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Dual Mode Packet Transmission Scheme using a Dynamic Switching Threshold in the IMT-2000  

김장욱 (동양공업전문대학)
반태원 (KTF 네트웍연구소)
오창헌 (한국기술교육대학교 정보기술공학부)
조성준 (한국항공대학교 전자정보통신 컴퓨터공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.7, no.5, 2003 , pp. 907-915 More about this Journal
Abstract
A very efficient packet transmission scheme is needed in the radio environment where radio resource is insufficient as compared with the environment of the wired communication. In general, dual mode packet transmission scheme is used broadly. Packets are transmitted through the dedicated or common chamois according to a switching criterion. The general criteria are the length and generation frequency of packet, that is, large and frequent packets are transmitted using a dedicated channel and small and infrequent packets are transmitted using a common channel. The performance of dual mode packet transmission scheme is closely related to the switching criteria. However, it is very difficult to find the optimal switching point because that is not fixed but variable according to the environment such as traffic load, length of generated packets, and the number of channels. In this paper, a new scheme for the dual mode packet transmission scheme using a dynamic switching threshold is proposed where the switching threshold is not fixed but variable according to the network environment. The performance of the proposed method is analyzed using a simulation. From the simulation results, it is shown that the performance of the proposed scheme is not very influenced by the network environment unlike the conventional dual mode packet transmission scheme.
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