How to Maximize System Performance with Advanced Wired Communication Technology
Planning for Future Bandwidth Growth in Wired Communication Systems
When selecting the ideal wired communication technology for your system, the right solution goes far beyond just covering the necessary range. How much bandwidth flexibility do you need to future-proof your system? Future bandwidth demands are constantly evolving as applications become more data-intensive. Will your system be able to handle increased data loads in the coming years?
To address these concerns, Nessum’s 4th Generation Technology introduces a game-changing solution: Flexible Channel OFDM. This cutting-edge technology offers a broad selection of channels, enabling you to choose from options that provide up to 8 times the range and 64 times faster PHY (Physical Layer) rates. With this unprecedented flexibility, you can fine-tune your network’s performance, ensuring it’s always optimized for your unique needs.
Understanding the Cable Loss and Frequency Range
In any wired communication system, cable loss plays a crucial role in signal performance. In the MHz frequency range, the skin effect becomes dominant, causing signal attenuation that increases with frequency. Essentially, as the frequency rises, the signal strength decreases, typically in proportion to the square root of the frequency.
For example, reducing the frequency band by a factor of 100 can increase the communication range by up to 10 times. This understanding of cable loss is crucial when selecting the ideal frequency band for your network, allowing you to balance performance and range based on your needs.
The Challenge with Traditional Wired Communication Technologies
Traditional OFDM-based technologies—such as narrowband PLC (Power Line Communication) (e.g., G3-PLC) and broadband PLC (e.g., Homeplug AV2)—often present difficult trade-offs. These systems can have frequency differences of up to 100 times and PHY rate variations of up to 1000 times, forcing users to make a tough decision between range and speed. For example, if a broadband PLC system cannot provide sufficient range, the only option is to switch to a much slower narrowband PLC, which significantly reduces data transmission rates. This forces a trade-off between coverage and performance, making it difficult to optimize the system.
How Flexible Channel OFDM Works
Nessum’s Flexible Channel OFDM solves this issue by offering a wide range of frequency options, giving you the flexibility to choose between low-frequency bands for extended range or high-frequency bands for faster speeds. This versatility ensures you can find the perfect balance between range and performance for your system. Here’s how it works:
- High-frequency band (CID x-8): This band uses frequencies from 4 MHz to 56 MHz, supporting high-speed communication with PHY rates (~500 Mbps), but with a shorter range.
- Low-frequency band (CID x-24): Operating between 62.5 kHz and 875 kHz, this band offers a significantly longer range, though with a slower PHY rate (~7.8 Mbps).
For example, if CID x-8 provides a 1 km range, the following channels offer the corresponding distances:
- CID x-1: 1.4 km
- CID x-2: 2 km
- CID x-24: 8 km
In this case, if your system needs a 2 km range, selecting CID x-2 gives you the ideal combination of range and speed, without the need to compromise.
The Power of Flexibility
Nessum’s Flexible Channel OFDM technology offers a level of flexibility that traditional wired communication technologies simply can’t match. Whether you need to extend range for remote locations or push the limits of speed for high-demand applications, this technology gives you the freedom to choose the optimal channel for your system’s needs.
Conclusion
With Nessum’s 4th Generation Flexible Channel OFDM technology, you no longer need to choose between range and performance. The broad selection of channels allows you to design a wired communication system that is both highly efficient and adaptable to future demands. By selecting the right channel for your network, you can maximize system performance today and ensure it remains scalable for the future.
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About the Author
Kengo Tamukai is a senior engineer specializing in wired and wireless communication technologies. With over 20 years of experience in LSI design, system architecture, and technical marketing, his expertise spans SoC design, OFDM-based technologies, and hybrid communication systems, driving innovation in modern digital networks.
