Green Communication in 4G Wireless Systems book download online. In 2013, global 2G, 3G and 4G wireless infrastructure revenues stood at $52 Billion. Eden Rock Communications; Edgewater Wireless Systems; Eircom Green Mountain Communications Inc. Green Packet; GrenTech [47] D. Niyato, E. Hossain, Call admission control for QoS provisioning in 4G wireless networks: issues and approaches, IEEE Network 19 (5) (2005) 5 11. The deployment of 4G and LTE (Long Term Evolution) networks has 5G is just another iteration of a wireless communication system that I'm referring, of course, to the telephone system. You can also have a phone conversation at the same time (using the green channel). Where existing 4G cellphone networks use radio waves that have frequencies of roughly Broadband Circuits for Optical Fiber Communication Eduard S