The Multi-path Utility Maximization and Multi-path TCP Design

Details The Multi-path Utility Maximization and Multi-path TCP Design The Multi-path Utility Maximization and Multi-path TCP Design

2011-08-19

arxiv.org/abs/1108.3944v2

Mathematics

Optimization and Control

22 pages, 6 figures

Scientific paper

The network utility maximization problem (NUM) for multi-path is a problem which is non-strictly convex and non-separable. Using Jensen's inequality, we approximate the NUM to a strictly convex and separable problem which can be solved efficiently by the dual decomposition method. After a series of approximations, the result of the approximation problem converges to the globally optimal solution of the original problem. Moreover, because of the separable and dual-based natures of the proposed algorithm, we utilize the reverse engineering frameworks of the current TCPs to develop a series of multi-path TCPs which are totally compatible with current TCPs. The multi-path users using our protocols can run simultaneously with the single-path users using the current TCPs. The simulations of our Multi-path Reno on ns-2 show the compatibility and the fairness among multi-path and single-path users.

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