Research Article

A New TDMA Scheduling Algorithm for Data Collection over Tree-Based Routing in Wireless Sensor Networks

Figure 9

Comparison of the delay of congestion-based, node-based, and level-based scheduling algorithms versus 𝑟 𝑚 / 𝑟 𝑠 for 𝜆 1 / 𝜆 2 = 1 / 9 .
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