Advanced Technologies in Gigabit Wireless LANs: An In-Depth Overview of 802.11ac
Mohesen Guizani, Hsiao-Hwa Chen, Chonggang Wang · 2015
As the IEEE 802.11n (High Throughput) standard amendment development matured and associated products became popular in the market, IEEE 802.11 initiated a new study group in May 2007 to investigate Very High Throughput (VHT) technologies. The Wi-Fi Alliance was solicited to provide usage models to help develop require- ments [8]. The general categories of the usage models included wireless display, dis- tribution of high-definition TV, rapid upload/download, backhaul, outdoor campus, auditorium, and manufacturing floor [11]. Specific usages that will be most prevalent in the marketplace include compressed video streaming around a house, rapid sync- and-go, and wireless I/O. With streaming around the home, it is envisioned that TVs and DVRs around the home will have wireless capability and 100+ Mbps aggregate of videos from a DVR can be displayed wirelessly on TVs in different rooms. With rapid sync-and-go, users can quickly sync movies or pictures betweenmobile devices such as a phone, a laptop, or a tablet. With a 1 Gbps radio link, a 1 GB video file will take much less than a minute to transfer between devices. Data rates exceeding 1 Gbps will provide the capability for a wireless desktop, with wireless connections between a computer and peripherals such as monitors, printers, and storage devices.