A Wireless Grid in Ubiquitous Broadband Wireless Services for Mega-Event Scenario and its Distributed Power Control

Wireless grid can provide consumers ubiquitous broadband wireless services with convenience, robustness and mobility, which is one of the most promising alternatives of fixed wireless access networks. As the deployment of Wide City has accelerated quickly, this study focuses on the key technologies of wireless grid in ubiquitous broadband wireless services, such as antennas, MAC design, channel assignment and interface scheduling. A novel hierarchical wireless network based on WiMax-WiFi grid is proposed for mega-event. As a key enabling technology for wireless grid, a distributed power control algorithm for WiFi AP is proposed in this study to achieve the load balancing and the improvement of network performance.