Uplink Capacity Estimation and Enhancement in WCDMA Network

Full Text (PDF, 524KB), PP.21-30

Views: 0 Downloads: 0

Author(s)

Fadoua Thami Alami 1,* Noura Aknin 1 Ahmed El Moussaoui 1

1. Abdelmalek Essaadi University, Morocco

* Corresponding author.

DOI: https://doi.org/10.5815/ijitcs.2013.09.02

Received: 4 Oct. 2012 / Revised: 11 Feb. 2013 / Accepted: 23 Apr. 2013 / Published: 8 Aug. 2013

Index Terms

WCDMA, Uplink, Maximum Capacity, Multi-Service Network, Isolated Cell, Multiple Cells, Interferences, Blocking Probability

Abstract

Uplink planification in a WCDMA network consists of estimating the maximum capacity that a cell can support, by using the quality of service equation designed by (E_b)/(N_0). We are interested in this work on two different scenarios: an isolated cell and multiple cells. This capacity is adversely affected by interferences due to own mobile stations and to others belonging to neighboring cells. In order to enhance capacity and minimize the blocking probability of new requests in the cell, we have proposed a Freeing Resources algorithm which consists of releasing some mobile stations in the handover area with the overloaded cell. This algorithm is based on freeing 1, 2 and 3 mobile stations of 12.2 kbps and 1 mobile station of 64 kbps.

Cite This Paper

Fadoua Thami Alami, Noura Aknin, Ahmed El Moussaoui, "Uplink Capacity Estimation and Enhancement in WCDMA Network", International Journal of Information Technology and Computer Science(IJITCS), vol.5, no.9, pp.21-30, 2013. DOI:10.5815/ijitcs.2013.09.02

Reference

[1]Jordi Pérez-Romero, Oriol Sallent, Ramon Agusti, Radio Resource Management Strategies In UMTS, All of Universitat Polite`cnica de Catalunya (UPC), Spain, Miguel Angel Diaz-Guerra Telefonica Moviles Espana, S.A., Spain.

[2]Settapong Malisuwan et al., Uplink Capacity of mobile all-packet-service WCDMA Internet systems in emi environment, Proc. IEEE Int. Symp. Electromag. Compat, Japan, 2004. 

[3]José Outes Carnero, Uplink Capacity Enhancement in WCDMA, Multi Cell Admission Control, Synchronised Schemes and Fast Packet Scheduling, ISBN 87-90834-54-2, ISSN 0908-1224, R04-1011,Department of Communication Technology, Institute of Electronic Systems, Aalborg University, Niels Jernes,, March 2004.

[4]Thrasivoulos (Sakis) Griparis, Tristan Lee, The capacity of WCDMA network: With box study, Bechtel Telecommunications Technical Newspaper, vol. 3, No 1, august 2005.Texas Wireless Symposium 2005. 

[5]Zdeněk RŮŽIČKA, Stanislav HANUS, Admission Control And Load Control In UMTS Network, Institute of Radio Electronics, Brno University of Technology Purkyňova 118, 612 00 Brno, Czech Republic .

[6]Erik Geijer Lundin, Uplink Admission Control Based on Estimated Interference in WCDMA Systems, Master’s Thesis completed at Communication Systems,Linköpings Universitet, Sweden.

[7]Salman Al-Qahtani and Ashraf Mahmoud, Uplink Admission Control in WCDMA, International Symposium on Wireless Communications (ISWSN'05) 2005.

[8]Thamer Al-Meshhadany, The impact of Soft handoff on the Uplink capacity in WCDMA systems Thamer Al-Meshhadany, Computer Communications 29 (2006) 3804–3811.

[9]S. A. El-Dolil, A. Y. Al-nahari, M. I. Desouky and F. E. Abd El-samiem Uplink Power Based Admission Control In Multi-Cell WCDMA Network With Heterogeneous Traffic, Progress In Electromagnetics Research B, Vol. 1, 115–134, 2008, Department of Electronics and Electrical Communications Faculty of Electronic Engineering Menoufia University Menouf, Egypt.

[10]Rachod Patachaianand, Kumbesan Sandrasegaran, Simulation of Call Admission Control in Multi-Traffics WCDMA System, Institute of Information and Communication Technologies and Faculty of Engineering, University of Technology Sydney (UTS).

[11]Abdullah Al Muzahid, Ahmed Khurshid, Md. Mostofa Ali Patwary, Md. Mostofa Akbar, Reservation Based Adaptive Uplink Admission control for WCDMA, Department of CS.