A MAC scheme with double-side scheduling for ATM-based PON

被引:0
|
作者
Lee, H [1 ]
Lee, D
Oh, C
机构
[1] Kwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju, South Korea
[2] Res Inst Secubay Co, Taejon, South Korea
关键词
APON; MAC; CDV control;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This paper proposes a new MAC scheme for ATM based Passive Optical Network (APON) a which follows the ITU-T recommendation G.983.1. MAC schemes for APON mostly adopt single-side scheduling in which only OLT (Optical Line Termination) schedules upstream access order for ONUs (Optical Network Units) that inform cell arrival information to OLT. In this paper, we propose a MAC scheme called double-side scheduling protocol (DSP) in which both OLT and ONU participate in scheduling process. Through the computer simulation we find out that the CDV (cell delay variation) performance of the real-time service can be improved remarkably using fewer overhead slots than that of the MAC schemes adopting CDV control algorithm. For the proposed MAC scheme, we present grant field format, minislot format, divided slot format, and scheduling algorithm.
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页码:1690 / 1693
页数:4
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