This article addresses the problem of coherent detection of acoustic orthogonal frequency
division multiplexing (OFDM) signals using a sparse channel estimation method based on a …

This paper addresses the prediction of error floors of low-density parity-check codes
transmitted over the additive white Gaussian noise channel. Using a linear state-space …

The error floor phenomenon observed with LDPC codes and their graph-based, iterative,
message-passing (MP) decoders is commonly attributed to the existence of error-prone …

Despite encouraging advances in the design of relay codes, several important challenges
remain. Many of the existing LDPC relay codes are tightly optimized for fixed channel …

Protograph LDPC (P-LDPC) codes and large-scale multiple-input multiple-output (LS-MIMO)
are cornerstones of 5G and future wireless systems, thanks to their powerful error-correcting …

Modern mobile communication systems utilize increased bandwidth to provide advanced
network performance and connectivity, all while their most computationally-intensive …

1.1 PURPOSE This Informational Report contains the concept and supporting rationale for
the TC Synchronization and Channel Coding Recommended Standard developed by the …

Here, a simplified algorithm to calculate log‐likelihood ratio (LLR) for m‐QAM demodulation
is proposed. Traditional method calculating LLR for m‐QAM demodulation is supposed to do …

In contemporary digital communications design, two major challenges should be addressed:
adaptability and flexibility. The system should be capable of flexible and efficient use of all …

In this dissertation, a systematic framework is proposed to design practical protograph-
based low-density parity check (LDPC) coding schemes that address simultaneously …