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Most of the people will be using Android phones when you go to buy mobile, then you must ask shopkeeper about 3g-4g mobile, but many people do not know what is the difference if you want to know about it. Then we will tell you about it
CDMA is a mobile network in which you can communicate through any network, if you want to know more about it, then you will get full information about it in our today's post CDMA Kya Hai, so let's not waste too much time Know about it.
Mobile network is a technology that provides us with wireless voice and data connection. The most popular application of mobile network is mobile phone, with the help of which we can do Internet Access and Voice Calling using these networks if you have Difference Between WCDMA and CDMA In. If you want to know in Hindi, then you must read our post from beginning to end.
The full form of CDMA is Code Division Multiple Access. This is a digital cellular technology that uses the spread spectrum technique. Unlike other technology, GSM which uses TDMA, unlike CDMA, no one is assigned to a specific frequency user. Rather all channels use full available spectrum.
Security is given a lot of attention here. All individual conversations are encoded using a pseudo-random digital sequence. Compared to other digital cellular technology, it provides better data and voice communication, and more and more users can connect at a time. This is a common platform where 3G technologies have been created.
CDMA is a military technology that was first used by the British against Germans during the Second World War. It was used to jam the transmission so that they cannot send static signals. A company named Qualcomm designed the communication chip for CDMA technology. And when this information became public, Qualcomm filed its patent on it and became the first company to commercialize it.
CDMA is also a radio access technology, which allows us to fit multiple calls, connections and data streams on a single radio channel.
CDMA is a code division system, under which the data for each call is encoded with a unique key, then all calls are transmitted at once. The receivers then use this unique key to split the combined signal back into a separate voice.
Of the two systems, code division became more powerful and is considered to be the more flexible technology. However, since GSM began, it evolved quicker than CDMA. CDMA networks are 'stuck' at 3.6Mbps while GSM networks can theoretically transmit at 42Mbps.
If we talk about the features of CDMA technolgy, then there are many features of it which I have mentioned below so that you are easy to understand.
CDMA is a type of multiplexing that enables many signals to occupy a single transmission. This increases the efficiency of using bandwidth completely.
Individual conversations are encoded with the help of a pseudo-random digital sequence.
This technology is used in the ultra-high-frequency (UHF) cellular telephone system, where the band range is from 800MHz to 1.9GHz.
This is a type of technique also called spread spectrum technique that allows many users to occupy a fixed space, band at the same time and frequency simultaneously.
The basic principle of CDMA is that different CDMA codes are used to differentiate different users.
Here when the signal is generated, it is extended over the entire bandwidth. This is done by using a code, also called a Spreading Code.
By using a group of codes that are orthogonal to each other, it is possible that we can recognize a signal that has a constant code, within other orthogonal codes.