M’ary Quadrature Amplitude Modulator IP in VHDL, FPGA and SDR

Overview

We present an implementation of Quadrature Amplitude Modulation (QAM) signal modulators using Field Programmable Gate Array (FPGA).

The modulator is targeted at the low-level "RTL based" implementation with the building blocks of the QAM modulator. To provide a flexible way of testing the transmission and modulation properties later in real-time, a higher level hierarchical implementation based on GNURadio was provided to investigate future application of offloading QAM modulation into FPGA, to accelerate the development, testing, and verification of SDR (Software-Defined Radio) application in real-time environment.

Key Features

Fully verified and synthesized with source code and netlist, integration guide, license and manual

Benefits

Each system module will be presented, and verified with testbenches along with Matlab scripts to verify the functional behavior of the QAM waveform including the constellation diagram and the upconverted passband waveform transition, then with respect to all system components. In this system no target board for implementation has been specified, but it addresses only to the Zynq-7000 FPGA.

Block Diagram

Applications

Quadrature modulation for wireless communications.

Deliverables

Soft (VHDL codes) as well as firmware IP in form of synthesized netlists
Simulation, testing, synthesizing scripts and reports
Integration guides and user manual
License

Technical Specifications

Maturity

Pre-Silicon

Availability

Soft IP, Netlist IP

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