An adaptive cross-layer bandwidth scheduling strategy for the speed-sensitive strategy in hierarchical cellular networks
Jong-Shin Chen, Mei-Wen Li, Neng-Chung Wang, Yung‐Fa Huang · 2009
Efficient bandwidth scheduling of wireless bandwidth is critical to cellular system performance. Bandwidth scheduling methods can be divided into cell-layer channel allocation and call-layer channel assignment. Previous studies are focused on the latter type of method. Some problems, such as traffic-load variations among base stations (BSs) and BSs failed to provide wireless communication service, are the cell-layer problems and are difficult to handle using the call-layer methods. Therefore, this study presents an adaptive cross-layer bandwidth scheduling strategy for hierarchical cellular networks. This strategy is implemented to solve the traffic-adaptation and the fault tolerance problem according to the speed-sensitive call-layer method.