摘要:
A systematic polar encoder with data checks includes a data mapper receiving input data containing information to be polar coded for transmission and generating modified data, and a nonsystematic polar encoder implementing a transform matrix encoding the modified data to produce a codeword x such that, for some sub-sequence of coordinates S, xS=d. For nonsystematic encoding, a transform input u includes first and second parts for words independent of the data, the second part for an inverse puncture word, a third part carrying the modified data, and a non-null part carrying a check word derived from the modified data. A transform output includes a punctured part for a puncture word, a part carrying the data, and a part serving as redundant symbols, with the codeword x related to the transform output by x=zQ where Q is the complement of the punctured part P.
摘要:
A systematic encoder such as a systematic polar encoder for channel encoding to ameliorate the effects of noise in a transmission channel. The codeword carries a data word to be transmitted transparently, and also carries a parity part derived from the data word and a fixed word. Implementations advantageously reduce coding complexity to the order of N log(N), wherein N is the dimension of a matrix of the n th Kronecker power associated with a matrix effectively employed by the encoder.
摘要:
The electrical signal contains signal information and redundancy information for the signal information determined from the signal information. A dependability degree is approximated from the electrical signal for forming at least one signal value, and the signal value is determined dependent on the dependency degree. This ensues in that a target function that contains a model of a transmission channel is optimized, and the optimization ensues upon employment of the target function.
摘要:
Provided is an apparatus for designing a quantum code, which includes an analyzing unit for analyzing at least one quantum error generated in a quantum error channel as at least one binary error by using a standard form codeword stabilized quantum (CWS) code, a code generating unit for generating a binary error-correcting code which corrects the at least one binary error, a word operator generating unit for generating at least one word operator of the CWS code by using the at least one binary error-correcting code, and a codeword generating unit for generating at least one codeword including at least one entangled qubit (ebit) by using the at least one word operator.
摘要:
Decoding logic is provided that is operational upon a data buffer to represent a plurality of variable nodes and a plurality of check nodes. For a respective one of the variable nodes, a vector component is selected from a confidence vector associated with the variable node. Using a respective one of the check nodes, a check node return value is calculated based on one or more other vector components from one or more other vectors and one or more vector indices corresponding to the one or more other vector components. The confidence vector is then updated based on the check node return value and an index for the check node return value, and a current state of a memory cell associated with the respective one of the variable nodes is determined based on a location of a primary one of multiple vector components within the updated confidence vector.
摘要:
A systematic encoder such as a systematic polar encoder for channel encoding to ameliorate the effects of noise in a transmission channel. The codeword carries a data word to be transmitted transparently, and also carries a parity part derived from the data word and a fixed word. Implementations advantageously reduce coding complexity to the order of Nlog(N), wherein is the dimension of a matrix of the nth Kronecker power associated with a matrix effectively employed by the encoder.
摘要:
A systematic encoder such as a systematic polar encoder for channel encoding to ameliorate the effects of noise in a transmission channel. The codeword carries a data word to be transmitted transparently, and also carries a parity part derived from the data word and a fixed word. Implementations advantageously reduce coding complexity to the order of N log(N), wherein N is the dimension of a matrix of the n th Kronecker power associated with a matrix effectively employed by the encoder.
摘要:
The present subject-matter relates to transmitting a real-time data stream, namely simultaneously to multiple receivers over unreliable networks (e.g. wireless multicast), in a timely and reliable manner, in particular to a method, apparatus and computer program product for feedback-based real-time network coding. It is disclosed a computer-implemented method for a transmitting node, a receiving node, and an intermediate node of feedback-based real-time network coding from a transmitter and to one or more receivers, in particular comprising a linear combination of packets from the transmitter; determining whether the received linear combination of packets is linearly independent of previous linear combinations of packets; determining the validity of a priority level of the packets; determining validity of the deadline of the packets; determining whether a packet is to be removed from a transmit queue, and if determined removing it. There are also disclosed said transmitting, receiving, and intermediate nodes.
摘要:
An encoding circuit includes: a polar encoding unit capable of encoding a polar code of N bits; a frozen bit adding unit that generates a first sequence by adding frozen bits to an input signal; and a bit arrangement changing unit that: generates a second sequence of N bits by arranging the first sequence in the second sequence according to an arrangement rule dependent on a ratio of Nt bits, being a code length of a polar code to be encoded and being N bits or less, and N bits, and setting bit values at bit positions other than positions where the first sequence is arranged in the second sequence to zero when Nt bits are less than N bits; and inputs the second sequence to the polar encoding unit. A code word of Nt bits is generated by thinning processing based on a result of encoding the second sequence.
摘要:
Semiconductor devices, packaging architectures and associated methods are disclosed. In one embodiment, a multi-chip module (MCM) is disclosed. The MCM includes a first integrated circuit (IC) chip including a first interface defining a first number of interface contacts. Conversion circuitry receives a first full set of signals associated with the first interface and to omit a subset of the full set of signals to generate a reduced set of signals. Serialization circuitry serializes the reduced set of signals to generate a serialized set of signals. A second interface transmits the serialized set of signals with a second number of interface contacts that is less than the first number of interface contacts. A logic IC chip includes a third interface coupled to the second interface via a set of links and configured to match the second interface. Deserialization circuitry deserializes the serialized set of signals. Reconversion circuitry recreates signals corresponding to the omitted subset of the full set of signals and aggregates the recreated signals with the deserialized signals to form a second full set of signals that correspond to the first full set of signals.