IEEE 802.11 WLAN Operations

Course Summary

This course provides a comprehensive understanding into the workings of the popular IEEE 802..11 WLAN standard. We begin with introduction to Wireless LAN fundamentals including Nomenclature and Network Operations. Modulation Methods used by various IEEE 802.11 standards are discussed. Network Operations for 802.11a, 802.11b. 802.11g and 802.11n proposals are examined in detail. IEEE 802.11 MAC and PHY layer specifications are discussed in detail. An analysis of 802.11 security mechanisms and coexistence issues along with solutions for minimizing interference are looked at.

Course Details

Course ID:SOL-WN-163
Course Duration:32 Hours
Delivery Options
PREREQUISITES: Fundamental understanding of Computer Networking, Operating Systems, Basic Probability Theory, Wireless Communication Principles.

Course Outline

INTRODUCTION
IEEE 802 Protocol Tree, Overview of 802.11, The Wi-Fi Alliance and IEEE 802.11 task groups, 802.11 Nomenclature and Design, 802.11 Network Operations, Mobility Support.
802.11 PHYSICAL LAYER (PHY) OPERATIONS
Physical Layer Architecture, Radio Link and Performance, 802.11 PHY Data Rates, 802.11 Channel sets and modulation, FH, DS, and HR/DS, Orthogonal Frequency Division Multiplexing (OFDM), IEEE 802.11a OFDM, PLCP, PMD and OFDM PHY Characteristics.
802.11 MEDIUM ACCESS CONTROL (MAC) OPERATIONS
Carrier Sense Multiple Access (CSMA) operation and Throughput, Contention-Based Access Using the Distributed coordination function (DCF) operation, Point coordination function (PCF) operation, MAC frame formats, Throughput and frame transmission times, MAC Access Modes and Timing, Fragmentation and Reassembly, Encapsulation of Higher-Layer Protocols Within 802.11.
802.11 SECURITY AND ENHANCEMENTS
Types of security threats, Operation of 802.11 Wired Equivalent Privacy (WEP), 802.11 WEP weaknesses, Temporal key integrity protocol (TKIP), Advanced encryption standard (AES), 802.1X port-based network access control, IEEE 802.11e Quality of Service, IEEE 802.11n higher data rates.
COEXISTENCE
Consequences of interference, Wi-Fi deployment for interference-free operations, Coexisting with other wireless networks, Collocated Wi-Fi and Bluetooth nodes, Microwave ovens, Operation aboard commercial aircraft.
CORE TECHNOLOGY AREAS COVERED
WLAN Fundamentals, Wi-Fi, IEEE 802.11a/b/g/n, WLAN Security.