DYNAMIC CHANNEL RESERVATION SCHEME FOR HANDOFF PRIORITIZATION IN WIRELESS CELLULAR NETWORKS | ||
| JES. Journal of Engineering Sciences | ||
| Article 3, Volume 34, No 1, January and February 2006, Pages 37-45 PDF (168.28 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.21608/jesaun.2006.109906 | ||
| Author | ||
| Mohammad M. Zahra* | ||
| Electrical Engineering Department, Faculty of Engineering, AL-AZHAR University, Cairo, Egypt | ||
| Abstract | ||
| In wireless cellular networks, in order to ensure that ongoing calls are not dropped while the users roam among cells, handoff calls may be admitted with a higher priority as compared to new calls. One way to improve system performance of cellular networks is to use efficient handover schemes when users move between cells. In this paper, a new dynamic scheme, called Dynamic Channel Reservation (DCR) is proposed and evaluated to improve the utilization of wireless network resources. The required GoS of handoff calls are guaranteed. Simulation results show that the proposed scheme improves handoff calls blocking probability in expense of an acceptable blocking probability of new calls. | ||
| Keywords | ||
| cellular networks; handoff; dynamic channel reservation | ||
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