Using a spread spectrum can also make the signal more secure and stop it from being intercepted. Spread spectrum uses, often called spread spectrum technique, are primarily concerned with security and interference. Typically, when a signal is generated it needs to stay in the same frequency range...
Spread spectrum is a technique used for transmitting radio or telecommunications signals. The term refers to the practice of spreading the transmitted signal to occupy the frequency spectrum available for transmission. Advertisements The advantages of spectrum spreading include noise reduction, security and...
The idea of spread spectrum communications originated in1900whenNikola Teslaproposed a similar technique called frequency hopping. Commercial use of spread spectrum began in the 1980s, and theFCC(Federal Communications Commission) allowed for unlicensed use of spread spectrum communications starting in1985...
A less popular form of Steganography is through letter or word substitution. The sender hides the text by distributing it inside a longer text and placing the text at specific intervals, thus forming a pattern that needs to be decoded. It is a fairly simple technique. One can also hide an ...
Direct-sequence spread spectrum (DSSS) DSSS is a related technique to FHSS. It also spreads a transmitted signal across a wide channel, but it does so all at once instead of in discrete bursts separated by hops. It can achieve higher throughput, but DSSS systems are more susceptible to inte...
What Is LoRa®?LoRa (short for long range) is a spread spectrum modulation technique derived from chirp spread spectrum (CSS) technology. Semtech's LoRa is a long range, low power wireless platform that has become the de facto wireless platform of Internet of Things (IoT). LoRa devices ...
DSSS is a spread spectrum modulation technique used for digital signal transmission over airwaves. It was originally developed for military use, and employed difficult-to-detect wideband signals to resist jamming attempts. It is also being developed for commercial purposes in local and wireless networks...
CDMA(Code Division Multiple Access) technology is based on a spread spectrum technique, allowing multiple users to access the same frequency at the same time. In contrast,GSM(Global System for Mobile Communications) usesTime Division Multiple Access (TDMA)technology, where each user has their own ...
CDMA uses a “spread-spectrum” technique whereby electromagnetic energy is spread to allow for a signal with a widerbandwidth. This approach allows several people on different cell phones to be “multiplexed” over the same channel to share a bandwidth of frequencies. With CDMA technology, data ...
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