802.11g

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What is IEEE 802.11g?

IEEE 802.11g is a Wi-Fi standard that operates in the 2.4 GHz band and supports data rates up to 54 Mbps.

When was 802.11g introduced?

It was introduced in 2003 to improve speed and maintain compatibility with 802.11b devices.

What frequency band does 802.11g use?

802.11g operates exclusively in the 2.4 GHz frequency band.

What is the maximum data rate of 802.11g?

It supports a maximum theoretical data rate of 54 Mbps.

Is 802.11g backward compatible?

Yes, it is backward compatible with 802.11b, allowing devices of both standards to communicate.

What modulation technique does 802.11g use?

It uses Orthogonal Frequency Division Multiplexing (OFDM) for higher data rates and DSSS for backward compatibility.

What is the typical range of 802.11g?

It offers a range of about 100 to 150 feet indoors and up to 300 feet outdoors under ideal conditions.

How does 802.11g differ from 802.11b?

802.11g supports faster data rates (up to 54 Mbps vs. 11 Mbps) while operating in the same 2.4 GHz band.

Which OSI layer does 802.11g operate on?

It operates at the Data Link Layer (Layer 2), specifically the MAC and Physical layers.

Does 802.11g support encryption?

Yes, it supports WEP, WPA, and WPA2 encryption standards for network security.

Is 802.11g suitable for video streaming?

Yes, its higher data rates compared to 802.11b make it better suited for video and multimedia streaming.

What devices support 802.11g?

Most Wi-Fi-enabled devices manufactured after 2003 support 802.11g or later standards.

Can 802.11g coexist with 802.11b devices on the same network?

Yes, but the network speed may slow down to accommodate 802.11b devices.

What kind of antenna does 802.11g use?

It can use omnidirectional or directional antennas depending on the deployment.

What transport protocols does 802.11g support?

802.11g supports all IP-based transport protocols like TCP, UDP, and others over Wi-Fi.

Is 802.11g affected by interference?

Yes, operating in the 2.4 GHz band makes it susceptible to interference from Bluetooth devices, microwaves, and cordless phones.

Is 802.11g compatible with modern Wi-Fi routers?

Yes, most modern routers support legacy 802.11g devices, though they typically operate on newer standards by default.

What is the difference between 802.11g and 802.11n?

802.11n offers higher speeds, uses both 2.4 GHz and 5 GHz bands, and supports MIMO technology, unlike 802.11g.

Does 802.11g support QoS features?

Basic QoS is supported, but advanced QoS mechanisms are part of later standards like 802.11e.

Topics in this section,

  • In this section, you are going to learn

  • Terminology

  • Version Info

  • rfc details

  • setup

  • setup

  • mac features

  • Medium Access Functions and their inner working

  • Supported Frequency Bands in 802.11g

  • List of Physical Features

  • Power Saving Mechanisms in IEEE 802.11g

  • Interoperability Mechanisms in IEEE 802.11g

  • End-User Products that support 802.11g

  • Protocol Packet Details

  • Basic Features

  • Reference links