Details of Research Outputs

In order to provide accurate and real-time bandwidth information and enhance the QoS service for bandwidth-sensitive applications in the dynamic changing wireless network, this paper proposes an efficient method for Wireless Bandwidth Detection (WBD) using packet probing approach on mobile nodes. The novelty and contributions of WBD are three-fold:(1) Efficiency: by means of sending probe packets with various sizes, WBD can determine the wireless link bandwidth with light load and short time duration;(2) Accuracy: using different mechanisms to filter out the random time variation, a high detection accuracy can be achieved;(3) Stability: our algorithm attains stable results under different cross traffic conditions. Experimental data observed through extensive simulations shows the effectiveness and efficiency of WBD.