Hicham Lakhlef, Michel Raynal, and François Taïani

Vertex Coloring with Communication Constraints in Synchronous Broadcast Networks

IEEE Transactions on Parallel and Distributed Systems, , volume , issue , pp. 1-14, 2018 (14p.)

This paper considers distributed vertex-coloring in broadcast/receive networks suffering from conflicts and collisions. (A collision occurs when, during the same round, messages are sent to the same process by too many neighbors; a conflict occurs when a process and one of its neighbors broadcast during the same round.) More specifically, the paper focuses on multi-channel networks, in which a process may either broadcast a message to its neighbors or receive a message from at most gamma of them. The paper first provides a new upper bound on the corresponding graph coloring problem (known as frugal coloring) in general graphs, proposes an exact bound for the problem in trees, and presents a deterministic, parallel, color-optimal, collision- and conflict-free distributed coloring algorithm for trees, and proves its correctness.

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doi: http://doi.org/10.1109/TPDS.2018.2889688 (publisher's link)


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