scholarly journals Performance analysis of dual‐function multiple‐input multiple‐output radar‐communications using frequency hopping waveforms and phase shift keying signalling

2021 ◽  
Author(s):  
Indu Priya Eedara ◽  
Aboulnasr Hassanien ◽  
Moeness G. Amin
Keyword(s):  
Performance Analysis ◽  
Phase Shift ◽  
Multiple Input Multiple Output ◽  
Frequency Hopping ◽  
Dual Function ◽  
Phase Shift Keying ◽  
Multiple Input ◽  
Shift Keying ◽  
Input Multiple Output

scholarly journals Joint Optimization of Precoder and Decoder in Multiuser MIMO Systems

2012 ◽  
Vol 2 (1-2) ◽  
Author(s):  
M. Raja ◽  
Ha H. Nguyen ◽  
P. Muthuchidambaranathan
Keyword(s):  
Mean Squared Error ◽  
Mimo Systems ◽  
Multiple Input Multiple Output ◽  
Joint Optimization ◽  
Phase Shift Keying ◽  
Multiuser Mimo ◽  
Multiple Input ◽  
Shift Keying ◽  
Input Multiple Output ◽  
Binary Phase Shift Keying

This paper considers the joint optimization of precoder and decoder for both uplink and downlink transmissions in multiuser multiple-input, multiple-output (MU-MIMO) systems. Focusing on the scenario when an improper constellation such as binary phase shift-keying (BPSK) or M-ary amplitude shift-keying (M-ASK) is employed, novel joint linear precoders and decoders are proposed to minimize the total mean squared error (TMSE) of the symbol estimation. The superiority of the proposed transceivers over the previously-proposed designs is thoroughly verified by simulation results.

scholarly journals Performance Analysis and Constellation Design for the Parallel Quadrature Spatial Modulation

Entropy ◽  
2020 ◽  
Vol 22 (8) ◽  
pp. 841
Author(s):  
Manar Mohaisen ◽  
Tasnim Holoubi ◽  
Tamer Abuhmed
Keyword(s):  
Multiple Input Multiple Output ◽  
Spatial Dimension ◽  
Spatial Modulation ◽  
Phase Shift Keying ◽  
Constellation Design ◽  
Size Number ◽  
Multiple Input ◽  
Shift Keying ◽  
Input Multiple Output ◽  
Single Input

Spatial modulation (SM) is a multiple-input multiple-output (MIMO) technique that achieves a MIMO capacity by conveying information through antenna indices, while keeping the transmitter as simple as that of a single-input system. Quadrature SM (QSM) expands the spatial dimension of the SM into in-phase and quadrature dimensions, which are used to transmit the real and imaginary parts of a signal symbol, respectively. A parallel QSM (PQSM) was recently proposed to achieve more gain in the spectral efficiency. In PQSM, transmit antennas are split into parallel groups, where QSM is performed independently in each group using the same signal symbol. In this paper, we analytically model the asymptotic pairwise error probability of the PQSM. Accordingly, the constellation design for the PQSM is formulated as an optimization problem of the sum of multivariate functions. We provide the proposed constellations for several values of constellation size, number of transmit antennas, and number of receive antennas. The simulation results show that the proposed constellation outperforms the phase-shift keying (PSK) constellation by more than 10 dB and outperforms the quadrature-amplitude modulation (QAM) schemes by approximately 5 dB for large constellations and number of transmit antennas.

Performance Analysis of DQPSK Modulated RoF System

2014 ◽  
Vol 0 (0) ◽  
Author(s):  
Ramandeep Kaur ◽  
Kamaljit singh Bhatia
Keyword(s):  
Performance Analysis ◽  
Phase Shift ◽  
Communication System ◽  
Vital Role ◽  
Phase Shift Keying ◽  
Fiber System ◽  
Quadrature Phase Shift Keying ◽  
Quadrature Phase ◽  
Shift Keying ◽  
Radio Over Fiber System

AbstractAdvanced modulation schemes play a vital role for RoF communication system for different channels. Keeping into view the same, in this paper a DQPSK (Differential Quadrature Phase Shift Keying) based radio over fiber system is proposed. Appropriate value of FWHM is also concluded for faithful communication.

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