Results 11 to 20 of about 5,731 (141)

An Adaptive Ordered Shifted-Pruning List Decoder for Polar Codes

open access: yesIEEE Access, 2020
The polar code has been selected as a channel coding solution for the control channel of 5th generation wireless systems (5G). Compared with the conventional cyclic-redundancy-check-aided successive cancellation list (CA-SCL) decoder for polar codes, the
Yansong Lv, Hang Yin, Yuhuan Wang
doaj   +1 more source

A novel rate allocation method for multilevel coded modulation [PDF]

open access: yes, 2010
We present a new rate allocation scheme for multilevel coded modulation based on the minimization of the total block error rate (BLER). The proposed method uses affine code components and hard decision multistage decoding.
Agrell, Erik   +3 more
core   +1 more source

Autoencoder-Based Transceiver Design for OWC Systems in Log-Normal Fading Channel

open access: yesIEEE Photonics Journal, 2019
In this paper, we construct the autoencoder (AE) for optical wireless communication (OWC) systems with non-negativity and peak power constraints, which provides effective transceiver design in log-normal channel.
Zhao-Rui Zhu   +3 more
doaj   +1 more source

A Low-Complexity Semi-Analytical Approximation to the Block Error Rate in Nakagami-m Block Fading Channels [PDF]

open access: yes, 2010
There are few analytical formulas that can be used for calculating the block error rate (BLER) in block fading channels. Thus, an estimate of the BLER is often obtained using numerical methods. One such method is the threshold method which assigns 0 or 1
Lakshmana, Tilak Rajesh   +3 more
core   +1 more source

A system‐level performance evaluation of a reconfigurable filtenna in the presence of in‐ and out‐of‐band blockers

open access: yesIET Communications, 2022
Direct RF sampling has been suggested as a solution for receivers that are flexible in frequency and across standards, while utilising only a single radio frequency front‐end.
Stephen Henthorn   +2 more
doaj   +1 more source

BLER and Throughput Analysis of Power Beacon-Based Energy Harvesting UAV-Assisted NOMA Relay Systems for Short-Packet Communications

open access: yesIEEE Access, 2023
In this paper, we analyze an unmanned aerial vehicle (UAV) that harvests energy from a power beacon to support the transmissions of finite blocklength packets from a source to two destinations using non-orthogonal multiple access (NOMA) scheme.
Tran Manh Hoang   +4 more
doaj   +1 more source

Adaptive Probabilistic Shaping Using Polar Codes for FSO Communication

open access: yesIEEE Photonics Journal, 2022
An adaptive polar coded probabilistic shaping scheme for free-space optical (FSO) communication is proposed and demonstrated to improve transmission performance.
Xiaoyu Liu   +4 more
doaj   +1 more source

Decision feedback equalization in SC-FDMA [PDF]

open access: yes, 2008
SC-FDMA (Single-Carrier Frequency Division Multiple Access) is employed in the 3GPP LTE (Long-Term Evolution) standard as the uplink transmission scheme. The SC-FDMA signal has a low PAPR.
Armour, SMD, Huang, G, Nix, AR
core   +3 more sources

Sub-graph based joint sparse graph for sparse code multiple access systems [PDF]

open access: yes, 2018
Sparse code multiple access (SCMA) is a promising air interface candidate technique for next generation mobile networks, especially for massive machine type communications (mMTC).
Imran, Muhammad Ali   +5 more
core   +2 more sources

Error Propagation Mitigation in Sliding Window Decoding of Braided Convolutional Codes

open access: yes, 2020
We investigate error propagation in sliding window decoding of braided convolutional codes (BCCs). Previous studies of BCCs have focused on iterative decoding thresholds, minimum distance properties, and their bit error rate (BER) performance at small to
Bai, Baoming,   +5 more
core   +1 more source

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