Abstract
The main objective of third and future wireless mobile communication networks is to provide services efficiently to the mobile users in all environments. In wireless mobile Communication the channel allocation and quality of service are the major factors and important issues to decide the system performance. Here in our work a Hybrid Channel Allocation(HCA)strategy for channel allocation and queuing technique applied to Hybrid Channel Allocation strategy for Quality of Service(QoS) provisioning are implemented. The proposed HCA strategy considers new calls in Fixed Channel Allocation (FCA) method and handoff calls in Dynamic Channel Allocation (DCA) method to reduce the call blocking and call dropping probabilities. The application of queuing technique applied to HCA strategy increases the efficiency of the cellular system performance especially in micro and pico cellular environments and effectively utilize the available allocated radio spectrum. The performance shows the decrease in call blocking and dropping and an increased number of users in the available channels.
Highlights
The radio spectrum allocated to wireless cellular mobile communication system is fixed one
From the total available channels N, in our proposed Hybrid Channel Allocation (HCA) strategy the fixed to dynamic ratio of the channels are taken as 7: 3 for new and handoff calls
At the same time, queuing of new calls only resulting an increased call dropping probability on the handoff calls shown in figure 9
Summary
The radio spectrum allocated to wireless cellular mobile communication system is fixed one. The fundamental operational principle of wireless cellular mobile communication system (WCMCS) is the reuse of frequencies at different places within the areas of service. The carrier to interference ratio (CIR) and the radio spectrum reuse efficiency are improved. The channel allocation strategy is the technique used to make the most efficient and intelligent way of utilizing the available radio spectrum by the way in which channels are allocated to mobile multimedia calls. An efficient channel allocation strategy with QoS provisioning framework is applied to third and future generation wireless networks. The implementation of HCA with queuing will effectively increases the channel utilization and providing QoS
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