Author: Wong, Sze-pong Wilson
Title: Distributed power balancing in a CDMA network
Degree: M.Sc.
Year: 1998
Subject: Code division multiple access
Mobile communication systems
Cellular telephones
Hong Kong Polytechnic University -- Dissertations
Department: Multi-disciplinary Studies
Department of Electronic Engineering
Pages: iii, 131 leaves : ill. ; 31 cm
Language: English
Abstract: Frequency reuse increases the capacity of a cellular system but results in co-channel interference. Several power control schemes to optimize the transmitter power in a TDMA system has been investigated in [1], [2], [3]. However, the convergence speed to obtain the optimum value is too slow to be acceptable in a real cellular system. A new algorithm, that improves the convergence speed is developed. Furthermore, the developed algorithm removes the problem of high transmit power in the iteration formula found in [2]. The developed algorithm has been applied to both single and multi-cell CDMA system. A large number of simulation results are reported in this dissertation. It is shown that an error of less than 1 dB to the optimum C/I value is usually obtained. The performance of this algorithm in the presence of fading is evaluated. The dynamic system behaviour when a new user enters the system as well as when an existing user leaves the system is also studied. It is found that the convergence to an optimum C/I value is slower when a new user enter the system.
Rights: All rights reserved
Access: restricted access

Files in This Item:
File Description SizeFormat 
b14418885.pdfFor All Users (off-campus access for PolyU Staff & Students only)3.25 MBAdobe PDFView/Open


Copyright Undertaking

As a bona fide Library user, I declare that:

  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.

By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.

Show full item record

Please use this identifier to cite or link to this item: https://theses.lib.polyu.edu.hk/handle/200/2965