Patent
Method, apparatus and computer program product providing soft iterative recursive least squares (RLS) channel estimator
TLDR
In this paper, an apparatus having a detector for an iterative LDPC-coded MIMO-OFDM system, where the detector is configured to use a structured irregular LDPC code in conjunction with a belief propagation algorithm is presented.Abstract:
Disclosed is an apparatus having a detector for an iterative LDPC-coded MIMO-OFDM system, where the detector is configured to use a structured irregular LDPC code in conjunction with a belief propagation algorithm. Also disclosed is an apparatus having a detector for a structured irregular LDPC-coded MIMO-OFDM system, where the detector is configured to use an iterative Recursive Least Squares-based data detection and channel estimation technique. Corresponding methods and computer program products are also disclosed.read more
Citations
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Single channel full duplex wireless communications
TL;DR: In this paper, the first analog radio frequency signal including a signal of interest and an interference signal caused by a second analog signal transmitted in full duplex over a channel from which the first analogue transmission is received is provided.
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TL;DR: In this article, the frequency response characteristic of the communication channel is used in determining the attenuation levels, via one or more preamble symbols, to remove a portion of a self-interference signal present in a signal received by the device.
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Self-interference cancellation for mimo radios
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TL;DR: In this article, the frequency response characteristic of a multitude of communication channels, used in determining the values, via one or more preanible symbols that are jointly transmitted from the first transmit antenna and the second transmit antenna.
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Systems and methods for full-duplex signal shaping
TL;DR: In this article, the authors present a system that includes a transmitting antenna for transmitting a signal over a plurality of wireless spectrum fragments, a receiving antenna for receiving a signal from the plurality of WSNs, and a signal processing layer in communication with the transmitting and receiving antennas for simultaneously causing reception of the received signal and transmission of the transmitted signal.
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Systems and methods for phase noise mitigation
TL;DR: In this paper, a system for phase noise mitigated communication including a primary transmitter that converts a digital transmit signal to an analog transmit signal, a primary receiver that receives an analog receive signal and converts the analog receive signals to a digital receive signal, and a digital self-interference cancellation signal with the digital receive signals was proposed.
References
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Book
Low-Density Parity-Check Codes
TL;DR: A simple but nonoptimum decoding scheme operating directly from the channel a posteriori probabilities is described and the probability of error using this decoder on a binary symmetric channel is shown to decrease at least exponentially with a root of the block length.
Journal ArticleDOI
Convergence behavior of iteratively decoded parallel concatenated codes
TL;DR: A code search based on the EXIT chart technique has been performed yielding new recursive systematic convolutional constituent codes exhibiting turbo cliffs at lower signal-to-noise ratios than attainable by previously known constituent codes.
Journal ArticleDOI
Minimum mean squared error equalization using a priori information
TL;DR: This work explores a number of low-complexity soft-input/soft-output (SISO) equalization algorithms based on the minimum mean square error (MMSE) criterion and shows that for the turbo equalization application, the MMSE-based SISO equalizers perform well compared with a MAP equalizer while providing a tremendous complexity reduction.
Journal ArticleDOI
High-throughput LDPC decoders
TL;DR: A high-throughput memory-efficient decoder architecture for low-density parity-check (LDPC) codes is proposed based on a novel turbo decoding algorithm, and a full-decoder architecture is presented.
Journal ArticleDOI
Combinatorial constructions of low-density parity check codes for iterative decoding
Bane Vasic,Olgica Milenkovic +1 more
TL;DR: This paper introduces several new combinatorial constructions of low-density parity-check (LDPC) codes, in contrast to the prevalent practice of using long, random-like codes.