The acknowledgement function is used in the automatic repeat request ( ARQ ) function.
2.
This is known as hybrid automatic repeat request ( HARQ ), which is a combination of ARQ and error-correction coding.
3.
In error detection mode, the code word will be dropped; in automatic repeat request mode, the receiver requests that the original data be resent.
4.
It is sometimes higher than the physical layer data rate due to V . 44 data compression, and sometimes lower due to bit-errors and automatic repeat request retransmissions.
5.
There is no need for a separate entry with hyphen ( Hybrid automatic repeat-request ) that just redirects to the main page without hyphen ( Hybrid automatic repeat request ).
6.
For example, having knowledge of the current physical state will help a channel allocation scheme or automatic repeat request ( ARQ ) strategy at the MAC layer in optimizing tradeoffs and achieving throughput maximization.
7.
An automatic repeat request ( ARQ ) algorithm, used for error correction, in which a negative acknowledgement ( NAK ) causes retransmission of the word in error as well as the previous N 1 words.
8.
In the IEEE 802 reference model of computer networking, the "'logical link control "'( "'LLC "') flow control and automatic repeat request ( ARQ ) error management mechanisms.
9.
Finally, some transport layer protocols, for example TCP, but not UDP, provide end-to-end reliable communication, i . e . error recovery by means of error detecting code and automatic repeat request ( ARQ ) protocol.
10.
HSDPA is based on shared channel transmission and its key features are shared channel and multi-code transmission, higher-order modulation, short transmission time interval ( TTI ), fast link adaptation and scheduling along with fast hybrid automatic repeat request ( HARQ ).
मोबाइल