By Topic

Investigating the effects of imperfect digital beamforming on cell capacity in a cellular CDMA communication system

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)
Earnshaw, A.M. ; Dept. of Electr. & Comput. Eng., Queen''s Univ., Kingston, Ont., Canada ; Blostein, S.D.

Cell capacity in a CDMA communication system can be increased through the use of base station antenna arrays and digital beamforming. It is necessary to estimate suitable beamforming weights from the received signal data which contains interference and noise. This imperfect beamforming produces corrupted weight values which affect the performance of the system. Due to the data coding methods used in IS-95, it is necessary to utilise an enhanced beamforming weight estimation technique which we present here. This permits significantly more accurate estimates of the beamforming coefficients to be made. A simplified method for cell capacity estimation based on the power control information is also included. Sample simulation results indicate that approximately a 50% increase in capacity is obtained when beamforming with two antenna elements is used instead of one element. Results obtained from the proposed imperfect beamforming and the power control capacity estimation technique agree with those obtained for the situation where perfect beamforming weights are need

Published in:

Universal Personal Communications, 1996. Record., 1996 5th IEEE International Conference on  (Volume:1 )

Date of Conference:

29 Sep-2 Oct 1996