The computer industry has defined the IEEE 802.16 family of standards that will enable mobile devices to access a broadband network as an alternative to digital subscriber line technology. As the mobile devices join and leave a network, security measures must be taken to ensure the safety of the network against unauthorized usage by encryption and group key management. IEEE 802.16e uses Multica...

With the evolution of mobile communications, we are seeing expanding scopes and an increasing number topics within technology area. It is important to address different topics, so that remains relevant continues meeting advancing needs in a consistent manner. This issue Mobile Communications Networks Series explores such expansion, with few complementing each other. On one hand, it discusses ne...