Despread-respread multi-target constant modulus array for CDMA systems

Zhigang Rong; Paul Petrus; Theodore S. Rappaport; Jeffrey H. Reed

doi:10.1109/4234.602601

Despread-respread multi-target constant modulus array for CDMA systems

Zhigang Rong, Paul Petrus, Theodore S. Rappaport, Jeffrey H. Reed

Research output: Contribution to journal › Article › peer-review

Abstract

In this letter, we apply the concept of the despread-respread (DR) algorithm to multi-target arrays for code-division multiple-access (CDMA) signals. The despread-respread algorithm exploits the knowledge of the pseudo-noise (PN) code used to generate the transmitted CDMA signal. We extend the DR algorithm to not only exploit the knowledge of the PN code but also to preserve the constant modulus property of the signal. This new algorithm is called the Least Squares Despread Respread Multi-target Constant Modulus Array (LS-DRMTCMA). LS-DRMTCMA performs better than the Least Squares Despread Respread Multi-Target Array (LS-DRMTA), Least Squares Multi-Target Constant Modulus Array (LS-MTCMA) [1], and Steepest Descent Multi-Target Decision Directed Array (SD-MTDDA).

Original language	English (US)
Pages (from-to)	114-116
Number of pages	3
Journal	IEEE Communications Letters
Volume	1
Issue number	4
DOIs	https://doi.org/10.1109/4234.602601
State	Published - 1997

Keywords

CDMA
CMA
Despread-respread algorithms
LS-DRMTCMA
Multi-target arrays

ASJC Scopus subject areas

Modeling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

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10.1109/4234.602601

Cite this

@article{6bfd9a33f7d2427baec53fd8c5ca3fdf,

title = "Despread-respread multi-target constant modulus array for CDMA systems",

abstract = "In this letter, we apply the concept of the despread-respread (DR) algorithm to multi-target arrays for code-division multiple-access (CDMA) signals. The despread-respread algorithm exploits the knowledge of the pseudo-noise (PN) code used to generate the transmitted CDMA signal. We extend the DR algorithm to not only exploit the knowledge of the PN code but also to preserve the constant modulus property of the signal. This new algorithm is called the Least Squares Despread Respread Multi-target Constant Modulus Array (LS-DRMTCMA). LS-DRMTCMA performs better than the Least Squares Despread Respread Multi-Target Array (LS-DRMTA), Least Squares Multi-Target Constant Modulus Array (LS-MTCMA) [1], and Steepest Descent Multi-Target Decision Directed Array (SD-MTDDA).",

keywords = "CDMA, CMA, Despread-respread algorithms, LS-DRMTCMA, Multi-target arrays",

author = "Zhigang Rong and Paul Petrus and Rappaport, {Theodore S.} and Reed, {Jeffrey H.}",

note = "Funding Information: Manuscript received January 30, 1997. This work was supported by the DARPA under the GloMo project and the MPRG affiliates program. The associate editor coordinating the review of this letter and approving it for publication was Prof. A. Haimovich. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "1997",

doi = "10.1109/4234.602601",

language = "English (US)",

volume = "1",

pages = "114--116",

journal = "IEEE Communications Letters",

issn = "1089-7798",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4",

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TY - JOUR

T1 - Despread-respread multi-target constant modulus array for CDMA systems

AU - Rong, Zhigang

AU - Petrus, Paul

AU - Rappaport, Theodore S.

AU - Reed, Jeffrey H.

N1 - Funding Information: Manuscript received January 30, 1997. This work was supported by the DARPA under the GloMo project and the MPRG affiliates program. The associate editor coordinating the review of this letter and approving it for publication was Prof. A. Haimovich. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 1997

Y1 - 1997

N2 - In this letter, we apply the concept of the despread-respread (DR) algorithm to multi-target arrays for code-division multiple-access (CDMA) signals. The despread-respread algorithm exploits the knowledge of the pseudo-noise (PN) code used to generate the transmitted CDMA signal. We extend the DR algorithm to not only exploit the knowledge of the PN code but also to preserve the constant modulus property of the signal. This new algorithm is called the Least Squares Despread Respread Multi-target Constant Modulus Array (LS-DRMTCMA). LS-DRMTCMA performs better than the Least Squares Despread Respread Multi-Target Array (LS-DRMTA), Least Squares Multi-Target Constant Modulus Array (LS-MTCMA) [1], and Steepest Descent Multi-Target Decision Directed Array (SD-MTDDA).

AB - In this letter, we apply the concept of the despread-respread (DR) algorithm to multi-target arrays for code-division multiple-access (CDMA) signals. The despread-respread algorithm exploits the knowledge of the pseudo-noise (PN) code used to generate the transmitted CDMA signal. We extend the DR algorithm to not only exploit the knowledge of the PN code but also to preserve the constant modulus property of the signal. This new algorithm is called the Least Squares Despread Respread Multi-target Constant Modulus Array (LS-DRMTCMA). LS-DRMTCMA performs better than the Least Squares Despread Respread Multi-Target Array (LS-DRMTA), Least Squares Multi-Target Constant Modulus Array (LS-MTCMA) [1], and Steepest Descent Multi-Target Decision Directed Array (SD-MTDDA).

KW - CDMA

KW - CMA

KW - Despread-respread algorithms

KW - LS-DRMTCMA

KW - Multi-target arrays

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EP - 116

JO - IEEE Communications Letters

JF - IEEE Communications Letters

IS - 4

ER -

Despread-respread multi-target constant modulus array for CDMA systems

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Keywords

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