What is it about?
This research focuses on designing a power-efficient modem for wireless communication. A modem is a device that helps transmit and receive digital data over networks, like how your phone connects to the internet. We use a technique called QPSK to send information efficiently and an advanced filter (IIR) to improve signal quality while using less energy. Our modem is built on an FPGA, a flexible and reprogrammable hardware platform. By adding smart power-saving techniques, we reduce energy use by 30%, making it ideal for battery-powered devices like mobile phones and Internet of Things (IoT) gadgets. This work contributes to creating more energy-efficient and reliable wireless communication systems, benefiting applications like smart homes, wearable technology, and remote sensors.
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Why is it important?
This work is important because modern wireless communication systems, such as mobile networks, smart devices, and Internet of Things (IoT) applications, require both high performance and low energy consumption. Many existing modems prioritize speed over power efficiency, which is not ideal for battery-powered devices. Our research introduces a modem that significantly reduces energy consumption—by up to 30%—without compromising performance. What makes this work unique is its combination of QPSK modulation, an efficient filtering technique (IIR), and advanced power-saving methods, all implemented on an FPGA platform. Unlike traditional approaches, our design balances signal quality, energy efficiency, and real-time performance, making it more practical for future wireless applications. This work is timely because as more devices become connected to the internet, optimizing power consumption will be crucial for sustainable technology. Our approach could help extend battery life in mobile devices, improve the efficiency of communication networks, and contribute to greener, more energy-conscious wireless systems.
Perspectives
From my perspective, this research is a step toward more sustainable and efficient wireless communication. As technology advances, the demand for faster, more reliable, and energy-efficient communication systems grows. However, many current designs focus on performance at the cost of power consumption. I believe that by integrating intelligent power-saving techniques with well-established digital signal processing methods, we can create solutions that are not only high-performing but also practical for real-world applications. This project excites me because it bridges theory and application—taking concepts like QPSK modulation and IIR filtering and implementing them on FPGA hardware in a way that directly benefits mobile and IoT devices. The potential impact of reducing power consumption in wireless systems extends beyond just extending battery life; it plays a role in making technology more accessible, affordable, and environmentally friendly. Looking ahead, I see opportunities to build on this foundation by exploring adaptive modulation techniques, integrating AI-driven power management, and optimizing for emerging wireless standards like 5G and beyond. This research is just the beginning of what I hope will be a broader effort toward smarter, more energy-efficient communication systems.
Mr Georgios Giannakopoulos
Read the Original
This page is a summary of: VHDL-Based Low-Power Modem Design Using QPSK and IIR Filters on Xilinx FPGA, February 2025, MDPI AG,
DOI: 10.20944/preprints202502.0761.v1.
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