Guide to Wireless Communications - Chapter 1

These flashcards cover essential vocabulary and concepts from the lecture on wireless communications technologies.

Wireless Communication

Transmission of digital data over a data network without wires.

Wi-Fi (WLAN)

Wireless local area network that enables access to digital data-enabled devices.

Bluetooth

Wireless technology for short-range communication (up to 33 feet) that aims to replace cables between devices.

Piconet

Automatic connection between Bluetooth devices forming a personal area network (WPAN), allowing up to 8 devices to connect.

ZigBee

Specification based on IEEE 802.15.4, focusing on low power consumption and data transmission at distances up to 50 feet.

RFID

Short-distance technology developed to replace barcodes, used for inventory and luggage tracking.

NFC (Near-field communication)

Works at distances of 2-4 inches, often used in smartphones for tap-to-pay features.

Cellular Networks

Facilitates connectivity outside Wi-Fi range using low-power transmitters.

4G Technology

Enables data speeds exceeding 100 Mbps when stationary and supports IoT applications.

Advantages of Wireless Networking

Includes mobility, lower installation costs, and improved disaster recovery.

Challenges of Wireless Networking

Includes security risks due to unauthorized access and health concerns related to RF exposure.

WiMAX

A fixed broadband wireless technology that enables data speeds up to 75 Mbps and can reach up to 100 Mbps.