Improving QoS in High-Speed Mobility Using Bandwidth Maps
It is widely evidenced that location has a significant influence on the actual bandwidth that can be expected from Wireless Wide Area Networks (WWAN), e.g., 3G. Because a fast moving vehicle continuously changes its location, vehicular mobile computing is confronted with the possibility of significant variations in available network bandwidth. While it is difficult for providers to eliminate bandwidth disparity over a large service area, it may be possible to map network bandwidth to the road network through repeated measurements. In this paper, the authors report results of an extensive measurement campaign to demonstrate the viability of such bandwidth maps.