HTTP adaptive streaming with indoors-outdoors detection in mobile networks

In mobile networks, users may lose coverage when entering a building due to the high signal attenuation at windows and walls. Under such conditions, services with minimum bit-rate requirements, such as video streaming, often show poor Quality-of-Experience (QoE). We will approach this problem in two steps. First, we present a Bayesian detector that combines measurements from two Smartphone sensors to decide if a user is inside a building or not. Second, we extend a widely-used HTTP adaptive streaming (HAS) algorithm to take coverage classification into account. Measurements in a typical office environment show high accuracy for the presented detector and superior QoE for the proposed HAS algorithm.