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Number of incorrect bits transmitted
bit synchronization errors. The bit error rate (BER) is the number of bit errors per unit time. The bit error ratio (also BER) is the number of bit errors
Bit_error_rate
Topics referred to by the same term
Error rate, meaning the frequency of errors, can have the following uses: Bayes error rate Bit error rate Per-comparison error rate Residual bit error
Error_rate
Scheme for controlling errors in data over noisy communication channels
analog signal corrupted by noise. Many FEC decoders can also generate a bit-error rate (BER) signal which can be used as feedback to fine-tune the analog receiving
Error_correction_code
Digital transmission error measurement
digital transmission, the Viterbi error rate, also known as the Viterbi bit error rate (VBER), is a measurement of error in the transmission of digital Information
Viterbi_error_rate
Quality metric in digital transmission
The residual bit error rate (RBER) is a receive quality metric in digital transmission, one of several used to quantify the accuracy of the received data
Residual_bit_error_rate
Information transmission rate expressed in bits per second
computing, bit rate (bitrate or as a variable R) is the number of bits that are conveyed or processed per unit of time. The bit rate is expressed as bits per
Bit_rate
Type of data encoding
of two. For determining error-rates mathematically, some definitions will be needed: E b {\displaystyle E_{b}} , energy per bit E s = n E b {\displaystyle
Phase-shift_keying
Rate of modulation of a digital signal
represent or convey one or several bits of data. The symbol rate is related to the gross bit rate, expressed in bits per second. A symbol may be described
Symbol_rate
Non-redundant proportion of an error correction code data stream
the gross bit rate or data signalling rate (inclusive of redundant error coding), the net bit rate (the useful bit rate exclusive of error correction
Code_rate
Family of linear error-correcting codes
correct errors, and can detect only an odd number of bits in error. Hamming codes are perfect codes, that is, they achieve the highest possible rate for codes
Hamming_code
Normalized signal-to-noise ratio measure
known as the "SNR per bit". It is especially useful when comparing the bit error rate (BER) performance of different digital modulation schemes without taking
Eb/N0
Self-correcting computer data storage
Error correction code memory (ECC memory) is a type of computer data storage that uses an error correction code (ECC) to detect and correct n-bit data
ECC_memory
Metric for digital communication link
user-visible error rate than the raw bit error rate. For many modern packet-switched communication systems, even a single uncorrected bit error is enough
Errored_second
Topics referred to by the same term
Bit error rate test, a testing method for digital communication circuits Bit error rate tester, a test equipment used for testing the bit error rate of
Bert
Coding theory concept
same bit error rate (BER) levels when used with the error correcting code (ECC). If the uncoded BPSK system in AWGN environment has a bit error rate (BER)
Coding_gain
Number of bits of information recorded for each digital audio sample
mitigate these effects without changing the bit depth. Bit depth also affects bit rate and file size. Bit depth is useful for describing PCM digital signals
Audio_bit_depth
Topics referred to by the same term
element Union bound estimate, a probability theory bound Unrecoverable bit error rate, a media assessment measure related to the hard disk drive storage technology
UBE
Error-correcting codes
of errors and erasures. Reed–Solomon codes are also suitable as multiple-burst bit-error correcting codes, since a sequence of b + 1 consecutive bit errors
Reed–Solomon_error_correction
Type of computing error
to interpret the noise as a data bit, which can cause errors in addressing or processing program code. The bad data bit can even be saved in memory and
Soft_error
Digital modulation scheme
keying (ASK) and phase-shift keying (PSK). This allows for a lower bit error rate for a given modulation order and signal-to-noise ratio, at the cost
Amplitude and phase-shift keying
Amplitude_and_phase-shift_keying
Professional digital video networking standard
- Forward Error Correction for Transport of High Bit Rate Media Signals over IP Networks (HBRMT) ST 2022-6:2012 - Transport of High Bit Rate Media Signals
SMPTE_2022
Process of mapping a continuous set to a countable set
squared error by a factor of 4 (i.e., 6 dB) based on the Δ 2 / 12 {\displaystyle \Delta ^{2}/12} approximation. At asymptotically high bit rates, the 6 dB/bit
Quantization (signal processing)
Quantization_(signal_processing)
and Jim's roommate. The first product was a 160 Mbit/s bit error rate tester (BERT) called the BitAlyzer 160 that debuted in 1989. The company patented
SyntheSys_Research
Reliable digital data delivery methods on unreliable channels
attaches a fixed number of check bits (or parity data), which are derived from the data bits by some encoding algorithm. If error detection is required, a receiver
Error detection and correction
Error_detection_and_correction
Military communications protocol
and other sensor information at rates from 1.544 Mbit/s to 10.7 Mbit/s over ranges of 200 km. It has a bit error rate of 10e-6 with COMSEC and 10e-8 without
Common_Data_Link
Information rate that can be transmitted over a given bandwidth
measured in bit/s/Hz, or, less frequently but unambiguously, in (bit/s)/Hz. It is the net bit rate (useful information rate excluding error-correcting
Spectral_efficiency
Family of digital modulation methods
increasing the bit error rate requires a higher signal-to-noise ratio (SNR) by increasing signal energy, reducing noise, or both. If data rates beyond those
Quadrature amplitude modulation
Quadrature_amplitude_modulation
Topics referred to by the same term
Encoding Rules, a set of rules for encoding data Bit error rate, the ratio between the number of incorrect bits transmitted to the total Bermuda (IOC and UNDP
BER
Topics referred to by the same term
development company UBER, short for uncorrectable bit error rate, used as a metric for data corruption rate All pages with titles beginning with Uber All
Uber_(disambiguation)
of the scheme is due to a minimum index transmission error rate (ITER) and quantum bit error rate (QBER) introduced by an eavesdropper. The ITER increases
KMB09_protocol
Bit added to a binary string for error detection
A parity bit, or check bit, is a bit added to a string of binary code. Parity bits are a simple form of error detecting code. Parity bits are generally
Parity_bit
Signal-to-noise ratio of a modulated signal
High C/N ratios provide good quality of reception, for example low bit error rate (BER) of a digital message signal, or high SNR of an analog message
Carrier-to-noise_ratio
Network service quality
bit synchronization errors. The bit error rate or bit error ratio (BER) is the number of bit errors divided by the total number of transferred bits during
Network_performance
stronger forward error correction (FEC) coding which in turn means more redundant bits and lower information bit rate; Choice of FEC code rate—the FEC code
Link_adaptation
Physical or logical connection used for transmission of information
model. The model may reflect channel performance measures such as bit rate, bit errors, delay, delay variation, etc. Examples of digital channel models
Communication_channel
Electromechanical device
a very low error rate is needed, the synchronizers may include additional flip-flops in order to achieve an acceptably low bit error rate. In many cases
Incremental_encoder
Measurement that represents the overall performance of a cable
crosstalk (NEXT). In order for a signal to be received with an acceptable bit error rate, the attenuation and the crosstalk must both be minimized. Crosstalk
Attenuation-to-crosstalk ratio
Attenuation-to-crosstalk_ratio
This is a list of interface bit rates, a measure of information transfer rate, or digital bandwidth capacity, at which digital interfaces in a computer
List_of_interface_bit_rates
Type of error-correcting code using convolution
Reed–Solomon error correction codes that steepen the overall bit-error-rate curve and produce extremely low residual undetected error rates. Both Viterbi
Convolutional_code
International protocol
TCP performance in stressed environments including long delays, high bit error rates, and significant asymmetries. The SCPS-TP options are TCP options registered
Space Communications Protocol Specifications
Space_Communications_Protocol_Specifications
Statistics function
=20\log _{10}\!\left(Q^{-1}(y)\right)\!~\mathrm {dB} } where y is the bit-error rate (BER) of the digitally modulated signal under analysis. For instance
Q-function
Protocol in quantum cryptography
transmission of each qubit. A successful PNS attack requires maintaining the bit error rate (BER) at the receiver's end, which can not be accomplished with multiple
Decoy_state
Data storage technology
media assessment measure, unrecoverable bit error (UBE) rate, is typically guaranteed to be less than one bit in 1015[disputed – discuss] for enterprise-class
RAID
Process in quantum computing
physical errors can be approximated as elements of the Pauli group. Under this model, each qubit's error can be represented by two classical bits (00: no
Quantum_error_correction
To minimize errors due to fading and interference on the radio link, data is divided at the transmitter into blocks and then the bits within a block
Transmission_Time_Interval
because RxQual FULL values will not be reliable, because they will use Bit error rate (BER) measurements when nothing has been sent, what leads to a very
Rxqual
unbiased bases and introducing a minimum index transmission error rate and quantum bit error rate, which is particularly effective for higher-dimensional
List of quantum key distribution protocols
List_of_quantum_key_distribution_protocols
Transmitted packets failing to reach their destination
expect. Cellular networks can experience packet loss caused by, "high bit error rate (BER), unstable channel characteristics, and user mobility." TCP's intentional
Packet_loss
Sigmoid shape special function
error of a single measurement lies between − a {\displaystyle -a} and a {\displaystyle a} . This is useful, for example, in determining the bit error
Error_function
Telecommunications router that relays SS7 messages
low-level MTP messages to an adjacent signaling point to check the Bit Error Rate (BER) on a particular signaling link; or it may let other adjacent signaling
Signal_Transfer_Point
Line code used in Ethernet technologies
bit error rates requires at least a 4-bit Hamming distance protection for all packet data. In other words, all combinations of 3 randomly spaced bit-flips
64b/66b_encoding
Topics referred to by the same term
math system Q factor (digital communications), a way of representing bit error rates in dB Q ratio (disambiguation) This disambiguation page lists articles
Q_value
Practice in data transfers
return the bit streams to their original bit rates or form. Bit stuffing may be used to synchronize several channels before multiplexing or to rate-match two
Bit_stuffing
Delays experienced through a linear time-invariant system
poor fidelity in analog video and analog audio, or a high bit-error rate in a digital bit stream. Fourier analysis reveals how signals in time can alternatively
Group_delay_and_phase_delay
transmitting multiple data streams or increasing the reliability (in terms of bit error rate). In practice, the channels between different antennas are often correlated
Spatial correlation (wireless)
Spatial_correlation_(wireless)
Seemingly random, difficult to predict bit stream created by a deterministic algorithm
code Complementary sequences Bit Error Rate Test Pseudorandom noise Linear-feedback shift register "PRBS Pseudo Random Bit Sequence Generation". TTi. Retrieved
Pseudorandom_binary_sequence
Type of computer memory
data bus (64 bits), and dividing by eight to convert bits to bytes. For example, a DDR module with a 100 MHz bus clock has a peak transfer rate of 1600 megabytes
DDR_SDRAM
Clock deviation from perfect periodicity
deterministic jitter (D) and is computed in the context to a required bit error rate (BER) for the system: T = Dpeak-to-peak + 2nRrms, in which the value
Jitter
Channel access method used by various radio communication technologies
the advantage afforded by asynchronous CDMA is that the performance (bit error rate) is allowed to fluctuate randomly, with an average value determined
Code-division_multiple_access
Topics referred to by the same term
Quintana Roo, Mexico Quasi Random Signal Source, a test pattern of the bit error rate test (BERT) methods for digital communication circuits QRSS (amateur
QRSS
Memory cell capable of storing more than a single bit of information
compensate for a larger bit error rate. The higher error rate necessitates an error-correcting code (ECC) that can correct multiple bit errors; for example, the
Multi-level_cell
Linear error-correcting code
Hamming(7,4) is a linear error-correcting code that encodes four bits of data into seven bits by adding three parity bits. It is a member of a larger
Hamming(7,4)
Bit Rate Reduction, or BRR, also called Bit Rate Reduced, is a name given to an audio compression method used on the SPC700 sound coprocessor used in the
Bit_Rate_Reduction
Size of largest allowed packet on a network segment
the entire packet be retransmitted, which can be costly. At a given bit error rate, larger packets are more susceptible to corruption. Their greater payload
Maximum_transmission_unit
Secure communication method
(SPAD) recorded arrival of photons and key rate was achieved in the range of kbps with low Quantum bit error rate. In March 2021, Indian Space Research Organisation
Quantum_key_distribution
Probability of shared birthdays
comparison, 10−18 to 10−15 is the uncorrectable bit error rate of a typical hard disk. In theory, 128-bit hash functions, such as MD5, should stay within
Birthday_problem
Type of continuous-phase frequency-shift keying
separation of one-half the bit rate. In MSK the difference between the higher and lower frequency is identical to half the bit rate. Consequently, the waveforms
Minimum-shift_keying
Application-level throughput of a network
to the file size in bits divided by the file transfer time. The goodput is always lower than the throughput (the gross bit rate that is transferred physically)
Goodput
Communication device
field measurements of parameters such as received signal strength, bit error rate, or delivered audio quality. Designers adjust antenna patterns, add
Two-way_radio
Traffic prioritization and measure of network performance
confused with a high level of performance, for example high bit rate, low latency and low bit error rate. QoS is sometimes used in application layer services
Quality_of_service
Wide area network technology
featured extensive error correction to address this. ISDN offered dramatically lower error rates, in effect zero, and the extensive error correction overhead
Frame_Relay
Network that allows computers to share resources and communicate with each other
parameters that affect performance typically can include throughput, jitter, bit error rate and latency. In circuit-switched networks, network performance is synonymous
Computer_network
information consists of a heavily error-corrected short message identifying the sender. Recipients decode it and use the bit error rate to calculate and store a
Automatic_sounding
Data communications standard
dynamic range is 10 dB, and the sensitivity is −21 dBm with a bit error rate of one bit in 1012 bits. For single mode fiber, the transmitter launch power is
IEEE_1355
Network service contract
Peak Cell Rate (PCR). The UBR service category also is similar to nrt-VBR, because it is used for connections that transport variable bit rate traffic for
Traffic_contract
Unit of information
length, in bits), under the assumption that the receiver has minimal a priori knowledge of the method used to compress the string. In error detection and
Bit
Unit of information
negligible probability of error, typically in the form of an information rate. Nevertheless, the term bits of information or simply bits is more often heard
Shannon_(unit)
Measurement of a signal at discrete time intervals
including thermal sensor noise, analog circuit noise, etc.. Slew rate limit error, caused by the inability of the ADC input value to change sufficiently
Sampling_(signal_processing)
Standard for serial communication between devices without host computer
Active Error Flag six dominant bits – Transmitted by a node detecting an error on the network that is in error state error active. Passive Error Flag six
CAN_bus
Theorem that tells the maximum rate at which information can be transmitted
capacity in bits per second, a theoretical upper bound on the net bit rate (information rate, sometimes denoted I {\displaystyle I} ) excluding error-correction
Shannon–Hartley_theorem
Standard for serial communication
(start or stop bits, etc.), transmission order of bits, or error detection protocols. The character format and transmission bit rate are set by the serial
RS-232
Short-range wireless standard
Finally, data blocks up to 8 MB can be sent at once. Combined with a low bit error rate of generally <10−9, that communication could be very efficient compared
IrDA
Communications protocol
relatively high bit error rate, and the FCS could readily be computed by simple, fast circuitry or software. More effective forward error correction schemes
High-Level_Data_Link_Control
Codes intended to correct short, contiguous errors in a communications channel
error-correcting codes employ methods of correcting burst errors, which are errors that occur in many consecutive bits rather than occurring in bits independently
Burst_error-correcting_code
Number of bits used to represent a color
depth, also known as bit depth, is either the number of bits used to indicate the color of a single pixel, or the number of bits used for each color component
Color_depth
able to provide both coding gain and diversity gain and have a better bit-error rate performance. In essence they marry single channel continuous time coding
Space–time_trellis_code
handling the negative effects of the wireless channel, including high bit error rates that are known to occur in bursts over the wireless medium. It detects
WTCP
Routing of signals back to their source
test device that sends specific patterns and counts any errors that come back (see Bit Error Rate Test). Some devices include built-in loopback capability
Loopback
Telecommunications protocol
High-bit-rate digital subscriber line (HDSL) is a telecommunications protocol standardized in 1994. It was the first digital subscriber line (DSL) technology
High-bit-rate digital subscriber line
High-bit-rate_digital_subscriber_line
Type of cryptographic attack
10−15 is the uncorrectable bit error rate of a typical hard disk. In theory, MD5 hashes or UUIDs, being roughly 128 bits, should stay within that range
Birthday_attack
Method of encoding digital data on multiple carrier frequencies
efficiency describes the ability of communication system to preserve bit error rate (BER) of the transmitted signal at low power levels. Bandwidth efficiency
Orthogonal frequency-division multiplexing
Orthogonal_frequency-division_multiplexing
Furthermore, authors took noise analysis into account and calculated bit error rate during their experiments while estimated the protocol failure, false-acceptance
Distance-bounding_protocol
Electronic fault caused by radiation
element (e.g. memory "bit"). The error in device output or operation caused as a result of the strike is called an SEU or a soft error. The SEU itself is
Single-event_upset
Sudden loss of digital signal reception
TV. While forward error correction is applied to the broadcast, when a minimum threshold of signal quality (a maximum bit error rate) is reached it is
Cliff_effect
System that converts an analog signal into a digital signal
number of quantization bits. For example, for a 16-bit ADC, the quantization error is 96.3 dB below the maximum level. Quantization error is distributed from
Analog-to-digital_converter
American technology company
instruments Oscilloscopes Sampling oscilloscopes Digital multimeters Bit error rate testers (BERTs), digitizers, and data acquisition systems (DAQs) Digital
Keysight
Frequency domain representation of random fluctuations in the phase of a waveform
communications systems, lack of definition in imaging systems, and a higher bit error rate in digital systems. Lasers with a near-Infrared center wavelength are
Phase_noise
Computer expansion bus standard
vastly higher bit error rate (BER) of 10−6 (vs. 10−12 previously), so in place of 128b/130b encoding, a 3-way interlaced forward error correction (FEC)
PCI_Express
Loss or gain of bits in digital transmission
digital transmission, bit slip is the loss or gain of a bit or bits, caused by clock drift – variations in the respective clock rates of the transmitting
Bit_slip
Testable implication of local hidden-variable theories
{\boldsymbol {a}}_{0},{\boldsymbol {b}}} then need to minimize the quantum bit error rate Q, which is the probability of obtaining different measurement outcomes
CHSH_inequality
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BIT ERROR-RATE
BIT ERROR-RATE
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BIT ERROR-RATE
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