What You Need to Know About WiMAX 802.16

July 26, 2018 at 8:00 AM

 

In the IEEE’s world of standards, 802.16 is dedicated to the global deployment of broadband metropolitan area networks. The technology for this standard has been named WiMAX (Worldwide Interoperability of Microwave Access), it is used for long-rage wireless networking for mobile and fixed connections. Though not as popular as Wi-Fi or LTE, WiMAX has much to offer.

 

When compared to similar technologies, WiMAX offers low cost and increased flexibility. It is an OFDMA-based, all IP, data-centric technology ideal for use in 4G mobile. WiMAX can be installed with shorter towers and less cabling, which supports city or country-wide non-line-of-sight (NLoS) coverage. This cuts down installation time and saves on cost when compared to standard wired technology such as DSL. In addition to fixed connections, WiMAX service is offered through a subscription for access via devices with built-in technology. Currently, WiMAX is in many devices such as phones, laptops, Wi-Fi devices and USB dongles.

 

WiMAX is capable of speeds up to 40 Mbps over a distance of several miles. WiMAX can also provide more than just internet access, it can deliver video and voice transmissions and telephone access. All of these capabilities, plus lower cost and faster installation times make it an attractive option for areas where wired internet is too costly or not available. WiMAX can also be used in several other ways: as a backhaul to transfer data through an internet network, as a replacement for satellite internet for fixed wireless broadband access and for mobile internet access comparable to LTE.

 

After many revisions, WiMAX has now evolved into its most current version: WiMAX Advanced, which is backwards-compatible with previous versions (WiMAX Release 1.0 and 2.0). WiMAX Advanced utilizes all of the same capabilities while providing 100 Mbps mobile speeds and 1 Gbps fixed station speeds. Plus, WiMAX Advanced supports additional devices and broadband wireless access technologies, MIMO, beamforming and radio access technologies for operation within a multi radio access network. WiMAX is managed by the WiMAX forum, a non-profit group that certifies and endorses wireless products that are compatible with the 802.16 standard, these include WiMAX Advanced, AeroMACS and WiGRID.

 

Of course, there are drawbacks to WiMAX, speeds can get slower as the source gets further away. Also, when multiple users are connected at the same time, performance can suffer. WiMAX might never be as popular as Wi-Fi, but there are plenty of benefits that make it a good option to consider.

 

Short Range Communications: A to Z

July 12, 2018 at 8:00 AM

 

These days, there is more wireless technology in use than ever before. From phones to toys to industrial automation, wireless devices are being used in all sectors, and for good reason. Wireless technology is portable, easy to install, flexible and eliminates the cost of expensive wiring. With the boom of wireless devices, there has also been a surge of wireless protocols and standards to support all of that technology. These include several short range wireless communication technologies that transmit shorter distances than other long range technologies but still pack a punch, which makes them great for certain applications. Here, we’ll take a look at the long list of short range communication standards and technologies to see how they stack up.

 

ANT+

 

ANT and ANT+ are sensor network technologies used for collecting and transferring sensor data and are maintained by the ANT+ Alliance Special Interest Group. This protocol is a type of personal-area network (PAN) that features remarkably low power consumption and long battery life. It divides the 2.4 GHz band into 1 MHz channels and accommodates multiple sensors. ANT+ is primarily used for short-range, low-data-rate sensor applications such as sports monitors, wearables, wellness products, home health monitoring, vehicle tire pressure sensing and in household items that can be controlled remotely such as TVs, lights and appliances.

 


Bluetooth

 

This popular technology is managed by the Bluetooth Special Interest Group (SIG) and is covered by the IEEE 802.15.1 standard. Originally created as an alternative to cabled RS-232, Bluetooth is now used to send data from PANs and fixed and mobile devices. This plug-and-play technology utilizes the 2.4 -2.485 GHz band and has a standard range of 10 meters, but it can extend to 100 meters at maximum power with a clear path. Bluetooth Low Energy has a simpler design and is a direct competitor of ANT+, focusing on health and medical applications.

 

 

 EnOcean

 

This system is self-powered and able to wirelessly transmit data by using ultra-low power consumption and energy collecting technology. Instead of a power supply, EnOcean’s wireless sensor technology collects energy from the air.  Energy from the environment, such as light, pressure, kinetic motion and temperature differences, is harvested and used to transmit a signal up to 30 meters indoors using a very small amount of energy. In the US, EnOcean runs on the 315 MHz and 902 MHz bands. In Europe, it uses the 868 MHz frequency band and in Japan, it operates on the 315 MHz and 928 MHz frequency bands.

 

 

  FirstNet

 

The FirstNet organization is an independent government authority dedicated to providing specialized communication services for first responders. The FirstNet network is the first high-speed, nationwide, wireless broadband network dedicated to public safety. With this network, all emergency workers are able to use one interoperable LTE network devoted solely to keeping them connected. FirstNet uses the 700 MHz spectrum available nationwide and aims to solve interoperability challenges and ensure uninterrupted communication to enhance the safety of communities and first responders.

 

NFC


Near-Field Communications (NFC) is an ultra-short-range technology created for contactless communication between devices. It is often used for secure payment applications, fast passes and similar applications. Operating on the 13.56 MHz ISM frequency, NFC has a maximum range of around 20 cm, which provides a more secure connection that is usually encrypted. Many smart phones already include an NFC tag.

 

 

RFID


Radio-frequency identification (RFID) uses small, flat, cheap tags that can be attached to anything and used for identification, location, tracking and inventory management. When a reader unit is nearby, it transmits a high-power RF signal to the tags and reads the data stored in their memory. Low frequency RFID uses the 125-134 kHz band, high frequency RFID uses the 13.56 MHz ISM band and Ultra-high frequency RFID uses the 125-134 kHz band. With multiple ISO/IEC standards available for RFID, this technology has replaced bar codes in some industries.

 

 

ZigBee


ZigBee is the standard of the ZigBee Alliance. The path of a message in this network zig-zags like a bee, hence the name. It is a software protocol that uses the 802.15.4 transceiver as a base and is meant to be cheaper and simpler than other wireless personal area networks (WPANs), like Wi-Fi or Bluetooth. ZigBee is able to build large mesh networks for sensor monitoring, handling up to 65,000 nodes, and it can also support multiple types of radio networks such as point-to-point and point-to-multi-point. It has a data rate of 250 kB/s and can transfer wireless data over a distance of up to 100m. ZigBee can be used for a range of applications including remote patient monitoring, wireless lighting and electrical meters, traffic management systems, consumer TV and factory automation, to name a few.

 

 

Where short range communication lacks in distance, it more than makes up for in versatility and capability, and as we can see there are plenty of options available to support all of your short range application requirements.

 

IoT: Making the World Safer

June 21, 2018 at 8:00 AM

 

We are living in exciting times. With the development of the IoT making it possible to connect devices and make smart homes, smart businesses, smart cars and smart cities, our world is evolving into an interconnected network designed to make life easier. In previous posts, we’ve explored the IoT and antennas, the Industrial IoT (IIoT) and how the IIoT is changing manufacturing. Aside from the business aspect of the IoT, is there a greater benefit to society? Here, we’ll look at how the IoT, and all of its things, can also be used to make the world safer.

 

Today, body cameras are offering a previously unseen view into the world of policing and social media allows for crimes to be publicly documented by anyone with a smartphone. Plus, cameras and surveillance systems are already being implemented in many cities to keep a watchful eye when law enforcement isn’t physically present. Take that a step further and there are technologies being introduced that are truly transformative. Intelligent roadway systems are being utilized to direct traffic flow and manage digital signs that provide information to drivers, all to help avoid accidents and make the roads safer. This same type of technology, along with GPS, can also allow first responders to better navigate through traffic and improve response times.

 

Furthermore, with the IoT, there is a huge amount of data being collected. All of this information can be used to analyze behavior and patterns and create algorithms to identify potential crimes before they occur. Everything from past criminal activity, behavior patterns, weather patterns, social media activity and gunshot sensors can be used to inform law enforcement and help prevent crimes from taking place, or lessen the effect of the event. In fact, some cities already have technology in place that uses sensors to detect a gunshot, determine the location of shots fired and deliver that information to law enforcement within one minute. Much like a fire alarm alerts of potential danger, this system alerts of a potential active shooter situation, notifies the police and provides real-time data on where shots were fired and the layout of the location.

 

Other technology making the world safer includes self-driving cars, which remove some element of human error and could eliminate the risk that goes along with high-speed chases. Also, drones can be used to provide aerial surveillance, assess and access areas that might be too dangerous for officers or first responders to enter blindly. GPS can be used to track where someone is in a building, making it easier to find people in the event of a fire, natural disaster or other emergency situation. Plus, health monitoring devices can provide information to first responders if a victim is unresponsive. These devices might even be able to detect a health issue before it occurs.

 

There are many ways that the IoT is changing the world for the better, including safety. By using IoT technology and connecting devices to allow people to navigate this world more safely, we all win.

 

Wizarding World of Our Product Wizards

June 14, 2018 at 8:00 AM

 

Have you ever felt overwhelmed while trying to find the right parts for your application? Ever felt lost in a world full of connector, cable, antenna, adapter and amplifier options? Have you ever dreamed of being able to find exactly the product you need with the click of a mouse or touch of the screen.  Fortunately, you don’t need a magic wand for your wish to come true, our product wizards are here to help with no magical powers necessary.  

 

We have designed 18 product wizards that, just like magic, are able to determine the exact product you need. With minimal input from you, these wizards can help you navigate through a plethora of product options, taking the guesswork out of finding what’s right for your application.

 

Our product wizards are simple and easy to use. For example, to determine the perfect antenna for your application, our antenna product wizard only has 4 questions before showing you all of your antenna options:

 

1.      Select antenna frequency

 

2.      Choose type of antenna

 

 

3.      Pick antenna gain

 

 

4.      Select antenna connector

 

5.      Then behold the magic of the product wizard

 

 

Here is list of our product wizard available to use anytime and free of charge:

 

·        Adapters

·        Amplifiers

·        Antennas

·        Cable Assemblies

·        Coax Lightning Protectors

·        Connectors

·        Ethernet Converters

·        Hubs or Switches

·        KVM Switches

·        Lightning Protectors

·        Network Interface Cards

·        Rack Panels

·        Signal Filters

·        Signal Splitters

·        Switch Boxes

·        Tools

·        Weatherproof Enclosures

·        Wireless Adapters

 

No matter what your application is, our product wizards have the power to make your product search much easier and provide you with exact results in a flash.

 

How Data Centers Can Prepare for a Natural Disaster

May 31, 2018 at 8:00 AM

 

We’ve learned that the Cloud isn’t actually floating in the sky, it’s actually thousands of data centers full of servers that store and transmit all of the data we use every day. But what happens when a data center is affected by a natural disaster? In this post, we’ll take a look at what defensive strategies are used to keep our data safe and our cloud aloft, even in the worst circumstances.

 

From blizzards and hurricanes to floods and fires, we seem to have seen a large number of natural disasters in recent history. Fortunately, data centers are prepared with plans to maintain Internet connections and keep your data accessible even in the worst conditions. By having preparedness plans in place, staff willing to stay at their posts and generators to provide power, key data centers can withstand record-breaking hurricanes and even serve as evacuation shelters for citizens and headquarters for law enforcement.

 

Here are some ways data centers can prepare for natural disasters:

 

Make a Plan

The best line of defense is having a good offense - having a plan in place, testing that plan, having a plan B for when that plan fails and then being ready to improvise. When it comes to Mother Nature, even the most prepared have to roll with the punches as things change.

 

Build a Fortress

The ideal structure to house your data center will be impenetrable. That might be too much to ask, but newly constructed buildings can be made to withstand earthquakes, flood, fire or explosion. The addition of shatterproof/explosive-proof glass, reinforced concrete walls and being in a strategic location outside flood zones can also provide an extra layer of protection.

 

These additional precautions might not be possible in older buildings, but there are still steps you can take to help protect your data center:

 

·       Move hardware to a safer location if possible:

    - Ideally, a data center should be away from windows, in the               center of a building and above ground level

    - Higher floors are better, except in an earthquake zone, then               lower floors are safer

·       Install pumps to remove water and generators to keep the pumps          running

·       If there are windows, remove objects that could become airborne

·       Fire extinguishing systems should be checked regularly

 

Redundancy is Key

Hosting all data in one place is opening the door for disaster. A safer option is to host it in multiple locations at redundant centers that can back each other up if disaster strikes one or more facilities. These centers don’t have to be on opposite ends of the world, but putting them in different geographic regions is probably the safest bet. They should be far enough apart that one disaster won’t take them all out.

 

Back That Data Up

If there’s no time to back up data to the Cloud, making a physical backup of the data and sending it with someone who’s evacuating is a good second option.

 

Natural disasters are unavoidable, and the most important asset to keep safe is always the people working inside the data center, but with a plan in place to keep Mother Nature at bay, you might be able to salvage the data center too.

 

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