The wireless industry is busy with the standardization of the 4th Generation (4G) cellular networks. The 4G standards are expected to be concluded in the next year or two. 4G wireless system cannot exist in today's market without standardization. The 4G concept shave already moved to the standardization phase, the authors must begin to work on the building blocks of the 5G wireless networks. The major difference, from a user point of view, between current generations and expected 5G techniques must be something else than increased maximum throughput; other requirements include low battery consumption and more secure.