NDLI: Field experiments on adaptive antenna array-beam forming with simultaneous path timing and its DOA estimations employing directive-beam reception for broadband CDMA packet access in reverse link

Content Provider	IEEE Xplore Digital Library
Author	Kataoka, T. Taoka, H. Higuchi, K. Sawahashi, M.
Copyright Year	2004
Description	Author affiliation: Dept. of IP Radio Network Dev., NTT DoCoMo, Inc., Kanagawa, Japan (Kataoka, T.; Taoka, H.; Higuchi, K.; Sawahashi, M.)
Abstract	This paper presents field experimental results on an adaptive antenna array-beam forming (AAA-BF) receiver with that uses simultaneous estimations of received timings and direction of arrivals (DOAs) of Rake combining paths employing directive beam reception based on a pilot channel-assisted two-dimensional power profile in the reverse link for broadband DS-CDMA packet wireless access. Laboratory experimental results elucidate that path-independent weight generation is superior to path-common weight generation based on the implemented AAA-BF receiver in a multipath Rayleigh fading channel with up to eight paths. The required average received signal energy per bit-to-background noise power spectrum density ratio (E/sub b//N/sub 0/) using path-common antenna weight generation is increased according to the increase in the angle spread among paths, /spl sigma/, since the antenna gain toward the DOA of each path is reduced. Nevertheless, the increase in the antenna gain according to the number of antennas is achieved by using path-independent antenna weight generation regardless of the /spl sigma/ value up to 20 degrees. Furthermore, the field experimental results show that the required average received signal to interference plus background noise power ratio (SINR) at the average block error rate (BLER) of 10/sup -2/ employing path-independent weight generation is reduced by approximately 3.5 dB compared to that using path-common weight generation for a large r.m.s. angle spread such as 9 degrees. In the field experiments, the required average received SINR at the average BLER of 10/sup -2/ using the AAA-BF receiver with path-independent antenna weight generation is reduced by approximately 6.0 dB compared to that with one-antenna reception, regardless of the angle spread values.
Starting Page	1257
Ending Page	1262
File Size	558962
Page Count	6
File Format	PDF
ISBN	0780385233
DOI	10.1109/PIMRC.2004.1373899
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-09-05
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Adaptive arrays Broadband antennas Antenna arrays Timing Direction of arrival estimation Multiaccess communication Receiving antennas Signal to noise ratio Power generation Signal generators
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
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in