By Topic

Coverage planning in 3G multimedia networks based on Walsh coding

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
$33 $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

3 Author(s)
Omar Alani ; School of Computing, Science & Engineering, University of Salford-UK ; Omar Daoud ; Ibrahim Abu-Isbeih

Capacity in Wideband Code Multiple Access (WCDMA) systems is interference limited, it is also strongly linked with coverage. The greater the level of influx of users within the cell, the higher the interference and hence the lower the cell coverage becomes and vice versa. This is called Cell Breathing. In this paper a Walsh coding is used as a precoding stage to the Multiple-Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system. The results of this work are compared with a conventional work that is based on convolutional coding. This is in order to check its fitness to the current system structure and the enhancement of the Eb/No, which will directly result in a better cell coverage and continued reliable services for the area of the cell as the load increases. Based on the simulation results, Walsh coding shows a slight improvement of complemetary cumulative distribution function (CCDF). As a consiquence, the MIMO-OFDM systems' performance is improved comparing with the covolutionally coded MIMO-OFDM system. Thus, not only the Peak-to-Average Power Ratio (PAPR) is saved, but also the frequency spectrum efficiency is improved.

Published in:

Systems Signals and Devices (SSD), 2010 7th International Multi-Conference on

Date of Conference:

27-30 June 2010