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IEEE 802.11g-2003
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<a href="/facts/IEEE_802.11/ryEGu6Vq">Wi-Fi</a> generations<ul><li>v</li><li>t</li><li>e</li></ul><table><tbody><tr><th scope="col">Generation</th><th scope="col">Visual</th><th scope="col">IEEEstandard</th><th scope="col">Adopted</th><th scope="col">Maximumlink rate(Mbit/s)</th><th scope="col">Radiofrequency(GHz)</th></tr><tr><th scope="row">—</th><td>—</td><td><a href="/facts/IEEE_802.11_(legacy_mode)/VtAWQ3bQ">802.11</a></td><td>1997</td><td>1–2</td><td>2.4</td></tr><tr><th scope="row">—</th><td>—</td><td><a href="/facts/IEEE_802.11b-1999/WcN5bIIS">802.11b</a></td><td>1999</td><td>1–11</td><td>2.4</td></tr><tr><th scope="row">—</th><td>—</td><td><a href="/facts/IEEE_802.11a-1999/mDQTdNEH">802.11a</a></td><td>1999</td><td rowspan="2">6–54</td><td>5</td></tr><tr><th scope="row">—</th><td>—</td><td>802.11g</td><td>2003</td><td>2.4</td></tr><tr><th scope="row"><a href="/facts/Wi-Fi_4/3gXmkz43">Wi-Fi 4</a></th><td></td><td><a href="/facts/IEEE_802.11n-2009/3gXmkz43">802.11n</a></td><td>2009</td><td>6.5–600</td><td>2.4, 5</td></tr><tr><th scope="row"><a href="/facts/Wi-Fi_5/aTk3NvIk">Wi-Fi 5</a></th><td></td><td><a href="/facts/IEEE_802.11ac-2013/aTk3NvIk">802.11ac</a></td><td>2013</td><td>6.5–6933</td><td>5</td></tr><tr><th scope="row"><a href="/facts/Wi-Fi_6/JElWr80m">Wi-Fi 6</a></th><td rowspan="2"></td><td rowspan="2"><a href="/facts/IEEE_802.11ax-2021/JElWr80m">802.11ax</a></td><td rowspan="2">2021</td><td rowspan="2">0.4–9608</td><td>2.4, 5</td></tr><tr><th scope="row"><a href="/facts/Wi-Fi_6E/JElWr80m">Wi-Fi 6E</a></th><td>6</td></tr><tr><th scope="row"><a href="/facts/Wi-Fi_7/skvRyV3B">Wi-Fi 7</a></th><td></td><td><a href="/facts/IEEE_802.11be/skvRyV3B">802.11be</a></td><td>2024</td><td>0.4–23,059</td><td>2.4, 5, 6</td></tr><tr><th scope="row"><a href="/facts/IEEE_802.11bn/d1EXFHt7">Wi-Fi 8</a></th><td>—</td><td><a href="/facts/IEEE_802.11bn/d1EXFHt7">802.11bn</a></td><td></td><td>100,000</td><td>2.4, 5, 6</td></tr></tbody></table> <p>IEEE 802.11g-2003 or 802.11g is an amendment to the IEEE 802.11 specification that operates in the 2.4 <a href="/facts/GHz/6Wshj5qm">GHz</a> microwave band. The standard has extended link rate to up to 54 <a href="/facts/Mbit/s/Nv9VoT7T">Mbit/s</a> using the same 20 MHz <a href="/facts/Bandwidth_(computing)/lY6Tb4gX">bandwidth</a> as <a href="/facts/802.11b_channels/CLXXhAQ3">802.11b</a> uses to achieve 11 Mbit/s. This specification, under the marketing name of <a href="/facts/Wi%E2%80%91Fi/u94quCsx">Wi‑Fi</a>, has been implemented all over the world. The 802.11g protocol is now Clause 19 of the published <a href="/facts/IEEE_802.11-2007/ryEGu6Vq">IEEE 802.11-2007</a> standard, and Clause 19 of the published <a href="/facts/IEEE_802.11/ryEGu6Vq">IEEE 802.11-2012</a> standard. </p><p><a href="/facts/802.11/ryEGu6Vq">802.11</a> is a set of <a href="/facts/IEEE/UddC4pUW">IEEE</a> standards that govern wireless networking transmission methods. They are commonly used today in their <a href="/facts/802.11a/mDQTdNEH">802.11a</a>, <a href="/facts/802.11b/WcN5bIIS">802.11b</a>, 802.11g, <a href="/facts/802.11n/3gXmkz43">802.11n</a>, <a href="/facts/802.11ac/aTk3NvIk">802.11ac</a> and <a href="/facts/802.11ax/JElWr80m">802.11ax</a> versions to provide wireless connectivity in the home, office and some commercial establishments. </p><p>802.11g is fully backward compatible with 802.11b, but coexistence of the two methods creates a significant performance penalty. </p>