Adaptive hybrid acquisition with antenna diversity in CDMA systems

Chae Hyun Lim; Hae Sock Oh; Dong Seog Han; Myoung Je Cho

Adaptive hybrid acquisition with antenna diversity in CDMA systems

Chae Hyun Lim
, Hae Sock Oh
, Dong Seog Han
, Myoung Je Cho

Kyungpook National University

Research output: Contribution to conference › Paper › peer-review

1 Scopus citations

Abstract

Since existing acquisition systems have a fixed threshold value, they are unable to adapt to varying mobile communication environments. It results in a high false-alarm rate or low detection probability. In this paper, an adaptive hybrid acquisition system that adopts an antenna diversity technique and the cell-averaging constant false alarm rate (CA-CFAR) algorithm is presented to acquire a pseudo-noise (PN) signal for CDMA systems. The CA-CFAR algorithm and an antenna diversity technique are adopted to adjust the decision threshold according to environments and to improve detection performance, respectively. The detection probability, false alarm rate, miss detection probability, and mean acquisition time in the Rayleigh fading channel are derived and compared to those of the conventional hybrid acquisition system with fixed threshold.

Original language	English
Pages	1243-1247
Number of pages	5
State	Published - 2001
Event	Milcom 2001: Communications for Network-Centric: Creating the Information Force - McLean, VA, United States Duration: 28 Oct 2001 → 31 Oct 2001

Conference

Conference	Milcom 2001: Communications for Network-Centric: Creating the Information Force
Country/Territory	United States
City	McLean, VA
Period	28/10/01 → 31/10/01

Cite this

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title = "Adaptive hybrid acquisition with antenna diversity in CDMA systems",

abstract = "Since existing acquisition systems have a fixed threshold value, they are unable to adapt to varying mobile communication environments. It results in a high false-alarm rate or low detection probability. In this paper, an adaptive hybrid acquisition system that adopts an antenna diversity technique and the cell-averaging constant false alarm rate (CA-CFAR) algorithm is presented to acquire a pseudo-noise (PN) signal for CDMA systems. The CA-CFAR algorithm and an antenna diversity technique are adopted to adjust the decision threshold according to environments and to improve detection performance, respectively. The detection probability, false alarm rate, miss detection probability, and mean acquisition time in the Rayleigh fading channel are derived and compared to those of the conventional hybrid acquisition system with fixed threshold.",

author = "Lim, \{Chae Hyun\} and Oh, \{Hae Sock\} and Han, \{Dong Seog\} and Cho, \{Myoung Je\}",

year = "2001",

language = "English",

pages = "1243--1247",

note = "Milcom 2001: Communications for Network-Centric: Creating the Information Force ; Conference date: 28-10-2001 Through 31-10-2001",

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TY - CONF

T1 - Adaptive hybrid acquisition with antenna diversity in CDMA systems

AU - Lim, Chae Hyun

AU - Oh, Hae Sock

AU - Han, Dong Seog

AU - Cho, Myoung Je

PY - 2001

Y1 - 2001

N2 - Since existing acquisition systems have a fixed threshold value, they are unable to adapt to varying mobile communication environments. It results in a high false-alarm rate or low detection probability. In this paper, an adaptive hybrid acquisition system that adopts an antenna diversity technique and the cell-averaging constant false alarm rate (CA-CFAR) algorithm is presented to acquire a pseudo-noise (PN) signal for CDMA systems. The CA-CFAR algorithm and an antenna diversity technique are adopted to adjust the decision threshold according to environments and to improve detection performance, respectively. The detection probability, false alarm rate, miss detection probability, and mean acquisition time in the Rayleigh fading channel are derived and compared to those of the conventional hybrid acquisition system with fixed threshold.

AB - Since existing acquisition systems have a fixed threshold value, they are unable to adapt to varying mobile communication environments. It results in a high false-alarm rate or low detection probability. In this paper, an adaptive hybrid acquisition system that adopts an antenna diversity technique and the cell-averaging constant false alarm rate (CA-CFAR) algorithm is presented to acquire a pseudo-noise (PN) signal for CDMA systems. The CA-CFAR algorithm and an antenna diversity technique are adopted to adjust the decision threshold according to environments and to improve detection performance, respectively. The detection probability, false alarm rate, miss detection probability, and mean acquisition time in the Rayleigh fading channel are derived and compared to those of the conventional hybrid acquisition system with fixed threshold.

UR - https://www.scopus.com/pages/publications/0035727204

M3 - Paper

AN - SCOPUS:0035727204

SP - 1243

EP - 1247

T2 - Milcom 2001: Communications for Network-Centric: Creating the Information Force

Y2 - 28 October 2001 through 31 October 2001

ER -

Adaptive hybrid acquisition with antenna diversity in CDMA systems

Abstract

Conference

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