New WiFi standard 802.11ax or Why 802.11ax is the next big thing in Wi-Fi !

If you have not yet upgraded or purchased 802.11ac you should wait before Upgrading as a new WiFi standard much faster and better will soon be available !

802.11ax standard is the sixth generation of Wi-Fi Why 802.11ax is the next big thing in Wi-Fi !
Last week Broadcom became the third major vendor to announce availability of chips supporting the latest evolution of Wi-Fi. Broadcom’s 802.11ax chipset release includes three separate products for residential gateways, enterprise access points, and smartphones.
Broadcom says that their 802.11ax solution will be a massive boost to Wi-Fi quality, speed, and efficiency: Four times faster download, six times faster upload, four times better coverage, and seven times better battery life compared to current Wi-Fi using the 802.11ac standard.
The company has dubbed their solution ‘Max Wi-Fi’ and has launched this website for more details. The 802.11ax standard is the sixth generation of Wi-Fi technology to be released.
OFDMA is key to better Wi-Fi with 802.11ax
Much of the speed boost will come from wider channels (160 MHz), higher-order modulation (1024 QAM), and support for four streams of 802.11ax. But the most important feature of 802.11ax is arguably uplink and downlink OFDMA (scheduling), which will make this new generation of Wi-Fi operate in a manner similar to cellular networks.
The purpose of OFDMA is to do away with on-air packet collisions thus making Wi-Fi data transmissions faster and much more spectrum efficient. The feature means that 802.11ax will serve up much-improved Wi-Fi especially where the density of users and devices is high.
Eying a big residential market
Broadcom’s 802.11ax solution is likely – at least for starters – to be targeting the huge residential market for Wi-Fi-capable CPEs: This year some 180 million Wi-Fi-capable residential gateways will be shipped and that number is projected to grow to 200 million units by 2020. The company says that a four-family home will need connectivity for up to 50 Wi-Fi devices by 2022.
How enterprises & carriers will benefit
Broadcom’s 802.11ax products are packed with features (read the press release here) including power-saving ‘Target Wake Time’ that puts devices to sleep when they’re not exchanging data. Another direct benefit of OFDMA is improved Wi-Fi coverage resulting from an increase in the effective useful radio signal that can be received by Wi-Fi devices.
Wider coverage will likely be a significant boost to outdoor Wi-Fi in cities or on campuses. Coverage and quality improvements with 802.11ax should also make Wi-Fi a lot more attractive to carriers looking to serve consumers with low-cost data. Other current chipset vendors with 802.11ax products include Qualcomm and Quantenna.
The first 802.11ax products are expected to hit the markets at Christmas 2017 and/or early in 2018.

Why 802.11ax is the next big thing in Wi-Fi ?
IEEE 802.11ax is a type of WLAN in the IEEE 802.11 set of types of WLANs. It is designed to improve overall spectral efficiency, especially in dense deployment scenarios. It is still in a very early stage of development, but is predicted to have a top speed of around 10 Gb/s.[1] IEEE 802.11ax is designed to operate in the already existing 2.4 GHz and 5 GHz spectrums. In addition to utilizing MIMO and MU-MIMO, the new amendment introduces OFDMA to improve overall spectral efficiency, and higher order 1024 QAM modulation support for increased throughput. Though the nominal data rate is just 37 % higher than IEEE 802.11ac, the new amendment is expected to achieve a 4 × increase to user throughput—due to more efficient spectrum utilization.

802.11ax is significantly faster
Ax will be anywhere from 4x to 10x faster than existing Wi-Fi, but the wider and multiple channels greatly increase throughput. For example, if one assumes the speed is increased by 4x with 160 MHz channels, the speed of a single 802.11ax stream will be 3.5Gbps. The equivalent 802.11ac connection will be 866 Mbps. A 4×4 MIMO environment would result in a total capacity of about 14 Gbps. A client device that supported two or three streams would easily top 1 Gbps or much more.
If one knocked the channel width down to 40 MHz, which could happen in crowded areas like stadiums or college dorms, a single .11ax stream would be about 800 Mbps for a total capacity of 3.2 Gbps. Regardless of the channel size, 802.11ax will provide a huge boost in speed and total capacity.
802.11ax will be less congested
One of the big advancements in LTE is something called orthogonal frequency division multiple access (ODMFA), which is an alphabet soup way of saying it does frequency division multiplexing. With previous versions of Wi-Fi, channels were held open until the data transmission had finished. Think of a line at a bank with only one teller where people have to queue up. MU-MIMO means there can be four tellers and four lines, but the people still need to wait for the transaction ahead of them is complete.
With OFDMA, each channel is chopped up into hundreds of smaller sub-channels, each with a different frequency. The signals are then turned orthogonally (at right angles) so they can be stacked on top of each other and de-multiplexed. With the bank analogy, imagine a teller being able to handle multiple customers when they are free. So customer one hands the teller a check and while that person is signing the check, the teller deals with the next customer, etc. The use of OFDMA means up to 30 clients can share each channel instead of having to take turns broadcasting and listening on each.
From a user perspective, the network will seem much less congested than with 802.11ac. Another benefit is that the 2.4 GHz and 5 GHz bands can be combined creating even more channels for data. The ax specification also includes something called QAM (quadrature amplitude modulation) encoding, which allows for more data to be transmitted per packet.
802.11ax improves battery life
Any new Wi-Fi standard will improve battery life, since the range is typically further and data is transmitted faster so the client does not need to work as hard. However, ax has a new feature called wake time scheduling. This enables APs to tell clients when to go to sleep and provides a schedule of when to wake. These are very short periods of time, but being able to sleep a bunch of short times will make a big difference on battery life.
I’ve talked with chip, AP and client device manufacturers about when to expect 802.11ax products, and we should see the first consumer Wi-Fi routers in the early part of 2018 with an outside shot of late 2017. After that, the business grade APs and clients will follow. We are certainly close enough that network managers should be starting the educational process and planning now.
If you’re not sure what this means for your business, talk to your Wi-Fi vendor, as all the major wireless LAN suppliers are planning to support 802.11ax. One final point: If you need to upgrade now, I certainly wouldn’t put if off and wait for ax. Wi-Fi is extremely important to businesses of all sizes and will become more important as the Internet of Things (IoT) becomes more widely adopted.
The evolution of client devices has been “game changing,” as there’s almost nothing we do that doesn’t involve them. The 802.11ax specification finally brings a Wi-Fi standard to the network that can support all of the things we want to do with our wireless LANs.

With Downlink MU MIMO a device may transmit concurrently to multiple receivers and with Uplink MU MIMO a device may simultaneously receive from multiple transmitters. Whereas OFDMA separates receivers to different RUs, with MU MIMO the devices are separated to different spatial streams. In 802.11ax, MU MIMO and OFDMA technologies can be used simultaneously. To enable uplink MU transmissions, the AP transmits a new control frame (Trigger) which contains scheduling information (RUs allocations for stations, modulation and coding scheme (MCS) that shall be used for each station). Furthermore, Trigger also provides synchronization for an uplink transmission, since the transmission starts SIFS after the end of Trigger.

Is 802.11ax Wi-Fi?
Yes, 802.11ax is the next version of Wi-Fi, and 802.11ax devices should be backward compatible with all existing Wi-Fi devices. You should absolutely get an 802.11ax device when they become available. There’s a new version of Wi-Fi about every four or five years. 802.11a and b started in 1999, followed by g in 2003, n in 2009, and ac in 2013 (with another revision in 2015).
There are a lot of other standards starting with 802.11. For instance, 802.11ad is ‘WiGig,’ which has extremely high speeds but poor wall penetration. 802.11p is a special kind of Wi-Fi to allow moving cars to talk to each other. 802.11u describes a way to easily connect to public hotspots otherwise known as “Hotspot 2.0.”

How Does 802.11ax Work?
802.11ax improves performance with several major new technologies.
• Improved multi-user MIMO means routers can steer wireless beams directly at up to right users at a time, up from from with 802.11ac. They can also now do this with both uploads and downloads, not just uploads as in 802.11ac.
• OFDMA means rather than having users take turns broadcasting and listening on each channel, up to 30 users will be able to share each channel.
• Combining the 2.4GHz and 5GHz bands creates more channels for data, and 1024 QAM encoding (which is an experimental feature in some 802.11ac routers) allows for more data per packet.
• Uplink scheduling takes some of the delay out of waiting for a free channel, as routers can tell clients when they’ll have time to listen for uploads.
• Wake time scheduling lets routers tell clients to take a nap until they have time to chat, scheduling when to wake up in advance. That helps save battery life.
What Are the Downsides of 802.11ax?
802.11ax is a hardware upgrade, not a software upgrade. To see real improvements with 802.11ax, you need both the router and client to support ax. Busy, public Wi-Fi systems like coffee shops and hotels may not upgrade their routers frequently.
You also need as many ax clients on the network as possible. As ax clients replace older, slower 802.11g or 802.11n clients, the overall network speed and capacity will increase. So, once again, it’ll take a few years before you really see 802.11ax capacity improvements on public Wi-Fi.
When Will 802.11ax Routers Go On Sale?
You should expect 802.11ax routers to come from all of the major router vendors, such as Netgear and D-Link, for the 2017 holiday season. The technology will appear in laptops and phones in 2018, and will probably be included in Qualcomm’s presumed next Snapdragon chip (along with Qualcomm’s new X20 modem) in 2018.

Please refer to the following article from PC Mag and Author Sascha Segan for all the details there : –
https://www.pcmag.com/article/351868/what-is-802-11ax-the-solution-to-crowded-wi-fi

New CPU’s from AMD and Intel

Brand New CPU’s from AMD and Intel that should mean Better Performance or Better Bang for your Bucks.
AMD has finally after a long wait come out with new CPU’s and Infrastructure built around them.
These are the RYZEN 3,5,& 7. Several Sites and Magazines are presently talking about them, and of course as always
for Canada delivery is later than in U.S. but should be starting to appear as I write this !
Here are some basics about the AMD CPU”s

Ryzen 3 Four Cores 10MB Cache
Ryzen 5 Four to Six Cores from 10 to 16MB Cache UP TO 12 tHREADS
Ryzen 7 Eight Cores 20MB Cache, 16 Threads
Ryzen Threadripper 8-16 Cores (32 processing Threads) from 20 to 40MB Cache
Motherboards need to support AM4 chipsets
AMD Ryzen™ 7 1700: World’s lowest power 8-core consumer desktop processor

Here are additional Détails : –

In the five years prior to the release of Ryzen, AMD’s direct competitor in the x86-64 consumer level CPU marketspace, Intel, has continued to grow its market share with the continued tick-tock cycle of their Intel Core series of chips. Since the release of their last CPU in 2011 AMD had fallen behind Intel significantly in both single-core and multi-core CPU performance benchmarks. While AMD had completed a die shrink and revision of their CPU architecture, performance and sales had fallen significantly against the competing Intel products. Ryzen is the first consumer level implementation of the new Zen microarchitecture. The Ryzen CPUs returned AMD to the high-end desktop CPU market, offering performance able to compete with Intel’s Core i7 series of CPUs. The Ryzen CPUs offer a stronger multi-threaded performance and weaker single-threaded performance relative to comparable Intel CPUs. Since the release of Ryzen CPUs, AMD’s CPU market share increased
• All models except Threadripper (which uses Socket TR4) require AMD Socket AM4. Meaning for mostr of us we bneed to buy a new Motherboard and possibly other add-ons !
• All models support DDR4-2666 ×2 Single Rank, DDR4-2400 ×2 Dual Rank, DDR4-2133 ×4 Single Rank, or DDR4-1866 ×4 Dual Rank.[6][8]
• All models support: x87, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, CLMUL, AVX, AVX2, FMA, CVT16/F16C, ABM, BMI1, BMI2, SHA.[9]
• Transistors: 4.8 billion per 8-core “Zeppelin” die
• Ryzen CPUs feature unlocked multipliers across the board for overclocking. All Ryzen products support auto-overclocking, dubbed “XFR” (eXtended Frequency Range), with X branded Ryzen products giving twice the XFR boost as non-X branded Ryzen products (100 MHz overclock vs 50 MHz overclock),[13] although AMD does not list non-X branded Ryzen CPUs as having support for XFR. Of note, is that XFR values are doubled on Threadripper CPUs; with X models having 200MHz, rather than the usual 100MHz of XFR boost.[14]
• AMD officially revealed their codename “Summit Ridge” Ryzen CPUs on February 22, 2017.[15] Ryzen CPUs differ from Zen-powered APUs in that they exclude an integrated GPU and instead rely on an external, dedicated one.

• Ryzen is launching in conjunction with a line of stock coolers, the “Wraith Spire”, “Wraith Stealth” and “Wraith Max”. This line succeeds the original “Wraith” cooler, which was positively received when released in mid-2016.[16] The “Wraith Stealth” and “Wraith Spire” are included with certain Ryzen CPUs, as listed below. the “Stealth” is a low-profile unit meant for the lower-end CPUs and is rated for a TDP of 65W, whereas the “Spire” is the mainstream cooler with a TDP rating of 95W and modest headroom for overclocking, along with optional RGB lighting on certain models. The “Wraith Max” is a larger, aftermarket unit intended to handle more intensive overclocks than the “Spire”.
• All models support AMD’s SenseMI Technology, which uses AMD Infinity Control Fabric to offer the following features.[6][17][18]
o AMD Pure Power reduces the entire ramp of processor voltage and clock speed, for light loads.
o AMD Precision Boost increases the processor voltage and clock speed while the number of active cores <= 2, (4 on Threadripper CPU's). o AMD XFR (eXtended Frequency Range) increases the processor voltage and clock speed beyond the maximum Precision Boost, when sufficient cooling is available.[19] o Neural Net Prediction and Smart Prefetch use true AI inside the processor to optimize instruction workflow and cache management. Access the following for more information :- https://en.wikipedia.org/wiki/Ryzen OR The Intel reveal is the i9 7900 series with Top of the line being 7900XE for Extreme Edition 7900X is 10 Cores, with 20 Threads, 3.3Ghz frequency, Turbo Boost allows up to 4.5Ghz, support for DDR4 etc... 7900X. 7920X, 7940X,7960X, and the 7980X are the ones available. To Quote By Mark Hachman Senior Editor, PCWorld | AUG 28, 2017 4:40 PM PT Intel’s Core i9 processor is what happens when Intel begins to worry that it might not have the baddest chip on the block. If you’re desperate to know how it performs against AMD’s Threadripper, you’ll want to read up on the latest details on Core i9 speeds— and where’s that 12-core Core i9-7920X, anyway? Supposedly it launched on August 28, but hasn't shown up. Read on for the speeds, feeds, and prices of the new Core i9 chips, and all the details we have on the underlying technologies. In addition to the new Core i9 specs, we now know how the Core i9 performs as part of our review, and the price and availability of X299 motherboards. We’ll update this post with new information and testing as we receive it. Most likely to steal some attention away from the eagerly awaited AMD Threadripper reviews due soon, Intel filled in the remaining gaps on its spec sheet in early August. The company revealed the clock speeds, TDP power estimates, and ship dates for its four most powerful Core i9 chips: the 12-core Core i9-7920X, the 14-core Core i9-7940X, the 16-core Core i9-7960X, and the 18-core Core i9-7980XE. The 12-core Core i9-7920X launches August 28, while the 14-, 16-, and 18-core Core i9 chips ship on September 25. August 28 arrived, and... where’s the Core i9-7920X? That’s a great question. The chip doesn’t even appear on Amazon, and on Newegg, it’s backordered. Finally, Intel has announced all of the clock speeds of the Core i9 family. They’re all unlocked, too—ready and waiting to be overclocked. Here’s a summary of the core counts and prices of the Core i9 chips we do know, including clock speeds where available. Core i9 Extreme Edition: (All pricing in American Dollars) Core i9-7980XE: (2.6GHz, 4.4GHz burst) 18 cores/36 threads, $1,999 Core i9: Core i9-7960X: (2.8GHz, 4.4GHz burst) 16 cores/32 threads, $1,699 Core i9-7940X: (3.1GHz, 4.4GHz burst) 14 cores/28 threads, $1,399 Core i9-7920X: (3.1GHz, 4.4GHz burst) 12 cores/24 threads, $1,199 Core i9-7900X: (3.3GHz, 4.5GHz burst) 10 cores/20 threads, $999 Core i7: Core i7 7820X (3.6GHz, 4.5GHz burst), 8 cores/16 threads, $599 Core i7-7800X (3.5GHz, 4.0GHz burst), 6 cores/12 threads, $389 Core i7-7740X (4.3GHz, 4.5GHz burst), 4 cores/8 threads, $339 Core i5: Core i5-7640X (4.0GHz, 4.2GHz burst), 4 cores, 4 threads, $242 all use a new Socket R4, a 2,066-pin LGA socket that will require a brand-new motherboard. Intel’s Core i9 family is not backward-compatible with existing Skylake or Kaby Lake motherboards. For some reason, Intel decided that the 8-core and 6-core Skylake-X chips aren’t worthy enough, so they carry the Core i7 name. They share some common architectural features with the “true” Core i9 chips, though, so we’ve included them. The same goes for a second family of chips, known as Kaby Lake-X—basically the same seventh-generation CPUs you’ve seen on laptops and desktops for more than a year, but that also connect to the same X299 chipset as the Skylake-X chips do. The two Kaby Lake-X chips will be quad-core only parts. Remember that for now, every Core i9 motherboard you’ll buy is based on the Socket R4, a 2,066-pin LGA socket that’s incompatible with some of the older Core i5 and Core i7 microprocessors. (The Core i5-7640X, Core i7-7740X, Core i7-7800X, and Core i7-7820X all use the new 2,066-pin socket, too.) All of the new motherboards are based on Intel’s X299 chipset, the only chipset for the Intel Core i9 right now. For Further Details please read the entire Article at :- https://www.pcworld.com/article/3199955/components-processors/intel-core-i9-prices-specs-release-date-features-faqs.html