NDLI: Blind despreading of WCDMA signals

Content Provider	IEEE Xplore Digital Library
Author	Zhao, Zhi-jin Gu, Xiao-wei Shen, Lei Zhan, Yi
Copyright Year	2014
Description	Author affiliation: Zhejiang Provincial Key Lab of Data Storage and Transmission Technology, Hangzhou Dianzi University, 310018, China (Zhao, Zhi-jin; Gu, Xiao-wei; Shen, Lei) \|\| State Key Lab of Information Control Technology in Communication System of No.36 Research Institute, China Electronic Technology Corporation, Jiaxing Zhejiang 314001, China (Zhan, Yi)
Abstract	Aiming at despreading Wideband Code Division Multiple Access (WCDMA) signal blindly, the phase of Gold sequence is estimated firstly by utilizing the maximum value of the fourth-order cumulant slice of the product of WCDMA signal with the optimum m-sequences of different delays, and then the signal is descrambled. With the utilization of particular structure of OVSF codes, the signal is synchronized through the maximum value of cross-correlation function of signal's segments. By calculating the cross-correlation of each row of Hadamard matrix with the signal that has been descrambled and synchronized before, the OVSF code is obtained from the column of the matrix corresponding to the largest value of the cross-correlation function, and the signal is despread finally. Simulation results show the better performance of the proposed method in despreading WCDMA signals under the background of additive white Gaussian noise.
Starting Page	32
Ending Page	36
File Size	982092
Page Count	5
File Format	PDF
ISBN	9781479921881
ISSN	21645221
e-ISBN	9781479921867
DOI	10.1109/ICOSP.2014.7014964
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiaccess communication Spread spectrum communication Bit error rate Gold Signal to noise ratio Synchronization Error correction Orthogonal Variable Spreading Factor (OVSF) code estimation Wideband Code Division Multiple Access (WCDMA) signals Fourth-order cumulant slice Blind despreading
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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