Low-power adaptive pseudo noise code acquisition for spread-spectrum systems

Mau L. Wu; Kuei-Ann Wen

doi:10.1109/TWC.2002.804187

Low-power adaptive pseudo noise code acquisition for spread-spectrum systems

Mau L. Wu^*, Kuei-Ann Wen

^*Corresponding author for this work

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

1 Scopus citations

Abstract

A novel pseudo noise code acquisition combined with the newly proposed adaptive sampling rate and threshold control (ASTC) algorithm is derived for low-power spread-spectrum systems with complementary metal-oxide-semiconductor implementations. Low-power performance can be achieved by reducing the sampling rate of the proposed system while maintaining the system performance. The sampling rate is dynamically updated due to the change of the channel noise level. Under the assumptions that the channel is additive white Gaussian noise slow-fading channel, up to 74.3% reduction in power consumption compared to the conventional fixed-sampling rate and fixed-threshold architecture is demonstrated with insignificant increase of system complexity. The proposed architecture can be applied to the design of low-power and controllable- performance spread-spectrum communication systems.

Original language	English
Pages (from-to)	748-760
Number of pages	13
Journal	IEEE Transactions on Wireless Communications
Volume	1
Issue number	4
DOIs	https://doi.org/10.1109/TWC.2002.804187
State	Published - 1 Dec 2002

Keywords

Adaptive computing
Code acquisition
Communication
Low-power design
Spread spectrum

Access to Document

10.1109/TWC.2002.804187

Cite this

@article{bb87d68235614a6db86e12559fbc2a31,

title = "Low-power adaptive pseudo noise code acquisition for spread-spectrum systems",

abstract = "A novel pseudo noise code acquisition combined with the newly proposed adaptive sampling rate and threshold control (ASTC) algorithm is derived for low-power spread-spectrum systems with complementary metal-oxide-semiconductor implementations. Low-power performance can be achieved by reducing the sampling rate of the proposed system while maintaining the system performance. The sampling rate is dynamically updated due to the change of the channel noise level. Under the assumptions that the channel is additive white Gaussian noise slow-fading channel, up to 74.3% reduction in power consumption compared to the conventional fixed-sampling rate and fixed-threshold architecture is demonstrated with insignificant increase of system complexity. The proposed architecture can be applied to the design of low-power and controllable- performance spread-spectrum communication systems.",

keywords = "Adaptive computing, Code acquisition, Communication, Low-power design, Spread spectrum",

author = "Wu, {Mau L.} and Kuei-Ann Wen",

year = "2002",

month = dec,

day = "1",

doi = "10.1109/TWC.2002.804187",

language = "English",

volume = "1",

pages = "748--760",

journal = "IEEE Transactions on Wireless Communications",

issn = "1536-1276",

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

number = "4",

}

TY - JOUR

T1 - Low-power adaptive pseudo noise code acquisition for spread-spectrum systems

AU - Wu, Mau L.

AU - Wen, Kuei-Ann

PY - 2002/12/1

Y1 - 2002/12/1

N2 - A novel pseudo noise code acquisition combined with the newly proposed adaptive sampling rate and threshold control (ASTC) algorithm is derived for low-power spread-spectrum systems with complementary metal-oxide-semiconductor implementations. Low-power performance can be achieved by reducing the sampling rate of the proposed system while maintaining the system performance. The sampling rate is dynamically updated due to the change of the channel noise level. Under the assumptions that the channel is additive white Gaussian noise slow-fading channel, up to 74.3% reduction in power consumption compared to the conventional fixed-sampling rate and fixed-threshold architecture is demonstrated with insignificant increase of system complexity. The proposed architecture can be applied to the design of low-power and controllable- performance spread-spectrum communication systems.

AB - A novel pseudo noise code acquisition combined with the newly proposed adaptive sampling rate and threshold control (ASTC) algorithm is derived for low-power spread-spectrum systems with complementary metal-oxide-semiconductor implementations. Low-power performance can be achieved by reducing the sampling rate of the proposed system while maintaining the system performance. The sampling rate is dynamically updated due to the change of the channel noise level. Under the assumptions that the channel is additive white Gaussian noise slow-fading channel, up to 74.3% reduction in power consumption compared to the conventional fixed-sampling rate and fixed-threshold architecture is demonstrated with insignificant increase of system complexity. The proposed architecture can be applied to the design of low-power and controllable- performance spread-spectrum communication systems.

KW - Adaptive computing

KW - Code acquisition

KW - Communication

KW - Low-power design

KW - Spread spectrum

UR - http://www.scopus.com/inward/record.url?scp=33845570649&partnerID=8YFLogxK

U2 - 10.1109/TWC.2002.804187

DO - 10.1109/TWC.2002.804187

M3 - Article

AN - SCOPUS:33845570649

SN - 1536-1276

VL - 1

SP - 748

EP - 760

JO - IEEE Transactions on Wireless Communications

JF - IEEE Transactions on Wireless Communications

IS - 4

ER -

Low-power adaptive pseudo noise code acquisition for spread-spectrum systems

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this