• Title/Summary/Keyword: Time Division Multiplexting (TDM)

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A Design of MAC Protocol for Dynamic WDM Channel and Bandwidth Allocation in TDM-PON (TDM-PON에서 동적 WDM 채널 및 대역폭 할당을 위한 MAC 프로토콜 설계 연구)

  • Lee Sung-Kuen;Kim Eal-Lae;Lee Yong-Won;Lee Sang-Rok;Jung Dae-Kwang;Hwang Seong-Taek;Oh Yun-Je;Park Jin-Woo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.9B
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    • pp.777-784
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    • 2006
  • In this paper, we propose the PON-based access network based on conventional TDM-PON architecture, which utilizes WDM wavelength channel and bandwidth dynamically. It is also described a dynamic MAC protocol in order to increase the number of subscribers and efficiency of resource utilization. Of particular importance in the proposed approach for MAC protocol is that the wavelength channel and time slot for up/downlink is dynamically allocated according to the required QoS level and the amount of data in data transmission, through the dedicated control channel between OLT and ONU. We evaluate the performance of average packet end-to-end delay in a statistical analysis and numerical analysis. In addition, through simulations with various traffic models, we verified the superior performance of the proposed approach by comparing with the results of other E-PONs.