Samsung Electronics today announced a 60GHz (802.11ad) Wi-Fi technology that enables data transmission speeds of up to 4.6Gbps, a five-fold increase from 866Mbps, using the 5 GHz band. The 60 GHz Wi-Fi technology will enable a 1 gigabyte movie to be transferred between devices in less than three seconds while allowing uncompressed high-definition videos to be streamed from mobile devices. Samsung likely to include WiGig as a differentiator in its Galaxy and
Note smartphones by the end of 2015, say industry observers.
Samsung says its 802.11ad technology eliminates co-channel interference, no matter how many devices are accessing network. Samsung also enhanced the overall signal quality by developing what they say is the world’s first micro beam-forming control technology that optimizes the communications module in 1/3,000 second increments.
The Wireless Gigabit Alliance (WiGig) was a trade association that developed and promoted the adoption of multi-gigabit speed wireless standards over the unlicensed 60 GHz frequency band. The alliance was subsumed by the Wi-Fi Alliance in March 2013.
Samsung notes there are challenges in commercializing 60 GHz Wi-Fi because millimeter waves that travel by line-of-sight and have weak propagation characteristics that will be easily blocked by walls.
Chipsets supporting 60GHz 802.11ad are coming from a variety of sources including Qualcomm, Marvel and Broadcom as well as small, fabless semiconductor firms like Nitero. Qualcom’s Snapdragon 810, due next year, includes WiGig. Qualcomm acquired Wilocity in July 2014, and Nitero has announced its mobile WiGig solution.
Samsung said it plans to put its 802.11ad technology in a variety of devices, including audio visual and medical devices, as well as telecommunications equipment.
Eventually, the Wi-Fi Alliance expects chipsets to support all three bands, enabling both compatibility and new uses.
Samsung isn’t the first to promote 60 GHz for consumers. Dell introduced the Latitude 6430u laptop at the 2013 CES which included both 2.4 and 5 GHz connections, as well as a new 60 GHz connections.
Here’s a review of evolving WiFi standards:
- IEEE 802.11n: Increased the maximum raw data rate from 54 Mbit/s to 600 Mbit/s by using as many as four spatial streams with a double width channel (40 MHz). MIMO architecture and wider channels improved speeds on 5 GHz and 2.4 GHz channels.
- IEEE 802.11ac: Provides high throughput in the 5 GHz band. It uses 80 MHz and 160 MHz channel bandwidths (vs. 40 MHz maximum in 802.11n) and supports up to 8 spatial streams (vs. 4 in 802.11n)
- IEEE 802.11ad: Now with the WiGig specs folded in, provides high throughput in the 5 GHz band and 60 GHz bands. The 60 GHz band is stopped by walls, so range will be shorter, but the spectrum is wider, supporting nearly 7 Gbps throughput.
The unlicensed 60 GHz band varies slightly around the world. The standard divides the unlicensed 60 GHz band into four 2.16 GHz wide channels. Data rates of up to 7 Gbits/s are possible using OFDM with different modulation schemes. A single-channel version for low-power operation is available and can deliver a speed up to 4.6 Gbits/s.
ABI Research estimates over 1.5 billion chipsets with 802.11ad will ship in 2018. Smartphones will account for nearly half of all 802.11ad-enabled products in 2018, though with less than half the volume in smartphones compared to 802.11ac, says the research firm.
The IEEE 802.11ac and 802.11ad standards may also use Multi-user MIMO (MU-MIMO), where simultaneous streams are transmitted to different users on the same channels.
Related Dailywireless articles include; WiGig: 60 GHz WiFi Rolls Out, WiGig to Demo 4K Wireless at Intel Forum, WiGig Folded Into Wi-Fi at 60 GHz, Marvel 802.11ac: Now with 4×4 Beamforming, Fast Transistion to 802.11ac Predicts ABI, Broadcom 802.11ac for Phones, Quantenna: 802.11ac Chipset,