| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Encoding data at all nodes in a network can maximize data transmission efficiency. Encoding consumes processing power of routers, however. In this research, we investigated the placement of encoding nodes in a part of network nodes and data transmission strategies in such a network while achieving the comparable data transmission efficiency to the one in encoding at every node. We first identified that the reason of data-transfer efficiency improvement resides in the redundancy which help us to avoid duplicated data transmission. We also proposed a encoding-node placement algorithms exploiting indices that expresses features of network topologies and succeeded in improving data transmission efficiency effectively.
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