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Scalable OFDMA Engine for Mobile WiMAX

Home > Support > Reference Designs > Wireless > Scalable OFDMA Engine for Mobile WiMAX

from Altera Corporation

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Please contact your local Altera sales representative for a copy of this reference design. The use of this design is governed by, and subject to, the terms and conditions of the Altera Hardware Reference Design License Agreement.

Overview

You can use the Altera® scalable orthogonal frequency-division multiple access (OFDMA) engine for mobile worldwide interoperability for microwave access (WiMAX) to accelerate the development of mobile broadband wireless networks based on the IEEE 802.16 standard. Scalable OFDMA is a key technology behind mobile WiMAX and is widely regarded as an enabling technology for future broadband wireless protocols, including the 3GPP and 3GPP2 long-term evolution standards. This reference design demonstrates the suitability of Cyclone®, Arria®, and Stratix® series FPGAs for implementing advanced OFDMA symbol-level processing algorithms.

You can use this reference design as a starting point to accelerate designs based on WiMAX or 3GPP long-term evolution protocols. Altera supplies the reference design as clear-text register transfer level (RTL) HDL, including a MATLAB simulation model.

Features

  • Support for 128, 512, 1K, and 2K fast Fourier transform (FFT) sizes to address variable bandwidths from 1.25 to 20 MHz
  • Support for both downlink partial usage of subchannels (PUSCs) and full usage of subchannels (FUSCs) and uplink PUSC mandatory schemes
  • Support for both fixed and variable pilots and runtime configurable cyclic prefix insertion
  • Highly parameterizable design optimized for efficient use of Cyclone, Arria, and Stratix series FPGA resources

Demonstrated Altera Technology

  • Stratix Series FPGAs
  • Arria Series FPGAs
  • Cyclone Series FPGAs
  • DSP Megafunctions

Block Diagram

Figure 1 shows scalable OFDMA reference design blocks.

Figure 1. Scalable OFDMA Reference Design Blocks

Figure 1. Scalable OFDMA Reference Design Blocks

Note:

  1. IFFT = Inverse fast Fourier transform.

Related Links

  • AN 412: A Scalable OFDMA Engine for Mobile WiMAX
  • WiMAX Basestation Solutions

Reference Designs Disclaimer

These reference design illustrations may be used within Altera Corporation devices only and remain the copyrighted property of Altera. They are being provided on an "as-is" basis and as an accommodation, and therefore all warranties, representations, or guarantees of any kind (whether express, implied, or statutory) including, without limitation, warranties of merchantability, non-infringement, or fitness for a particular purpose, are specifically disclaimed. Altera expressly does not recommend, suggest, or require that these examples be used in combination with any other product not provided by Altera.

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