802.11a PHY IP Core

802.11a PHY IP Core is a synthesizable HDL implementation of IEEE Standard 802.11a 1999 Edition in VHDL/Verilog. The IEEE 802.11a specification specifies the Physical Layer Entity for an Orthogonal Frequency Division Multiplexing (OFDM) system and the additions that have to be made to the base standard to accommodate the OFDM PHY.

The Wireless LAN system is initially aimed for the 5GHz U-NII bands. The OFDM system provides a wireless LAN with data payload communication capabilities of 6, 9, 12, 18, 24, 36, 48 and 54 Mbps. The support of transmitting and receiving at data rates of 6, 12 and 24 Mbps is mandatory. The system uses 52 subcarriers that are modulated using Binary or Quadrature Phase Shift Keying (BPSK/QPSK), 16-Quadrature Amplitude Modulation (16-QAM) or 64-Quadrature Amplitude Modulation (64-QAM). Forward error correction coding (convolutional coding) is used with a coding rate of 1/2, 2/3 or 3/4.

Technical Specification

• Fully compliant to IEEE 802.11a Standard 1999
• OFDM based technology
• Supports all data rates and modulation schemes: 6, 9, 12, 18, 24, 36, 48 and 54 Mbps (BPSK/QPSK/16-QAM/64-QAM)
• Optimized implementations of Viterbi Decoder and 64-point FFT
• Channel estimation and frequency domain equalization
• Carrier and Symbol Timing Synchronization algorithms
• Optimized interfaces to Ittiam 802.11 MAC solution (customizable to other MAC solutions) and third party RF chipsets
• Fully synthesizable and optimized for low gate count
• Low implementation loss
• Fully verified and real-time tested on a FPGA based development platform
• Considerations for easy ASIC integration
• Delivered Package contains VHDL/Verilog source code, VHDL/Verilog build scripts, synthesis and test scripts, golden test vectors, test benches, simulation and synthesis reports, user and reference manuals
• Validated on Ittiam WLAN Development Platform
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Applications

• SoC designs supporting 802.11 interfaces
• Wireless LAN NIC (Stations)
• Wireless LAN Access Points and Bridges
• Residential Gateways
• Digital Audio / Video Products with Wireless LAN connectivity

Contact

• For details contact mkt@ittiam.com