PISCATAWAY, N.J.--(BUSINESS WIRE)--IEEE, the world's largest professional organization dedicated to advancing technology for humanity, announced today that the IEEE Standards Association (IEEE-SA) has approved IEEE 802.21d™ Standard for Local and Metropolitan Area Networks. IEEE 802.21d extends the standard’s framework for improving users’ experience for mobile devices by facilitating secure, automated handover between IEEE 802® networks, as well as between IEEE 802 and cellular networks. IEEE