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The design and performance evaluation of high-speed packet data MAC protocol for CDMA based IMT2000

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6 Author(s)
Sungwon Lee ; IMT 2000 Syst. Dev. Group, Samsung Electron. Inc., South Korea ; Young-Jae Song ; Dong-Ho Cho ; Hyunsuk Lee
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We propose and evaluate the performance of CDMA (code division multiple access) based high-speed packet data service MAC (medium access control) protocol for IMT2000 system. This proposed MAC supports a smooth evolution from the conventional IS-95 based system to IMT2000. Also, the proposed MAC supports connectionless packet transmission over wireless channels. Channel utilization is maximized by using discontinuous transmission mode technology and efficient channel re-use property. Most of all, a 5 ms-size message structure based control mechanism provides a fast MAC management scheme. Then a sleep-mode based physical channel control function is provided to support the power save effect and fast channel activation method. Also, channel related information is minimized by using the state transition characteristics of the proposed MAC. Especially, the proposed MAC is admitted by TR45.5 as a part of the cdmaOne standard, and proposed to ITU-R as a CDMA based IMT2000 radio transmission technology candidate.

Published in:

Global Telecommunications Conference, 1999. GLOBECOM '99  (Volume:5 )

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