A survey on higher-order QAM constellations: Technical challenges, recent advances, and future trends

PK Singya, P Shaik, N Kumar, V Bhatia… - IEEE Open Journal of …, 2021 - ieeexplore.ieee.org
Communication system's performance is sensitive to bandwidth, power, cost etc. There have
been various solutions to improve the performance, out of them, one of the fundamental …

A Survey-cum-Tutorial on Approximations to Gaussian Function for Symbol Error Probability Analysis Over Nakagami- Fading Channels

S Aggarwal - IEEE Communications Surveys & Tutorials, 2019 - ieeexplore.ieee.org
This paper is a survey-cum-tutorial on the Gaussian function and its approximations; and
their significance in computing the error probabilities over Nakagami-fading. The goal is to …

Multilevel polarization shift keying modulation for turbulence-robust underwater optical wireless communication

W Liu, Z Ye, N Huang, S Li, Z Xu - Optics Express, 2023 - opg.optica.org
Turbulence is an intractable issue for underwater optical wireless communication (UOWC).
Most literature has been mainly focused on the modeling of turbulence channels and …

Symbol error probability of hexagonal QAM

L Rugini - IEEE communications letters, 2016 - ieeexplore.ieee.org
This letter studies the symbol error probability (SEP) of quadrature-amplitude modulation
(QAM) signals constructed from the hexagonal lattice, known as hexagonal QAM or …

Constellation design for future communication systems: A comprehensive survey

J Barrueco, J Montalban, E Iradier, P Angueira - IEEE Access, 2021 - ieeexplore.ieee.org
The choice of modulation schemes is a fundamental building block of wireless
communication systems. As a key component of physical layer design, they critically impact …

Impact of imperfect CSI on ASER of hexagonal and rectangular QAM for AF relaying network

PK Singya, N Kumar, V Bhatia - IEEE Communications Letters, 2017 - ieeexplore.ieee.org
In this letter, we derive the closed-form expression of outage probability for a dual-hop
variable-gain amplify-and-forward relay network. The maximal ratio combining receiver over …

A survey on design and performance of higher-order QAM constellations

PK Singya, P Shaik, N Kumar, V Bhatia… - arXiv preprint arXiv …, 2020 - arxiv.org
As the research on beyond 5G heats up, we survey and explore power and bandwidth
efficient modulation schemes in details. In the existing publications and in various …

Simple and accurate SEP approximation of hexagonal‐QAM in AWGN channel and its application in parametric, fading, and log‐normal shadowing

D Sadhwani, RN Yadav, S Aggarwal… - IET …, 2018 - Wiley Online Library
In this study, the authors propose a simple yet tighter approximations for the special two‐
dimensional Gaussian Q functions using the Trapezoidal rule of numerical integration. This …

SEP performance of triangular QAM with MRC spatial diversity over fading channels

FH Qureshi, SA Sheikh, QU Khan, FM Malik - EURASIP Journal on …, 2016 - Springer
This paper presents the mathematical model for symbol error probability of triangular
quadrature amplitude modulation in a single-input multi-output environment. The symbol …

Ternary trellis coded modulation

M Abdelaziz, TA Gulliver - IEEE Access, 2019 - ieeexplore.ieee.org
Ternary trellis coded modulation (TTCM) is introduced. This combines triangular signal
constellations with ternary convolutional codes. The performance of TTCM is presented and …