By Topic

Blind spreading sequence discovery for DS-CDMA signal interception

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Haghighat, A. ; Dept. of Comput. & Electr. Eng., Concordia Univ., Montreal, Que., Canada ; Soleymani, M.R.

A scheme based on multiple signal classification (MUSIC) algorithm for blind discovery of spreading sequences of active users in a synchronous multiuser code division multiplex access (CDMA) is suggested. The scheme is blind in the sense that does not require prior knowledge of the spreading codes. Spreading codes and users power are acquired by the scheme. Eigenvalue decomposition (EVD) is performed on the received signal, and then all the valid possible signature sequences are projected onto the subspaces. However as a result of this process, some false answers are also produced and the ambiguity seems un-resolvable. Our approach is to apply a transformation derived from the results of the subspace decomposition on the received signal and then to inspect their statistics. It is shown the second order statistics of the transformed signal provides a reliable means for removing the false answers.

Published in:

Military Communications Conference, 2003. MILCOM '03. 2003 IEEE  (Volume:2 )

Date of Conference:

13-16 Oct. 2003