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Digital Front-End Sensor for Cognitive Radio Applications

Imec has unveiled a digital front-end unit for cost-effective and energy-efficient spectrum detection suitable for cognitive radios and networks.

The increased use of broadband communication along with enhanced need for data rates has in turn enhanced spectrum scarcity. In licensed bands, spectrum access permits personal mobile terminals to use a wireless connection. In unlicensed cases such as the crammed 2.4 GHz band, it enhances the security of products where uninterrupted connectivity is required like in the case of surveillance systems, or for comfort in applications such as wireless conferencing and hearing aids. It also enhances connectivity when used in networks that could cause interruptions.

The product is a digital solution for various applications. The chip with a dedicated ASIP is suitable for both flexible synchronization and spectrum sensing for high-throughput WLAN cellular and digital broadcasting standards. It is connected to an analog reconfigurable radio chip and programmable digital base band platform for 4G seamless connectivity and facilitates multimode communication.


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