A Hybrid Resource Allocation Strategy with Queuing in Wireless Mobile Communication Networks

Computer and Information Science 07/2009; DOI: 10.5539/cis.v2n3p3
Source: DOAJ


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.

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Available from: Prof P Balasubramanie, Jan 04, 2014
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    • "[8] Proposed a new traffic model with three different queues at each transceiver (TRX) per cell and compared their model with the model given by Hong and Rappaport [3] and found that the blocking probabilities of new model are less than existing one. [9] gave the priority to handover calls over new call attempts and blocked handover call are placed in a finite storage queue and evaluated the total handover forced termination probability.[10] Proposed four schemes: SFTT (Single- Queue, FIFO, Timeout, Average Timeout) scheme, SPTT (Single-Queue, Priority, Timeout, Average Timeout) scheme, DFTS (Dual-Queues, FIFO, Timeout, Statistical TDM) scheme, DPTS (Dual Queues, Priority, Timeout, Statistical TDM) scheme to reduce call completion rates and compared these schemes with NPS and FIFS. "
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    ABSTRACT: In wireless mobile communication the channel allocation and quality of service are the major factors and important issues to decide the system performance. Call dropping and handoff is a key element in wireless cellular networks in order to provide Quality of Service (QOS) to the users and to support user's mobility. From the user's point of view, the service of a handoff request is more important as the forced termination of an ongoing call is more annoying than the blocking of new calls. Therefore, in order to support QOS to the users we present two models, we give the priority to handoff calls with reserving some channels in model I and sub rating existing calls for new voice calls in model II. Then we calculate the blocking probability of new calls and dropping probabilities of handoff calls.
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