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.
Figure 2 depicts an Ethernet LAN network. Different Ethernet types exist, such as Ethernet, Fast Ethernet, and Gigabit Ethernet.
Core Differences Between WLAN and Ethernet LAN
Here’s a summary of the main differences between WLAN and Ethernet LAN:
Feature | WLAN | Ethernet LAN |
---|---|---|
Standards | Based on the IEEE 802.11 family of standards. | Based on IEEE 802.3 standards. |
Transmission | Uses radio frequency waves to transmit data. | Uses electrical signals to transmit data. |
Medium | Radio frequency waves travel through the air, eliminating the need for physical connections. | Electrical signals flow through cables, requiring wired connections. |
Duplex | Typically uses half-duplex communication. | Supports full-duplex communication when a switch connects a single device instead of a hub. |
Interference | Susceptible to various types of interference during transmission. | Less susceptible to interference as electrical signals travel through cables. |
Collision Avoidance/Detection | Uses 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. |