Improving Handover Process In WCDMA System Using Umbrella Cell Technique | ||
| Albahir journal | ||
| Article 1, Volume 3, Issue 5, December 2016, Pages 35-47 | ||
| Author | ||
| Lujain S. Abdulla | ||
| Abstract | ||
| ABSTRACT The capacity is an important requirement in the development of cellular systems. There are many methods to increase cellular system capacity such as using small cells (micro cell) in hotspot areas. This method increases the number of handovers for high speed users, which causes an increasing of the number of blocked handovers. It is possible to decrease the number of handovers by using umbrella cell technique. This technique uses large cell (macro cell) to serve high speed users and small cells to serve low speed users. In this paper, two models are simulated by using MATLAB program, with and without umbrella cell in Wide band Code Division Multiple Access (WCDMA) system. The results of this work show an improvement of the handover process by large reduction of the number of handovers, and decreasing the probability of blocked handovers in the case of umbrella cell technique compared to the other technique. | ||
| Keywords | ||
| Macro Cell; Micro Cell; Soft Handover; Umbrella Cell; WCDMA | ||
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