IEICE Transactions on Information and Systems
Online ISSN : 1745-1361
Print ISSN : 0916-8532
Special Section on Frontiers of Internet of Things
On Finding Maximum Disjoint Paths for Many-to-One Routing in Wireless Multi-Hop Network
Bo LIUJunzhou LUOFeng SHANWei LIJiahui JINXiaojun SHEN
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2014 Volume E97.D Issue 10 Pages 2632-2640


Provisioning multiple paths can improve fault tolerance and transport capability of multi-routing in wireless networks. Disjoint paths can improve the diversity of paths and further reduce the risk of simultaneous link failure and network congestion. In this paper we first address a many-to-one disjoint-path problem (MOND) for multi-path routing in a multi-hop wireless network. The objective of this problem is to maximize the minimum number of disjoint paths of every source to the destination. We prove that it is NP-hard to obtain k disjoint paths for every source when k ≥ 3. To solve this problem efficiently, we propose a heuristic algorithm called TOMAN based on network flow theory. Experimental results demonstrate that it outperforms three related algorithms.

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© 2014 The Institute of Electronics, Information and Communication Engineers
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