A method and system for communicating information over a wireless channel in a communication system including a coordinator and receivers, involves controlling channel access by dividing a contention-free period (CFP) into one or more schedules, wherein each schedule includes one or more periodical channel...http://www.google.com/patents/US7920540?utm_source=gb-gplus-sharePatent US7920540 - Method and system for reliable broadcast or multicast communication in wireless networks
