研究目的
Analyzing the power consumption of ring topologies (both unidirectional and bidirectional) with Time and Wavelength Division Multiplexed Passive Optical Network (TWDM PON) and reducing power consumption through fixed and Load Adaptive Sequence Arrangement (LASA) polling scheduling algorithms.
研究成果
The analyzed ring topologies with scheduling algorithms namely fixed and LASA shown better power conservation. It has been observed that the fixed polling sequence would be polling sequence, due to constraints on wakeup time considered, if the cycle time is greater than 2 ms. However, LASA has resulted in better power conservation for the cycle time between 1 ms and 3 ms due to its mechanism. The average power consumption of different ONUs at different time slots has been computed and utilized for average power consumption required for data communication per ONU including other elements power consumption in the topology.
研究不足
The study is limited to static TDMA conditions and does not account for dynamic conditions where traffic variations at the ONUs are unpredictable in advance.
1：Experimental Design and Method Selection:
The study involves simulating TWDM PON with unidirectional and bidirectional ring topologies using MATLAB software. The methodology includes analyzing the power consumption with fixed and LASA polling sequences.
2：Sample Selection and Data Sources:
The simulation considers parameters such as normalized network load, wakeup time, fixed polling cycle time variation, splitting ratio, number of RN's, OLT power consumption per board, RN power consumption per board, ONU active power consumption, ONU sleep power consumption, and upstream line rate of wavelength.
3：List of Experimental Equipment and Materials:
MATLAB software for simulation.
4：Experimental Procedures and Operational Workflow:
The simulation involves varying the cycle time and analyzing the power consumption patterns for different network loads and polling sequences.
5：Data Analysis Methods:
The analysis includes comparing the power consumption of different methods at various network loads and identifying the reduction in power consumption achieved through fixed and LASA polling sequences.
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