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Reseach Article

Path Loss Prediction in WCDMA Systems using OVSF Codes

Published on October 2013 by P. Kavipriya, C. Gomathy
National Conference on Recent Trends in Computer Applications
Foundation of Computer Science USA
NCRTCA - Number 1
October 2013
Authors: P. Kavipriya, C. Gomathy
817f4d48-2d37-4af8-a811-9856c4544515

P. Kavipriya, C. Gomathy . Path Loss Prediction in WCDMA Systems using OVSF Codes. National Conference on Recent Trends in Computer Applications. NCRTCA, 1 (October 2013), 37-42.

@article{
author = { P. Kavipriya, C. Gomathy },
title = { Path Loss Prediction in WCDMA Systems using OVSF Codes },
journal = { National Conference on Recent Trends in Computer Applications },
issue_date = { October 2013 },
volume = { NCRTCA },
number = { 1 },
month = { October },
year = { 2013 },
issn = 0975-8887,
pages = { 37-42 },
numpages = 6,
url = { /proceedings/ncrtca/number1/13639-1312/ },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Proceeding Article
%1 National Conference on Recent Trends in Computer Applications
%A P. Kavipriya
%A C. Gomathy
%T Path Loss Prediction in WCDMA Systems using OVSF Codes
%J National Conference on Recent Trends in Computer Applications
%@ 0975-8887
%V NCRTCA
%N 1
%P 37-42
%D 2013
%I International Journal of Computer Applications
Abstract

Orthogonal Variable Spreading Factor (OVSF) channelization codes limit the performance of third generation(3G) mobile communication systems employing Wideband Code Division Multiple Access(WCDMA). Internal fragmentation occurs when allocated data rate is larger than what is requested while external fragmentation occurs when the OVSF code tree is too fragmented to support a call even if there are sufficient capacity remaining in the code tree. We propose single-code time-shared strategies that consider channel conditions while solving these fragmentation problems. Simulation results are discussed to show the benefits of the proposed scheme. Simulation results verify that our strategies do use the precious wireless bandwidth efficiently.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Wcdma Ovsf Code code Assignment Code Blocking Path Loss .