Introduction to Wireless Local Area Network

This chapter introduces the reader to the fascinating topic of Wireless Local Area NetworksWireless Local Area Network (WLANs). The chapter begins by demystifying WLAN principles and goes through its historical evolution, tracing its development from the pioneering IEEE 802.11IEEE 802.11 standard to the latest advancements likeWi-Fi Wi-Fi 6E. This chapter contrasts and compares WLAN’s progress with cellular generationsCellular generations, highlighting their distinct roles in shaping our connected world. It then explores the hidden mechanics of WLAN communication, unveiling the role of transceiversTransceiver and antennasAntenna, and how their characteristics influence range and functionality. Finally, the chapter looks into the future, where promising technologies like 802.11ax promise802.11 transformative speeds and low latency, opening doors to immersive experiences like VR and AR. By the end of this chapter, the reader will gain a comprehensive understanding of WLAN technology, its historical journey, and its exciting future potential.