The Distributed Dynamic Channel Assignment and Call Admission Control for Cellular Network

  • Lin, Shin-Yeu (PI)

Project: National Science and Technology CouncilNational Science and Technology Council Academic Grants

Project Details

Abstract

In this project, we propose a combining distributed dynamic channel assignment method with the adaptive call admission control for cellular network to decrease the new call blocking probability and handoff call dropping probability and extend to the application of multimedia communication. There are three parts in this project. The first part deals with the channel assignment problem of cellular network by proposing a Petri net based distributed dynamic channel assignment method to overcome the overload problem caused by the motion switching center and decrease the new call blocking probability. The second part will combine the distributed dynamic channel assignment with the call admission control to maintain the quality of service (QoS) of the cellular network. The third part will extend the results of the second part to the multimedia communication for cellular network. The keys for the validity of a distributed dynamic channel assignment are (i) how to handle the co-channel interference,(ii) how to assign channel properly with limited information, and (iii) how to perform channel reassignment. The purpose of call admission control is to ensure the QoS of the cellular network, for example how to decrease the new call blocking probability while maintaining the handoff call dropping probability under certain predetermined level. The key for achieving this is the number of available channels for assignment. The proposed method is designed based on this key. The work of our three-year project can be outlined as follows: First year: A Petri Net Based Distributed Dynamic Channel Assignment for Cellular Network. (i) Proposing a Petri-net model for distributed dynamic channel assignment. (ii) Proposing a Petri-net based channel assignment and channel reassignment method. (iii) Prove the adequacy of the proposed Petri net. (iv) Prove the proposed Petri-net satisfying the co-cahnnel interference constraint. (v) Perform simulations and compare with the existing methods. Second year: The Call Admission Control for Cellular Network (i) Proposing a combining distributed dynamic channel assignment and adaptive call admission control strategy. (ii) Proposing the adaptive call admission control methods. (iii) Perform simulations and analyze the performance of various call admission control methods. (iv) Propose the most suitable adaptive call admission control method to combine with the distributed dynamic channel assignment method. Third year: The Call Admission Control for the Integration of Voice and Data Cellular Network. (i) Proposing the combining distributed dynamic channel assignment and adaptive call admission control strategy for the multimedia cellular network. (ii) Proposing the adaptive call admission control methods for multimedia cellular network. (iii) Perform simulations and analyze the performance of various call admission control methods. (iv) Propose the most suitable adaptive call admission control method to combine with the distributed dynamic channel assignment method for multimedia cellular network.

Project IDs

Project ID:PB9808-0496
External Project ID:NSC98-2221-E182-065-MY2
StatusFinished
Effective start/end date01/08/0931/07/10

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