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In coding theory and information theory, a binary erasure channel (BEC) is a communications channel model. A transmitter sends a bit (a zero or a one), and the receiver either receives the bit correctly, or with some probability P e {\displaystyle P_{e}} receives a message that the bit was not received ("erased") .
The packet erasure channel is a communication channel model where sequential packets are either received or lost (at a known location). This channel model is closely related to the binary erasure channel .
A deletion channel is a communications channel model used in coding theory and information theory. In this model, a transmitter sends a bit (a zero or a one), and the receiver either receives the bit (with probability p {\displaystyle p} ) or does not receive anything without being notified that the bit was dropped (with probability 1 − p ...
Nepal Telecommunications Authority (NTA) is the regulatory body of telecommunications in the country. According to the latest figures, eight companies have been licensed to operate voice-based telephony services, out of which five are heavily invested by foreign companies. [ 2 ]
Download QR code; Print/export ... This is a list of all Media of Nepal which includes radio, ... Nepal Television; News 24; O. Online Khabar; R.
The iPhone App Store opened on July 10, 2008. [10] [11] [12] On July 11, the iPhone 3G was released and came pre-loaded with support for App Store. [13] [14] Initially apps could be free or paid, but then in 2009, Apple added the ability to add in-app purchases [15] which quickly became the dominant way to monetize apps, especially games.
Nepal Telecom is the sole provider of fixed-line, ISDN, and leased-line services in Nepal. Following the entry of Ncell (formerly Mero Mobile) into Nepal's telecommunications industry in 2005, Nepal Telecom was no longer the exclusive provider of GSM mobile services. With more than 5,400 employees, it is one of the largest corporations in Nepal.
If the channel characteristics cannot be determined, or are highly variable, an error-detection scheme may be combined with a system for retransmissions of erroneous data. This is known as automatic repeat request (ARQ), and is most notably used in the Internet.