1. A wireless communication network comprising: a plurality of mobile nodes each comprising a transceiver, a directional antenna connected to said transceiver, and a controller connected to said transceiver and comprising a communications router to discover routes and route communications to neighboring nodes with a routing protocol, a time slot scheduling unit to schedule time slots to establish a communication link with each neighboring mobile node, an antenna aiming unit to aim said directional antenna toward each neighboring mobile node during communication therewith, and a link quality estimator to estimate link quality based upon the quality of each time slot scheduled for the communication link and to report estimated link quality to the communications router.