Our idea consists in the exploitation of the partial channel reciprocity of FDD and the angle-delay-Doppler channel structure. More precisely, the base station (BS) estimates the angle-delay-Doppler ...

The refrigeration and air conditioning compressors market is expected to expand at a compound annual growth rate (CAGR) of 2.9% from USD 37.3 billion in 2025 to USD 49.6 billion by 2035. The expansion ...

Some engines use a spark to ignite their fuel, and others rely on compression. What does all of that mean? And how do the two ...