The present invention provides a medium access control (MAC) protocol for the collision-free transmission of packets into a channel, such that nodes are assigned time slots for collision-free transmission based on the knowledge they acquire regarding the constituency of their local neighborhoods and...http://www.google.com.hk/patents/US20030067892?utm_source=gb-gplus-share專利 US20030067892 - System and method for collision-free transmission scheduling using neighborhood information and advertised transmission times