WLAN vs. Ethernet LAN: Key Differences Explained

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This article clarifies the differences between WLAN (Wireless LAN) and Ethernet LAN. Understanding these distinctions is crucial for making informed decisions about network infrastructure.

Figure 1 illustrates a typical WLAN or wireless LAN network. It operates on radio frequencies of 2.4 GHz or 5.8 GHz, or both, according to IEEE 802.11 specifications. Various WLAN versions exist, including 802.11a, 11b, 11g, 11n, 11ac, and 11ad. The latest versions use MIMO (multiple-input and multiple-output) antenna technologies to support higher data rates.

wlan network

Figure 2 depicts an Ethernet LAN network. Different Ethernet types exist, such as Ethernet, Fast Ethernet, and Gigabit Ethernet.

Ethernet LAN network

Core Differences Between WLAN and Ethernet LAN

Here’s a summary of the main differences between WLAN and Ethernet LAN:

FeatureWLANEthernet LAN
StandardsBased on the IEEE 802.11 family of standards.Based on IEEE 802.3 standards.
TransmissionUses radio frequency waves to transmit data.Uses electrical signals to transmit data.
MediumRadio frequency waves travel through the air, eliminating the need for physical connections.Electrical signals flow through cables, requiring wired connections.
DuplexTypically uses half-duplex communication.Supports full-duplex communication when a switch connects a single device instead of a hub.
InterferenceSusceptible to various types of interference during transmission.Less susceptible to interference as electrical signals travel through cables.
Collision Avoidance/DetectionUses CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) to avoid collisions.Uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection) to detect collisions.
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