Flow Control in Wireless Networks

Опубликовано 6 сентября 2016, 6:28

Flow control, including congestion control for data and rate control for multimedia, is an important issue for information transmission in wireless networks. In this talk, we proposed a solution for flow control in wireless networks. It can be modeled as a nonlinear singularly perturbed system and interpreted as dynamically adjusting both flow rates and number of connections of users. This modeling enable us to solve the problem without changing today's network infrastructure or transport protocol, which different the work from all existing approaches. We explore the uniqueness of equilibrium rate and its exponential stability, implying the optimality and scalability of the solution. The analysis also indicates the feasibility of incremental deployment and applicability to wired networks. Further, it turns out the work also implies a two timescale framework for other flow control problem without touching underlying infrastructure or protocols. Following the insights, we design practical end-to-end schemes addressing flow control in wireless problem in practice. Their performances are evaluated and characterized using both NS-2 simulations and actual experiments over Verizon Wireless 1xRTT commercial data network. This work results in a US patent.