Supporting Fast and Clear Video

In communications networks, 10-Gb Ethernet (10GbE) and gigabit Ethernet passive optical networks (GE-PON) have been widely used and 10 Gb/s Ethernet PON (10G-EPON) and 100GbE were established in 2009 and 2010, respectively. Wireless technologies that can handle optical communications standards are useful for last-mile wireless access and setting up temporary connections to restore a network after a disaster or other disruptions. In the broadcasting field, high-definition television (HDTV), which requires a 1.5-Gb/s data rate, has been accepted in studio and live-relay broadcasts. Moreover, three dimensional HD movies (3 Gb/s), 4K digital cinema (6 Gb/s) and super-high-vision (SHV) (24 Gb/s) [1] have been developed to catch up with the demand for highpresence applications. There is a strong need for broadband wireless equipment that can transmit uncompressed HD videos in various situations. To support the data rate of high-speed protocols and HD videos, there has been a lot of interest in high-speed wireless technologies using the millimeter-wave (MMW) band from 30 to 300 GHz, because this band can provide sufficient bandwidth.