Performance analysis of prioritized and non prioritized handoff call queuing schemes in mobile cellular networks

Abstract

Handoff (HO) call queuing can be successfully employed to ensure better Quality of Service (QoS) guarantees in mobile cellular networks. In this paper, we present the performance analysis of prioritized and non prioritized HO call queuing schemes in terms of blocking and dropping probabilities, channel utilization and average waiting time for HO calls in queue with heterogeneous offered traffic. Our results signify the superiority of proposed Handoff Urgency Based (HUB) queuing scheme over First-In-First-Out (FIFO) queuing as it prioritizes HO calls according to user mobility (i.e. fast or slow) and call type (i.e. voice or data calls). It is evident that HUB achieves significantly lower dropping probability and queue waiting times with better channel utilization even under high traffic conditions.