Search results
Results from the WOW.Com Content Network
Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency carrier wave.The modulation is accomplished by varying the sine and cosine inputs at a precise time.
In cryptography, a pre-shared key (PSK) is a shared secret which was previously shared between the two parties using some secure channel before it needs to be used. [ 1 ] Key
TLS-PSK uses symmetric keys, shared in advance among the communicating parties, to establish a TLS connection. There are several reasons to use PSKs: Using pre-shared keys can, depending on the ciphersuite, avoid the need for public key operations. This is useful if TLS is used in performance-constrained environments with limited CPU power.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Help; Learn to edit; Community portal; Recent changes; Upload file
Examples of these are quadrature phase shift keying and its generalisation as m-ary quadrature amplitude modulation (m-QAM). Because existing computers and automation systems are based on binary logic most of the modulations have an order which is a power of two: 2, 4, 8, 16, etc.
This example is the most simple illustration, and a first time user should the concept through this example. Now in the =introduction= mention the need for modulation techniques, and ASK, FSK. Explain about NRZ signals which are used. Now create a new section =types of= . Under this include BPSK, DPSK, DEPSK, QPSK, OQPSK, M-ary PSK, MSK etc.
Also referred to as WPA-PSK (pre-shared key) mode, this is designed for home, small office and basic uses and does not require an authentication server. [24] Each wireless network device encrypts the network traffic by deriving its 128-bit encryption key from a 256-bit shared key.
Download as PDF; Printable version; In other projects ... Examples of simple channel models used in information theory are: ... 8-PSK and 16-PSK, ...