Computer Networking Beginners Guide: What Is The Computer Network And How To Learn It In a Simple Way? The Easy Step By Step Guide For Beginners (programming Book 3) by Wired Tim

Author:Wired, Tim [Wired, Tim]
Language: eng
Format: epub
Published: 2019-11-09T16:00:00+00:00

Wireless LAN (Local Area Network)

This is a network where there are two or more computers or devices connected to the network and it only covers a limited area, for example a home or small business. The NIC is sed in this type of network, we often call this the Peer-to-Peer Network (P2P). Another form of this is an ad-hoc network which is used in temporary manner.

Unlike using switch in a wired network, in the WLAN setup we use a device called an access point. This is a central device from which the RF signal is being generated. WLAN which uses access point are called Basic Service Set (BSS), it acts as the coordinator between different devices within the network.

Wi-Fi

RF signal Frequency: 2.4 GHz or 5 GHz

Range: 100 meters

Wi-Fi products are certified and tested by the Wi-Fi Alliance

Wireless MAN (Wireless Metropolitan Area Network)

Collected unit of many WLANs located at various places

Uses WIMAX technology (Worldwide Interoperability for Microwave Access) which is controlled by WiMAX Forum

Maximum Speed: 1 Gbits/ sec

IEEE 802.16 Standard

WWAN (Wireless Wide Area Network)

This is an extensive network that has been distributed across an immense amount of space. It connects cities together. Mobile phones use WWAN to make communication possible.

The technology in WWAN are subdivided in generations: 2G, 3G, and 4G

Most analog devices are utilizing this technology

· Examples of 2g

- General Packet Radio Service (GPRS)

- Enhanced Data rates for GSM Evolution (EDGE)

· Examples of 3G (third generation technologies)

- Code Division Multiple Access (CDMA)

- Universal Mobile Telecommunication System (UMTS)

- High Speed Packet Access (HSPA)

- Evolved High Speed Packet Access (HSPA+)

· 4G (High Speed Network accessibility can be achieved with this technology)

- Long Term Evolution (LTE)

- Voice Over Long-Term Evolution (VoLTE)

Time Evolution

In 1G in the 2980s, the only single voice was going from one device to another device. The analog protocol was being utilized during this period. In mid 1980s 2G network has introduced, with it came voice and text capabilities. Both voice and text messages are going from one device to another device with the use of digital standards. The speed from 1G (2.4 kbps) has increased when 2G was invented (16 kbps). In 2003, 3G has evolved from voice and text, with now including data. It uses the multimedia technologies and has a speed of up to 2 Mb per second. In 2009 4G was introduced to the market, this technology allows voice to go through data. IP protocol is utilized, and the speed can reach up to 100 Mb per second. 5G technology is the next one to hit the market soon, it will have more bandwidth mobility which a key factor for it would be to succeed.

WPAN (Wireless Personal Area Network)

This kind of network is used smaller distance

Technologies that are mostly used for WPAN are Bluetooth and Infrared Data Association

Bluetooth

· Uses ISM band of 2.4 GHz

· Speed of up to 721Kbps

· Range goes anywhere between 10 to 100 meters

If you are using Bluetooth technology, let’s say in your headset or keyboard or speakers and it is connected to your

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