NUM-Based Rate Allocation for Streaming Traffic Via Sequential Convex Programming
In recent years, there has been an increasing demand for ubiquitous streaming like applications in data networks. In this paper, the authors concentrate on NUM-based rate allocation for streaming applications with the so-called S-curve utility functions. Due to non-concavity of such utility functions, the underlying NUM problem would be non-convex for which dual methods might become quite useless. To tackle the non-convex problem, using elementary techniques they make the utility of the network concave, however this results in reverse-convex constraints which make the problem non-convex.