802.11b

Features

• Full slate of 802.11b Modulators/Demodulators
• Long and Short PPDU format preamble and header
• Channel agility through Frequency Hop (FH) scheduling
• PLCP Long/Short Scrambler for generating synchronization field
• CRC16 CCITT Encoder/checker for PLCP header
• Full 802.11b Packet Generation

Overview

The complete WLAN design solution is the WiFi 802.11b Library, together with the Communication Design Suite and SystemVue™.

The tokens available in the 802.11b Library represent functional blocks for each of the WiFi modulation schemes. The library provides efficient generation of the 802.11 frame sequences including the Cyclic Redundancy Check (CRC) encoder and decoder, the Scrambler/Descrambler, the Frequency Hop (FH) algorithm generator, and a complete packet generator.

SystemVue™ is a time based simulation tool designed for multirate communication simulations. This is the ideal environment to develop your Wireless Local Area Network (WLAN) Medium Access Control (MAC) and Physical Layer (PHY) systems adhering to the IEEE Standard 802.11b-1999 specifications.

The example above demonstrates the modulator/demodulator pair of a 2Mbps QPSK system. The plot identifies the realization of the Barker code for this system.

Library Tokens

• Complementary Code Keying (CCK) 5.5 Mbps Modulator
• CCK 5.5 Mbps Demodulator
• CCK 11 Mbps Modulator
• CCK 11 Mbps Demodulator
• Differential Binary Phase Shift Keying (DBPSK) 1 Mbps Modulator
• DBPSK 1 Mbps Demodulator
• Differential Quadrature Phase Shift Keying (DQPSK) 2 Mbps Modulator
• DQPSK 2 Mbps Demodulator
• Packet Binary Convolutional Coding (PBCC) 5.5 Mbps Modulator
• PBCC 5.5 Mbps Demodulator
• PBCC 11 Mbps Modulator
• PBCC 11 Mbps Demodulator
• CRC16 CCITT Encoder for PLCP Header
• CRC16 CCITT Decoder for PLCP Header
• Scrambler
• Descrambler
• Frequency Hop Scheduler
• PPDU Packet Generator
• PPDU Frame Unpacker

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