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Precise BER Formulas for Asynchronous QPSK-Modulated DS-CDMA Systems Using Random Quaternary Spreading Over Rayleigh Channels

Precise BER Formulas for Asynchronous QPSK-Modulated DS-CDMA Systems Using Random Quaternary Spreading Over Rayleigh Channels
Precise BER Formulas for Asynchronous QPSK-Modulated DS-CDMA Systems Using Random Quaternary Spreading Over Rayleigh Channels
Precise bit-error-ratio (BER) analysis of an asynchronous QPSK-modulated direct-sequence code-division multiple-access system using random quaternary spreading sequences for transmission over Rayleigh channels is performed based on the characteristic-function approach. Its accuracy is verified by our numerical simulation results and also compared with those of the Gaussian approximation. Index Terms—Asynchronous direct-sequence code-division multiple-access (DS-CDMA), bit-error-ratio (BER), precise, QPSK, quarternary spreading, Rayleigh.
0018-9545
239-242
Liu, X
b9b5844e-6141-4535-bbad-48b5abf07d33
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1
Liu, X
b9b5844e-6141-4535-bbad-48b5abf07d33
Hanzo, L
66e7266f-3066-4fc0-8391-e000acce71a1

Liu, X and Hanzo, L (2008) Precise BER Formulas for Asynchronous QPSK-Modulated DS-CDMA Systems Using Random Quaternary Spreading Over Rayleigh Channels. IEEE Transactions on Vehicular Technology, 57 (1), 239-242.

Record type: Article

Abstract

Precise bit-error-ratio (BER) analysis of an asynchronous QPSK-modulated direct-sequence code-division multiple-access system using random quaternary spreading sequences for transmission over Rayleigh channels is performed based on the characteristic-function approach. Its accuracy is verified by our numerical simulation results and also compared with those of the Gaussian approximation. Index Terms—Asynchronous direct-sequence code-division multiple-access (DS-CDMA), bit-error-ratio (BER), precise, QPSK, quarternary spreading, Rayleigh.

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Published date: January 2008
Organisations: Southampton Wireless Group
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Identifiers

Local EPrints ID: 265118
URI: http://eprints.soton.ac.uk/id/eprint/265118
ISSN: 0018-9545
PURE UUID: 0acd05fd-3d7e-4642-9970-e0c64efaeec3
ORCID for L Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 27 Jan 2008 17:18
Last modified: 18 Mar 2024 02:34

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Contributors

Author: X Liu
Author: L Hanzo ORCID iD

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