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A Novel Approach to Cell Coverage Area Determination for FDMA–CDMA Systems

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Abstract

There is no theoretical time or frequency restrictions on capacity in DS-CDMA systems. In these systems, the signal to interference ratio (SIR) has a major effect on capacity. Since an increase in the user SIR at the base station (BS) leads to higher capacity, transmission power control is employed. The nonuniform distribution of users in the network causes different quality of service (QOS) in distinct regions, therefore network resources may not be utilized properly. A dynamic distribution algorithm can be employed to balance the QOS delivered in different regions of the network. In this paper, a novel dynamic distribution algorithm is introduced. The proposed algorithm deactivates certain users when the network encounters an overload. By applying this policy, the required SIR can be maintained for the remaining users.

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Authors and Affiliations

  1. Department of Electrical & Computer Engineering, Isfahan University of Technology, Iran

    F. Hendessi, Kh. Ghassemi & A. Ghayoori

  2. Department of Electrical & Computer Engineering, University of Victoria, Victoria, BC, Canada

    T. A. Gulliver

Authors
  1. F. Hendessi
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  2. Kh. Ghassemi
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  3. A. Ghayoori
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  4. T. A. Gulliver
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Corresponding author

Correspondence to T. A. Gulliver.

Additional information

F. Hendessi received a B.Sc. degree from Baluchestan University, Iran in 1986, and an M.Sc. degree from Isfahan University of Technology, Iran in 1988, both in Electrical Engineering. In 1993 he received a Ph.D. in Electrical Engineering from Carleton University, Ottawa, Ontario, Canada. He is currently an Assistant Professor in the Department of Electrical Engineering at Isfahan University of Technology.

A. Ghayoori received B.Sc. and M.Sc. degrees in Electrical Engineering from Isfahan University of Technology, Isfahan, Iran, in 2001 and 2003, respectively. He is currently a Research Engineer with the ICT research center at IUT.

T. A. Gulliver received a Ph.D. degree in Electrical and Computer Engineering from the University of Victoria, Victoria, BC, Canada in 1989. From 1989 to 1991 he was employed as a Defence Scientist at Defence Research Establishment Ottawa, Ottawa, ON, Canada. He has held academic positions at Carleton University, Ottawa, and the University of Canterbury, Christchurch, New Zealand. He joined the University of Victoria in 1999 and is a Professor in the Department of Electrical and Computer Engineering.

He is a Senior Member of the IEEE and a member of the Association of Professional Engineers of Ontario, Canada. In 2002, he became a Fellow of the Engineering Institute of Canada. His research interests include information theory and communication theory, algebraic coding theory, cryptography, construction of optimal codes, turbo codes, spread spectrum communications, space-time coding and ultra wideband communications.

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Hendessi, F., Ghassemi, K., Ghayoori, A. et al. A Novel Approach to Cell Coverage Area Determination for FDMA–CDMA Systems. Wireless Pers Commun 34, 411–439 (2005). https://doi.org/10.1007/s11277-005-6496-0

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