研究目的
To minimize energy consumption and maximize network lifetime for data relay in one-dimensional (1-D) queue network by designing an Energy Saving via Opportunistic Routing (ENS_OR) algorithm.
研究成果
The ENS_OR algorithm significantly improves the network performance on energy saving and wireless connectivity compared with other existing WSN routing schemes. It ensures minimum power cost during data relay and protects the nodes with relatively low residual energy, thereby prolonging the network lifetime.
研究不足
The study focuses on relatively dense 1-D queue networks and does not consider the interference among the generated signals of each node. The sleep mode on ZigBee nodes is turned off, and factors like temperature and aging of the battery are not considered.
1：Experimental Design and Method Selection:
The ENS_OR algorithm is designed based on opportunistic routing theory to optimize network energy efficiency by considering the differences among sensor nodes in terms of their distance to the sink and residual energy.
2：Sample Selection and Data Sources:
Simulation experiments are conducted using MATLAB with 100 nodes uniformly and independently distributed over a line. Real testbed experiments are also conducted using ZigBee nodes deployed along a road in a 1-D queue network.
3：List of Experimental Equipment and Materials:
ZigBee nodes (CC2530) are used for real testbed experiments.
4：Experimental Procedures and Operational Workflow:
The ENS_OR algorithm is compared with GeRaF and MTE routing algorithms in both simulation and real testbed environments to evaluate its performance in terms of energy efficiency and network lifetime.
5：Data Analysis Methods:
Performance metrics such as average residual energy, standard deviation of residual energy, receiving packets ratio, first dead node, and network lifetime are used to evaluate the effectiveness of the ENS_OR algorithm.
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