Abstract Through this paper we want to contribute the understanding of main concepts, methods and tools which make possible transition a new type entrepreneurship, namely digital entrepreneurship (DE). The importance topical concept, is an accelerated expanding practice, lies in fact that business offers opportunities transcend geographic space, primarily through global online space. forecasts ...

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...