(A) local repair-based efficient multi-constrained routing protocol for wireless mesh networks = 무선 메쉬 네트워크를 위한 로컬 리페어 기반의 효율적인 다중 제약 라우팅 프로토콜

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Multi-constrained routing is a key driver to support quality-of-service (QoS) for real-time multimedia applications in wireless mesh networks (WMNs). Due to the difficulty of applying strict admission control into a public WMN, it is inevitable to accommodate multiple application flows with different QoS requirements exceeding the capacity of a certain link shared by multiple flows. However, existing multi-constrained routing protocols under such an environment find the QoS degradation based on end-to-end path quality probing and trigger flooding-based route discovery from a scratch for resolving the QoS degradation, which incurs a longer recovery time and much routing overhead. This dissertation proposes a novel multi-constrained routing protocol for WMNs that finds problematic links that may affect QoS degradation to end-to-end paths and replaces them with a detour path using a local repair principle. Novel congestion threshold estimation is modeled for finding problematic links and design algorithms for quickly finding detour paths and selecting an optimal path by minimizing the negative effect on existing flows nearby the detour path. Simulation results show that the proposed routing protocol achieves up to 19.6% more goodput of live video streaming applications with up to 33% reduced routing overhead compared with an existing work.
Advisors
Lee, Dongmanresearcher이동만researcher
Description
한국과학기술원 :전산학부,
Publisher
한국과학기술원
Issue Date
2019
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 전산학부, 2019.2,[iv, 87 p. :]

Keywords

wireless mesh network▼arouting▼aapplication-awareness▼amultiple constraints▼aroute maintenance; 무선 메쉬 통신망▼a라우팅▼a응용 인지▼a다중 제약▼a경로 복구

URI
http://hdl.handle.net/10203/265345
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=842410&flag=dissertation
Appears in Collection
CS-Theses_Ph.D.(박사논문)
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