Networking: Cabled and Wireless Wi-Fi Networks

The 802.11ac wireless  standard, Powerline Ethernet and Wi-Fi mains networks and Bluetooth wireless connectivity

Note that there is a new Wi-Fi standard – 802.11ac – which uses the 5GHz band for a theoretical data throughput of 1 gigabit per second (128MB per second). 802.11ac dual-band routers and wireless adapters are available that can use both the 2.4GHz and 5GHz bands, switching between them to get the best connection. By January 2016, the 802.11ac standard had not been ratified by the, but, as is usually the case, the network-equipment manufacturers have brought out draft equipment that supports the standard as they expect that its ratified form will end up being.

Gigabit Wireless? Five 802.11ac Routers, Benchmarked [January 2013] –

http://www.tomshardware.co.uk/wi-fi-802.11ac-router,review-32609.html

Ethernet and Wi-Fi Powerline networks

Information is provided in this section on routers (broadband modem routers and dedicated routers) that can become the centre of a combined cabled Ethernet and a wireless Wi-Fi home network and other types of networks, such as cable-based networks that use Cat5/Cat6 network cables and Network Interface Cards and Virtual Private Networking (VPN) and Powerline networking, which uses the electricity mains cabling and connection points within a home or building instead of network cables to create a wired network that can be used to extend a cabled or wireless network depending on the Powerline adapters that are used – Ethernet adapter or Wi-Fi adapters. Ethernet cables are connected to the Powerline adapters (marketed as HomePlug) from network interface cards (NICs) on the computers in the network. Powerline adapters can have built-in Wi-Fi as well as an Ethernet cable connection point, enabling a wireless network to be extended using Powerline. The following two videos show how easy that is to achieve.

NETGEAR Powerline White Board Video –

https://www.youtube.com/watch?v=GKy90rPLo6k

Extending you wireless network using Powerline –

https://www.youtube.com/watch?v=3bR_htbGd28

Throughput of a home network using Powerline network adapters doubled by using a Gigabit Ethernet router

I use Powerline network adapters for my home network. According to the configuration software, my Netgear Powerline AV 200 Adapter Kit only provided 85Mbps (megabits-per-second) throughput with an older 10/100 router, so I purchased a 10/100/1000 Gigabit Ethernet router. The Powerline (HomePlug) adapters connected at the higher throughput immediately, providing 195Mbps between the two adapters.

However, you should note that no matter how fast the connections transfer data between the computers on a home network, if you have a slow broadband connection, it will won’t work any faster than the service that your Internet Service Provider (ISP) provides. If, say, your Internet connection speed is approximately 6.5Mbps, that’s what it will remain no matter how fast your network itself can transfer data from one computer to another.

The slowest and least-expensive networking equipment – 10.0Mbps Ethernet and 11.0Mbps 802.11b Wi-Fi can handle a slower 6.5Mbps inbound data stream. An 802.11g, 54.0Mbps Wi-Fi network is over 8 times faster than a 6.5Mbps broadband connection. Gigabit Ethernet and 802.11n Wi-Fi networking is 15 times faster a 6.5Mbps connection.

Bluetooth wireless connectivity

Bluetooth technology allows wireless communication between devices such as gaming consoles, printers, keyboards, mice, USB dongles, mobile phone headsets, etc. It can connect several devices, interference-free.

Bluetooth has a relatively short working range, which makes it less susceptible to electronic interference than is the case with 802.11 wireless systems.

Bluetooth wireless protocols have improved since first becoming available. It is now an ideal way of connecting small devices. By 2014, the Bluetooth protocol was up to version 4.2.

Bluetooth – https://en.wikipedia.org/wiki/Bluetooth

Bluetooth Devices –

https://www.bluetooth.com/what-is-bluetooth-technology/bluetooth-devices

Now, it is faster, provides improved security, increased range (up to 300 feet) and is even powerful enough to handle streaming music and HD video. Version 4.0 was released in 2010. It provides support for both high-performance and low-power applications. Bluetooth can be added to a PC via simple USB adapters.

Windows 8.1 and Windows 10 provide built-in support for Bluetooth. It can be added to earlier versions of Windows, which don’t provide native support for it, by making use of a cheap USB/Bluetooth adapter. Here is an article on how to add a Bluetooth device to Windows Vista and Windows 7, which differ from each other:

http://www.windowsnetworking.com/articles-tutorials/windows-7/…

Why isn’t Windows finding my Bluetooth or other wireless device? [Windows 8.1]

http://windows.microsoft.com/en-GB/windows-8/why-isnt-windows-finding-device

The following click path gets you to the Bluetooth settings in Windows 10 – Start => Settings => Devices => Bluetooth.

Windows 10 Makes Bluetooth Smart Magic –

http://blog.bluetooth.com/windows-10-makes-bluetooth-smart-magic/

For less than U.S. $20, tiny, state-of-the-art Bluetooth 4.0 adapters, made by manufacturers such as IOGEAR and Medialink, are available that are backward-compatible with previous versions of Bluetooth. Moreover, the adapters can be upgraded to the latest version of Bluetooth by upgrading their firmware if it is made available from the device-manufacturer’s website.

Bluetooth security has been improved a great deal since Bluetooth first became available, but it is still a cause of concern.

How Bluetooth Works – Security –

http://electronics.howstuffworks.com/bluetooth4.htm

Bluetooth Connectivity Threatens Your Security [2013] –

Bluetooth Connectivity Threatens Your Security

NEXT PAGEPCI and PCI Express Network Interface Cards (NICs), Powerline adapters & USB Wi-Fi dongles

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