Enhancing Video Multicasting in Wireless Mesh Networks
Explore how multicasting of video content over wireless mesh networks presents challenges and learn about a two-tier integrated architecture for efficient data routing. Discover the benefits and complexities of wireless mesh networks in providing connectivity over urban areas.
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Presentation Transcript
Resource Resource- -Aware Video Aware Video Multicasting via Access Gateways Multicasting via Access Gateways in Wireless Mesh Networks in Wireless Mesh Networks IEEE Transactions on Mobile Computing,Volume 11,Number 6,June 2012 Authors : Wanqing Tu Sch. of Comput. & Commun. Technol., Glyndwr Univ., Wrexham, UK IEEE Member Sreenan, C.J. ; Chun Tung Chou ; Misra, A. ; Jha, S.K. 1
Outline Outline Introduction Wireless Mesh Networks Problem Two-tier integrated architecture Link-controlled routing tree Conclusion 2
Introduction Introduction Video streaming represents one of the fastest growing segments of traffic in the Internet today. Multicasting of video over wireless networks is a challenging problem, due to the combination of high data rates (relative to wireless capacity) and low-latency constraints and the need to support multiple receivers with time-varying link quality. 3
Wireless Wireless Mesh Networks Mesh Networks Wireless mesh networks (WMNs) offer an attractive solution for low- cost connectivity over large urban areas. A WMN consists of a set of mesh nodes offering connectivity to end user devices; the mesh nodes form a relatively static, multi-hop wireless backbone. 4
Problem Problem 5
Problem Problem 6
Two Two- -tier integrated architecture tier integrated architecture 7
Two Two- -tier integrated architecture tier integrated architecture 8
Two Two- -tier integrated architecture tier integrated architecture Uploading Gateway 9
Two Two- -tier integrated architecture tier integrated architecture 10
Link Link- -controlled routing controlled routing tree tree 11
Conclusion Conclusion The paper described and studied a resource-aware multi gateway video multicasting framework for WMNs that reduces the negative impacts of multiple wireless hops by judiciously employing high- capacity wired Internet shortcuts. The two-tier integrated architecture algorithm chooses communication paths intramesh paths or integrated paths between nodes by organizing them into a clustered and layered architecture. 12
Conclusion Conclusion Link-controlled routing tree algorithm decreases interference from parallel multicasting by constructing a multicast tree with the least number of forwarders in each access area 13
