| Project/Area Number |
24500096
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Computer system/Network
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| Research Institution | Shibaura Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 無線メッシュ網 / layer2 ルーティング / VLAN / マルチキャスト / クロスレイヤ / モバイルマルチキャスト / PIM-SM / IGMP snooping / 媒介中心性 / 無線メッシュ / レイヤ２マルチキャスト / IGMPスヌーピング / 移動端末 |
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| Outline of Final Research Achievements |
Services to provide live streaming video from mobile sources are becoming widespread, including Ustream. It is expected that this type of services will be deployed in local community networks using wireless mesh networks. For these services, multicast routing supporting mobile sources is the key issue to be addressed. In this paper, we propose a low-cost multicast routing architecture named Hi-mobilecast, where the target network is divided into multiple IP subnets, in each of which an only pre-determined single AP has the layer 3 multicast router function and the rest of APs have layer 2 multicast function for intra-subnet communication. Performance evaluation shows Hi-mobilecast achieves almost the same performance as existing PIM-SM in terms of end-to-end hop length from the source to terminals along the multicast tree as well as maximum achievable video data rate while reducing the total number of APs which have the layer 3 multicast functions compared to PIM-SM.
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