Scheduled System Maintenance:
On May 6th, single article purchases and IEEE account management will be unavailable from 8:00 AM - 5:00 PM ET (12:00 - 21:00 UTC). We apologize for the inconvenience.
By Topic

Optimal decision strategies for acquisition of spread spectrum signals in frequency selective fading channels

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)
Rick, R.R. ; Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA ; Milstein, L.B.

The focus of this paper is on the initial acquisition of a direct sequence spread spectrum signal utilizing a purely parallel search strategy. A purely parallel search strategy is utilized because it reduces the acquisition time compared to either serial or partially parallel strategies. In particular, the purpose of this paper is to derive the optimal decision rule, based on the maximum-likelihood criterion, for coarse acquisition of direct sequence waveforms transmitted over frequency selective fading channels. The performance of the conventional decision rule, optimized for additive white Gaussian noise and flat fading channels, and the optimal decision rule, derived in this paper, are compared. It is shown that the performance improvement increases as the number of resolvable paths increases. Furthermore, it is shown that the optimal decision rule for Rayleigh fading channels, and a decision rule which yields approximately optimal performance for Rician fading channels, are easily implemented

Published in:

Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on  (Volume:1 )

Date of Conference:

22-25 Sep 1996