Authors: Deepak C. Karia; B.K. Lande; R.D. Daruwala
Addresses: Department of Electronics and Telecommunication, Sardar Patel Institute of Technology, University of Mumbai, Mumbai 400058, India. ' Department of Electronics, Shah and Anchor Kutchhi Engineering College, University of Mumbai, Mumbai 400088, India. ' Department of Electronics, Veermata Jijabai Technological Institute, University of Mumbai, Mumbai 400019, India
Abstract: QoS in cellular networks depends on various parameters, where Carrier-to-Interference Ratio (CIR) is one of the fundamental parameters amongst the others. This in turn depends on power transmitted by the Base Stations (BS) and interference which actually is the power radiated out by the unwanted sources, making optimum allocation of power the foremost important design metric. In this paper, we propose a novel approach for which various distributed power control algorithms are studied extensively. To validate the proposed models, the central focus of the paper is to maintain the CIR close to the threshold value, which is predefined. The models consider shadowing and also interference to modulate the transmitted power, which tunes according to the dominating environmental conditions and are independent from the point of view of specifying the upper and lower bounds of the transmitted power in order to maintain the achieved optimum power in a feasible domain.
Keywords: QoS; quality of service; CIR; carrier-to-interference ratio; distributed power control; shadowing; interference; cellular networks.
International Journal of Wireless and Mobile Computing, 2012 Vol.5 No.2, pp.161 - 167
Received: 05 Sep 2011
Accepted: 08 Nov 2011
Published online: 07 May 2012 *