Results 1 to 10 of about 776 (104)

Cooperative DF Protocol for MIMO Systems Using One-Bit ADCs [PDF]

Sensors, 2022
This study considers a detection scheme for cooperative multi-input–multi-output (MIMO) systems using one-bit analog-to-digital converters (ADCs) in a decode-and-forward (DF) relay protocol.
Tae-Kyoung Kim
doaj   +2 more sources

Enhancing wireless communication systems through large intelligent surfaces: a performance analysis of LIS-assisted NOMA networks [PDF]

Scientific Reports
The integration of large intelligent surfaces (LIS) with non-orthogonal multiple access (NOMA) networks has emerged as a promising solution to enhance the capacity and coverage of wireless communication systems.
Kalapraveen Bagadi, Visalakshi Annepu, C. Dhanamjayulu, Naga Raju Challa, Faruq Mohammad, Baseem Khan   +5 more
doaj   +2 more sources

An Investigation of the MIMO Space Time Block Code Based Selective Decode and Forward Relaying Network over η–µ Fading Channel Conditions

Journal of Telecommunications and Information Technology, 2022
In this paper, we examine the end-to-end average pairwise error probability (PEP) and output probability (OP) performance of the maximum ratio combining (MRC) based selective decode and forward (S-DF) system over an η–µ scattering environment ...
Ravi Shankar, V. V. Raghava Raman, Kantilal P. Rane, Sarojini B. K, Rahul Neware   +4 more
doaj   +1 more source

Performance Analysis and Phase Shift Design of IRS-Aided Uplink OTFS-SCMA

IEEE Access, 2023
In this paper, we consider an intelligent reflecting surface (IRS)-aided orthogonal time frequency space (OTFS)-based uplink sparse code multiple access (SCMA) communications system.
Jiarui Li, Yi Hong
doaj   +1 more source

Design and Performance Analysis of Probabilistically Shaped QAM Signals for Coherent FSO Systems with Gamma-Gamma Turbulence Channels

Applied Sciences, 2021
Probabilistic shaping (PS) is a promising technique to approach the Shannon limit. In this paper, we design a practical coded modulation scheme based on PS to improve the capacity of coherent free-space optical (FSO) links with quadrature amplitude ...
Ruotong Tian, Zhiyong Wu, Shuang Ma, Yucong Gu, Xueliang Li   +4 more
doaj   +1 more source

SWIPT-Enabled Cooperative NOMA With mth Best Relay Selection

IEEE Open Journal of the Communications Society, 2020
Non-orthogonal multiple access (NOMA) was recently regarded as a potential technique for next generation wireless networks. Recent works on relay selection for cooperative NOMA systems have mainly addressed the best relay selection to forward its ...
Suyue Li, Lina Bariah, Sami Muhaidat, Paschalis C. Sofotasios, Jie Liang, Anhong Wang   +5 more
doaj   +1 more source

Space-Time Frequency Block Codes in LTE-DSRC Hybrid Vehicular Networks

International Journal of Technology, 2022
In vehicular communication systems, Dedicated Short Range Communication (DSRC) is said to provide fast communication and high security between vehicles. Simultaneously, Long-Term Evolution (LTE) is used due to its high bandwidth, low latency, and high
Azlan Abd Aziz, Hanis Adiba Mohamad, Azwan Mahmud, Mohamad Yusoff Alias, Nawaid Hasan   +4 more
doaj   +1 more source

Interplay of NOMA and GSSK: Detection Strategies and Performance Analysis

IEEE Open Journal of Vehicular Technology, 2023
Non-orthogonal multiple access (NOMA) was identified as a technology enabler for the fifth generation and beyond networks, due to the prominent advantages achieved when integrating NOMA with other wireless technologies.
Rajalekshmi Kishore, Sanjeev Gurugopinath, Lina Bariah, Sami Muhaidat, Paschalis C. Sofotasios, Faissal El Bouanani, Halim Yanikomeroglu   +6 more
doaj   +1 more source

Exact pairwise error probability analysis of space-time codes in spatially correlated fading channels

Journal of Telecommunications and Information Technology, 2006
In this paper, we derive an analytical expression for the exact pairwise error probability (PEP) of a space-time coded system operating over a spatially correlated slow fading channel using a moment-generating function-based approach.
Tharaka A. Lamahewa, Marvin K. Simon, Thushara D. Abhayapala, Rodney A. Kennedy   +3 more
doaj   +1 more source

Accurate Performance Analysis of Coded Large-Scale Multiuser MIMO Systems with MMSE Receivers

Sensors, 2019
In this paper, we estimate the uplink performance of large-scale multi-user multiple-input multiple-output (MIMO) networks. By applying minimum-mean-square-error (MMSE) detection, a novel statistical distribution of the signal-to-interference-plus-noise ...
Kai Zhai, Zheng Ma, Xianfu Lei
doaj   +1 more source