LTE and future evolutions for the benefits of security wireless networks

First responders make use of professional wireless system (e.g. TETRA) for conducting their missions. Those systems are today mainly used to convey voice and short messages. To improve the operational effectiveness, these organisations need wireless data transmission capabilities to exchange images, access to databases or transmit live video streams from the incident area. But, these needs cannot be realised with narrow-band technologies. However, LTE can bring these capabilities to first responders with timely exchange of files and transmission of live high definition video streams. Besides, future enhancements of LTE, LTE-Advanced, will further improve the performance not only to the benefits of mobile operators but also for first responders by providing additional coverage flexibility and more capacity especially at the cell edge, two key performance indicators of a radio security network.