A survey on higher-order QAM constellations: Technical challenges, recent advances, and future trends
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 …
been various solutions to improve the performance, out of them, one of the fundamental …
A journey from improper Gaussian signaling to asymmetric signaling
The deviation of continuous and discrete complex random variables from the traditional
proper and symmetric assumption to a generalized improper and asymmetric …
proper and symmetric assumption to a generalized improper and asymmetric …
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 …
(QAM) signals constructed from the hexagonal lattice, known as hexagonal QAM or …
Constellation shaping for bit-interleaved LDPC coded APSK
MC Valenti, X Xiang - IEEE Transactions on communications, 2012 - ieeexplore.ieee.org
An energy-efficient approach is presented for shaping a bit-interleaved low-density parity-
check (LDPC) coded amplitude phase-shift keying (APSK) system. A subset of the …
check (LDPC) coded amplitude phase-shift keying (APSK) system. A subset of the …
ASER analysis of hexagonal and rectangular QAM schemes in multiple-relay networks
In this paper, analytical lower bound expressions of average symbol error rate (ASER) for
general-order hexagonal quadrature amplitude modulation (QAM) and rectangular QAM …
general-order hexagonal quadrature amplitude modulation (QAM) and rectangular QAM …
A new hexagonal quadrature amplitude modulation aided media‐based modulation
E Aydin - International Journal of Communication Systems, 2021 - Wiley Online Library
In this paper, a new high‐data rated and energy‐efficient hexagonal quadrature amplitude
modulation aided media‐based modulation scheme, called HQAM‐MBM, is proposed for …
modulation aided media‐based modulation scheme, called HQAM‐MBM, is proposed for …
Impact of imperfect CSI on ASER of hexagonal and rectangular QAM for AF relaying network
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 …
variable-gain amplify-and-forward relay network. The maximal ratio combining receiver over …
A survey on design and performance of higher-order QAM constellations
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 …
efficient modulation schemes in details. In the existing publications and in various …
On impact of imperfect channel state information on dual-hop nonline-of-sight ultraviolet communication over turbulent channel
Nonline-of-sight (NLOS) ultraviolet (UV) communication is expected to play a prominent role
in wireless communications with enhanced connectivity due to the aerosol and strong …
in wireless communications with enhanced connectivity due to the aerosol and strong …
Signal constellations based on Eisenstein integers for generalized spatial modulation
J Freudenberger, S Shavgulidze - IEEE communications letters, 2016 - ieeexplore.ieee.org
This letter introduces signal constellations based on multiplicative groups of Eisenstein
integers, ie, hexagonal lattices. These sets of Eisenstein integers are proposed as signal …
integers, ie, hexagonal lattices. These sets of Eisenstein integers are proposed as signal …