Editor’s Note: A recent VT Miltope news release caught our eye and we wanted to set up this story for our readers with a bit of Cognitive Hot Spot background information, but then we saw this Innovation announcement in an Inflight’s e-message: “Inflight is pleased to award VT Miltope as the winner of the ‘Innovation in commercial airline cabins’ category,” said Mark Howells. “The company is a worthy winner with the development of its Cognitive Hotspot Technology which aims to provide airlines with a solution in facing the challenges of seamless connectivity in-flight.” It sort of says it all from a bottom line perspective!

However, to get a better idea of the company’s technology and its benefits, let’s start with their latest nMAP2 announcement. “VT Miltope has started delivering an IEEE 802.11ac Multifunction Access Point (nMAP2) as its latest wireless product. Building upon the success of VT Miltope’s wireless access point products, nMAP2 features Cognitive Hotspot Technology (CHT), an integrated MIMO antenna assembly and a second radio to support legacy 802.11n client devices.”

Because of the advances that nMAP2 with CHT offers over other wireless access points (AP), we wanted to point out it in this pre-AIX issue so our readers check it out at the EXPO. Further, we wanted to relate what it is and what it does, as well as, how airlines and airline passengers will benefit from CHT. VT Miltope has the only wireless access point with this feature and, according to Mr. Guidetti, “We are very proud of our accomplishment and what it will do for cabin connectivity performance – it’s the latest advancement in wireless!”

There is a lot more in the above sentences than meets the eye… let’s look at a couple the concepts, one at a time:

nMAP2

VT Miltope’s newest Aircraft Wireless Router with CHT built-in.

802.11n

VT Miltope expects passengers to be bringing legacy 802.11g & n passenger devices onto airplanes for many years.  This will be similar to today, with passengers bringing 802.11g devices even though 802.11n has been available for 5+ years.  Given the added complexity and higher power requirements of 802.11ac, it may be that some passenger devices never migrate to 802.11ac. That’s why they have a second radio to support 802.11a/g/n.

802.11ac

The other radio in the access point operates in the 5 GHz band and will deliver data rates in the gigabit range. The good news about that is that there’s far more room in that frequency spread than there is in the over-used 2.4 GHz.

Benefits: The most significant improvements are more data spatial streams, 80MHz channel width operation, and data aggregation scheme that should increase data efficiency.

At the raw bit level, 802.11ac will support data rates of at least 1 Gbps on three streams using a combination of wider bandwidth channels and high-density modulation. Where 802.11n could run on 20 MHz or 40 MHz channels, 802.11ac can be deployed on 20-, 40-, and 80-MHz channels. Bigger channels translate into more potential bits per second. To pack more bits into the available radio spectrum, 802.11ac also uses a coding system that delivers up to 33% more efficiency.

Benefits: It is here today; faster, more efficient data, and more channels will also benefit the users. This means a network can support simultaneously streaming multiple HD-quality videos to multiple devices. And, we understand, VT Miltope has begun delivering this new product.

GigaBit Ethernet

nMAP2 has a built in Ethernet switch providing multiple Gigabit Ethernet ports to connect to the IFEC network server and for daisy chaining other nMAP2s to minimize cable installation to reduce weight and costs. VT Miltope completed nMAP2 qualification testing with all three Ethernet ports running during qualification testing.

Benefits: The improved 802.11ac data rates necessitate faster Ethernet capabilities with the wireless access point otherwise the wired interface becomes the bottleneck. nMAP2 has three Gigabit Ethernet ports, one for connecting to the IFEC network server, one to daisy chain to another nMAP2, and a third for connecting other IFEC systems or equipment such as Satcom. nMAP2’s preserve the Ethernet connection to the network and other nMAP2’s in the event there is a daisy chained nMAP2 failure because the Ethernet switch remains operational. Furthermore, to add redundancy the last nMAP2 may be looped back into the network so the last nMAP2 in the chain remains connected to the network even if an nMAP2 in the middle of the daisy chain fails. In the unlikely event that an nMAP2 wireless connection is interrupted; CHT senses the wireless interruption and reconnects those clients to the other operational nMAP2 or from a non-operational nMAP2 radio to the second radio. This improves the overall availability of the wireless network on the aircraft to meet the performance expectations of the passengers and crew. This is a reliability game-changer.

MIMO

Multiple-Input and Multiple-Output, or MIMO is the use of multiple antennas on both the transmitter and receiver to improve connectivity performance. Multiple antennas are used to perform smart antenna functions such as distributing the total transmit power over the antennas to achieve an array gain that improves the spectral efficiency (more bits per second per hertz of bandwidth), beam directivity and/or achieving a diverse gain that reduces fading and improves link reliability.

Benefits: Basically this is an antenna designed for aircraft cabin environments to improve connectivity performance at each seat with more seats served resulting in more happy users onboard!

Now, back to the news release:

“Cognitive Hotspot Technology (CHT), available exclusively with nMAP2, is state-of-the-art wireless management technology tailored specifically to improve wireless performance in congested aircraft cabins… With CHT, nMAP2’s provide proactive cabin network management to optimize the total network capacity, thus supporting a substantially better passenger experience. CHT features various dynamically and automatically adapting modules such as intelligent roaming, wireless power control, channel assignment, load balancing, and interference minimization. These modules are customized according to each airline’s service and content delivery requirements and priorities.”

Cognitive Hotspot Technology

CHT is software embedded on VT Miltope Wireless Access Point that converts them into Smart Access Points. Smart APs are collaborative. They talk to one another and act together as a team to optimize the network capacity. Smart APs take their environment into account, continuously sensing it to adapt in real-time and deliver the best signal for each receiver (PED). Information is shared among the Smart APs to create aircraft network awareness and manage the available resources jointly. CHT helps to prevent interferences and network congestion, sets measures to guarantee network-wide Quality of Signal (QoS), enables seamless roaming and balanced networks, and improves overall network capacity. In other words, CHT delivers the best signal to each user, in each seat.

Benefit: The benefit is to your passengers. The Wi-Fi signal they receive on their personal electronic devices is higher in signal strength and faster in data rate. This means a more consistent wireless signal for better audio, better video, and a much better user experience.

Access Controller

Access Controller mode adds DHCP server capabilities with routing, traffic control, and prioritization for different user VLANS or traffic to nMAP2 operation.

Benefit: Basically, access controller is a mode of operation that allows for the creation of a wireless local area network on the aircraft. An nMAP2 operating as an access controller in conjunction with other nMAP2s operating as access points establish the wireless local network and provides intelligent data forwarding to maintain the security of the network. Access controller can take advantage of an external RADIUS server to store user accounts that can be locally defined. The access controller establishes links with the access points wirelessly.

And finally here is the ‘plane’ benefit to your airline and your passengers, also from the news release:

“Pioneering the introduction of wireless access point technology to aircraft cabins since 2001, VT Miltope has a proven history for delivering highly reliable wireless products. Improving on our current nMAP, nMAP2 incorporates the latest in wireless security, is more compact, weighs less further enhances reliability, and reduces overall ship set costs.”

The company continues to bring about innovation in their product line… that is what this business is all about. For example, the nMAP2 weighs less, is more compact, and improves reliability more than earlier products. Up to 64 VLANs (IEEE 802.1q) are available to support separate user networks.  Customized network and user group profiles are possible using 16 concurrent VSC (Virtual Service Community), each having configurable SSIDs, QoS, security, and filtering.”

In closing, we want to let you know that there will be more VT Miltope news coming during and after AIX, Mr. Guidetti told IFExpress, and the best advice we have for our readers is to Stay Tuned!

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Astronics AES, known for bringing power to passengers and airline personnel,  announced its agreement with SmartTray International, LLC.  Astronics AES will exclusively market, sell and manufacture SmartTray’s new passenger device-friendly aircraft tray table solutions that facilitate hands-free use of portable electronic devices (PEDs) and smartphones for an improved passenger experience. This is a brilliant product diversification. Stay Tuned for what’s next! (Editor’s Note: Check out their website here TheSmartTray.com  for an idea of how this simple and useful product works!)