| Project/Area Number |
23700086
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Computer system/Network
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| Research Institution | Kyushu Institute of Technology |
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Principal Investigator |
TSUKAMOTO Kazuya 九州工業大学, 大学院・情報工学研究院, 助教 (20452823)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2011: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | ダイナミックスペクトルアクセス(DSA) / トランスポートプロトコル / クロスレイヤ / ネットワーク協調型 / ダイナミックスペクトルアクセス（ＤＳＡ） |
|---|
| Research Abstract |
In cognitive radio mobile ad hoc networks (CogMANET), channel switching is inherently necessary whenever a primary user with a license appears on the channel. In such cases, the communication characteristics also change in terms of bottleneck bandwidth and RTT. In response to this change, TCP has to adaptively update its congestion window size (cwnd) to make an efficient use of the available wireless resources. Hence, we propose the new TCP, TCP CoBA, which updates the cwnd based upon the available buffer space in the relay node as well as the bandwidth-delay product (BDP). Through simulations, we showed the effectiveness of TCP CoBA.
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