEE Vehicular Technology Conference, Secaucus, NJ, USA, 93/5/18.
Kubota S, Kato S, Feher K. Time diversity CDMA scheme employing orthogonal modulation for time varying channels. In IEEE Vehicular Technology Conference. Piscataway, NJ, United States: Publ by IEEE. 1993. p. 444-447
Kubota, Shuji ; Kato, Shuzo ; Feher, Kamilo. / Time diversity CDMA scheme employing orthogonal modulation for time varying channels. IEEE Vehicular Technology Conference. Piscataway, NJ, United States : Publ by IEEE, 1993. pp. 444-447
@inproceedings{5df1784065454e80b03ad60fd17187bc,
title = "Time diversity CDMA scheme employing orthogonal modulation for time varying channels",
abstract = "In order to increase the channel capacity of CDMA (Code Division Multiple Access) mobile and personal communication systems, a new time diversity CDMA scheme that employs orthogonal modulation is proposed. The time diversity CDMA scheme with orthogonal modulation reduces the required Eb/(No + Io) by 5dB at Pe = 10-2 in Rayleigh fading environments with fDT (the product of Doppler frequency and one symbol duration) values ranging from 0.002 to 0.02. This improvement in required Eb/(No + Io) significantly increases the channel capacity of CDMA communication systems that have time varying channels. In addition, the computer simulation results show that the required time delay values of the time diversity scheme are reasonably short (20-100 symbols for 10kbps transmission) for fDT values ranging from 0.002 to 0.02.",
author = "Shuji Kubota and Shuzo Kato and Kamilo Feher",
year = "1993",
language = "English",
isbn = "078031266X",
pages = "444--447",
booktitle = "IEEE Vehicular Technology Conference",
publisher = "Publ by IEEE",

}

TY - GEN

T1 - Time diversity CDMA scheme employing orthogonal modulation for time varying channels

AU - Kubota, Shuji

AU - Kato, Shuzo

AU - Feher, Kamilo

PY - 1993

Y1 - 1993

N2 - In order to increase the channel capacity of CDMA (Code Division Multiple Access) mobile and personal communication systems, a new time diversity CDMA scheme that employs orthogonal modulation is proposed. The time diversity CDMA scheme with orthogonal modulation reduces the required Eb/(No + Io) by 5dB at Pe = 10-2 in Rayleigh fading environments with fDT (the product of Doppler frequency and one symbol duration) values ranging from 0.002 to 0.02. This improvement in required Eb/(No + Io) significantly increases the channel capacity of CDMA communication systems that have time varying channels. In addition, the computer simulation results show that the required time delay values of the time diversity scheme are reasonably short (20-100 symbols for 10kbps transmission) for fDT values ranging from 0.002 to 0.02.

AB - In order to increase the channel capacity of CDMA (Code Division Multiple Access) mobile and personal communication systems, a new time diversity CDMA scheme that employs orthogonal modulation is proposed. The time diversity CDMA scheme with orthogonal modulation reduces the required Eb/(No + Io) by 5dB at Pe = 10-2 in Rayleigh fading environments with fDT (the product of Doppler frequency and one symbol duration) values ranging from 0.002 to 0.02. This improvement in required Eb/(No + Io) significantly increases the channel capacity of CDMA communication systems that have time varying channels. In addition, the computer simulation results show that the required time delay values of the time diversity scheme are reasonably short (20-100 symbols for 10kbps transmission) for fDT values ranging from 0.002 to 0.02.

UR - http://www.scopus.com/inward/record.url?scp=0027307086&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027307086&partnerID=8YFLogxK

M3 - Conference contribution

SN - 078031266X

SP - 444

EP - 447

BT - IEEE Vehicular Technology Conference

PB - Publ by IEEE

CY - Piscataway, NJ, United States

ER -