Electrical parts info aggregation platform information details today? In the past Wi-Fi technology, intercell co-channel interference (Co-Channel Interference,CCI) is another important factor affecting channel capacity. The core of CSMA/CA is to listen before you speak (listen before talk,LBT). The device monitors the wireless channel first and sends data without being occupied. In the case of multi-AP mesh networking (AP,Access Point, wireless access point), the equipment in the cell will listen to the interference signal of the cell adjacent to the same channel, causing the device to mistakenly think that the wireless channel of the cell is being occupied at this time, so stop transmitting. This kind of interference will significantly reduce the network capacity when the network is not optimized or the number of available channels is very small. As shown in the figure below, the four Wi-Fi AP are networked with three channels. However, since there are only three channels available, AP1 and AP2 have to be deployed on the same channel Channel 6, when the signal of AP2 is interference to the user equipment belonging to AP1-Overlapped Basic Service Set (OBSS, overlapping basic service units, which can be understood as overlapping cells with the same frequency). Discover more information at https://www.easybom.com/p/10300019u-jewell-instruments-llc-4827715.
From the perspective of automakers, semiconductors will not be enough until 2024,” read next to the big news in the April 30 edition of the Nikkei News. In this article, Intel CEO Pat Gelsinger said at its financial results conference on April 28 that “due to capacity and production equipment constraints, semiconductor shortages will last until at least 2024. How long will this shortage of semiconductors last? I began to think that, as Intel’s chief executive said, “at least until 2024”, the semiconductor shortage will not disappear, and the semiconductor shortage will last for a long time. In this article, I would like to discuss the basic principles. If we come to a conclusion first, we speculate that there will be a long-term shortage of traditional analog and power semiconductors in the future due to the following reasons.
System on Chip, referred to as Soc, is also a system on a chip. In a narrow sense, it is the chip integration of the core of the information system, which is to integrate the key components of the system on one chip; in a broad sense, SoC is a micro-miniature system. If the central processing unit (CPU) is the brain, then the SoC is It is the system that includes the brain, heart, eyes, and hands. Academic circles at home and abroad generally tend to define SoC as the integration of microprocessor, analog IP core, digital IP core, and memory (or off-chip memory control interface) on a single chip, which is usually customized or oriented for specific purposes. standard product.
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