| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
In TDMA-based wireless networks, graph coloring-based link scheduling is often used to assign time slots to links. In the graph coloring-based link scheduling, an interference estimation method is required to make a conflict graph from a wireless network topology. Among interference estimation methods, the protocol method has been widely used until now. In this research, we comparatively evaluate the effect of interference estimation methods on the performance of wireless relay networks, where the network topology is a tree. Through simulation experiments, we show that the accuracy of interference estimation with a receiver-based interference estimation method (our proposal) is higher compared to that with the protocol method. In addition, we show that the network performance is improved by up to 16% by using the receiver-based method compared to the protocol method.
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