Results 31 to 40 of about 273 (129)

Performance Analysis of Short Packets in NOMA VLC Systems

IEEE Access, 2022
In this paper, we propose a theoretical framework for analyzing the performance of the short-packet communication (SPC) in a downlink non-orthogonal multiple access (NOMA) visible light communication (VLC) system in which one light emitting diode (LED ...
Giang N. Tran, Sunghwan Kim
doaj   +1 more source

Pilot‐Based Iterative Path Estimation and Maximum Ratio Combining (MRC)–Based Signal Detection of Orthogonal Time–Frequency Space (OTFS) Modulation for 6G in Fractional Doppler Channels

Journal of Computer Networks and Communications, Volume 2026, Issue 1, 2026.
The sixth generation (6G) wireless networks are used to provide a large coverage, and also this generation needed to support different emerging applications in harsh areas with higher user equipment mobility. For the above case, a new modulation technique called orthogonal time–frequency space (OTFS) modulation has emerged as a promising technique to ...
Ephrem Gelamite Demere, Zelalem Hailu Gebeyehu, Sohini Basu Roy   +2 more
wiley   +1 more source

Better than risk‐free: Reserve premiums and bank lending

Financial Review, Volume 60, Issue 2, Page 541-571, May 2025.
Abstract When the Federal Reserve first paid interest on excess reserves (IOER) in October 2008, banks faced a choice to earn a “better than” risk‐free rate, or lend to earn a higher, riskier rate. Evidence suggests the “reserves‐lending puzzle” is not driven by endogeneity from reverse causality, flight to safety, or increased Treasury supply, but by ...
Raymond Kim
wiley   +1 more source

5G‐coded fluid antenna multiple access over block fading channels

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This letter investigates the use of 5G New Radio (NR) Modulation Coding Scheme (MCS) for FAMA systems to improve its connectivity over block fading channels. In particular, we propose an iterative decoding receiver with iterative interference covariance estimation, designed explicitly for slow fading channels.
Hanjiang Hong, Kai‐Kit Wong, Kin‐Fai Tong, Hao Xu, Haoyang Li   +4 more
wiley   +1 more source

Rate-Compatible Polar- and LDPC-Coded Hybrid ARQ Aided Reverse Reconciliation in CV-QKD

IEEE Open Journal of Vehicular Technology
Continuous-variable quantum key distribution (CV-QKD) systems face challenges in maintaining efficient reconciliation over long distances due to the time variant signal-to-noise ratio (SNR) imposed by channel quality fluctuations.
Dingzhao Wang, Xin Liu, Chao Xu, Soon Xin Ng, Lajos Hanzo   +4 more
doaj   +1 more source

Performance analysis of macro cell MIMO-OFDM systems based remote radio head technology

上海师范大学学报. 自然科学版, 2017
Macro cell MIMO-OFDM system based remote radio head (RRH) and the 4RRH model of 3GPP protocol were detailly described in high speed scenario.Furthermore,the frequency offset estimation algorithm and the channel estimation algorithm about the given system
Zhao Xin, Zhou Xiaolin, Jin Xiaocheng, Xu Bing   +3 more
doaj   +1 more source

Block Error Rate Minimization of Downlink MIMO‐NOMA With Finite Blocklength

Electronics Letters, Volume 61, Issue 1, January/December 2025.
This paper investigates the downlink multiple‐input multiple‐output (MIMO)‐non‐orthogonal multiple access (NOMA) transmission with finite blocklength (FBL). Our aim is to achieve the minimum average block error rate (BLER) by proposing an efficient power, rate, and blocklength allocation scheme.
Yuan Yin, Tianying Zhong, Kang Zheng, Jiaheng Wang   +3 more
wiley   +1 more source

Holographic Reconfigurable Intelligent Surface-Aided Downlink NOMA IoT Networks in Short-Packet Communication

IEEE Access
Non-orthogonal multiple access (NOMA) technology is projected to significantly increase the spectrum efficiency of the fifth-generation and subsequent wireless networks.
Dinh-Tung Vo, Tan N. Nguyen, Anh-Tu Le, Van-Duc Phan, Miroslav Voznak   +4 more
doaj   +1 more source

Online fountain code with an improved caching mechanism

IET Communications, Volume 18, Issue 20, Page 1813-1825, December 2024.
By catching some selected encoded symbols discarded in the original online fountain codes and giving an optimal degree selection strategy of encoded symbols, the proposed online fountain code improves the receiving rules of the encoded symbols. The proposed online codes outperform the state‐of‐art online fountain codes in terms of overhead factors ...
Yin Zhang, Zhen Zhen, Yuli Zhao, Francis C. M. Lau, Bochang Ma, Bin Zhang, Hai Yu, Zhiliang Zhu   +7 more
wiley   +1 more source

A path splitting and pruning strategy on list decoder for PAC codes

IET Communications, Volume 18, Issue 18, Page 1292-1299, November 2024.
The paper introduces a novel low‐complexity list decoding algorithm for polarization‐adjusted convolutional codes. By incorporating path splitting and pruning strategies based on highly reliable information bits, our algorithm significantly reduces decoding complexity while maintaining optimal performance.
Lei Lan, Zhongpeng Wang, Lijuan Zhang
wiley   +1 more source