Results 51 to 60 of about 26,068 (175)
Design, comparative study and analysis of CDMA for different modulation techni
Egyptian Informatics Journal, 2015 In this work, we have design a MIMO–CDMA using 4 ∗ 8 antennas with the combination of MMSE (Minimum Mean square Error Equalizer) for BPSK (Binary Phase shift Keying), QPSK (Quadrature Phase Shift Keying), 16-QAM, 64-QAM and 256-QAM (Quadrature Amplitude ...
Arun Kumar, Manisha Gupta
doaj +1 more source
Sensors International, 2022 Our modern world is completely driven by our ability to communicate all over the world with great precision, accuracy, and the least amount of time possible.
Md Wahid Sadiq, Md Ahasan Kabir
doaj +1 more source
IEEE Access, 2017 Next generation wireless standards will exploit the wide bandwidth available at the millimeterwave (mm-Wave) frequencies, in particular the E-band (71-76 and 81-86 GHz).
Claudio Sacchi +3 more
doaj +1 more source
Non-Coherent MIMO Scheme Based on OFDM-MFSK [PDF]
, 2017 We propose a non-coherent transmission system based on orthogonal frequency division multiplexing (OFDM) for low-power applications. The proposed system uses M-ary frequency shift keying (MFSK) and employs two transmitting and two receiving antennas ...
Nix, Andrew +3 more
core +2 more sources
A Reduced-Complexity Detector for OFDMA/SC-FDMA-Aided Space-Time Shift Keying [PDF]
2013 IEEE 78th Vehicular Technology Conference (VTC Fall), 2013 We propose a novel reduced-complexity detector for the orthogonal frequency division multiple access (OFDMA)/single-carrier frequency division multiple access (SC-FDMA)-aided space-time shift keying (STSK) architecture. STSK employing OFDMA/SC-FDMA has recently been shown to be beneficial in dispersive multiuser downlink/uplink scenarios. These schemes
Mohammad Ismat Kadir +2 more
openaire +2 more sources
Performance analysis of CIM‐STSK system
IET Communications, 2022 Code‐index modulation (CIM) uses the index of spreading code to convey information, which can be integrated with different kinds of MIMO systems to achieve higher throughput.
Lina Bian, Daying Quan, Xiaoping Jin
doaj +1 more source
Differential Space Time Shift Keying for Dispersive Multi-user Scenarios using OFDM [PDF]
International Journal of Computer Applications, 2013 Spatial modulation (SM) is a recently developed transmission technique that uses multiple antennas. The concept of SM is extended to both the space and time dimensions to provide a general shift-keying framework. A new modulation scheme called Differential STSK (DSTSK) scheme, assisted by the Cayley unitary transform is proposed to OFDM aided Multiple ...
S. Veluchamy, S. RuthKarunya
openaire +1 more source
Advanced ScienceHarmonic generation and utilization are significant topics in nonlinear science. Although the progress in the microwave region has been expedited by the development of time‐modulated metasurfaces, one major issue of these devices is the strong ...
Zhangjie Luo +8 more
doaj +1 more source
PERFORMANCE ANALYSIS OF MIMO-SPACE TIME BLOCK CODING WITH DIFFERENT MODULATION TECHNIQUES [PDF]
ICTACT Journal on Communication Technology, 2012 MIMO Diversity is the technique which takes the advantage of multipath and mitigates the effect of fading and increases signal strength. Space Time Block code (STBC) is used in Multiple Input Multiple Output (MIMO) system to improve the performance by ...
Shubhangi Chaudhary, A.J. Patil
doaj
Information, 2017 A turbo coded cooperative orthogonal frequency division multiplexing (OFDM) with multiple-input multiple-output (MIMO) antennas scheme is considered, and its performance over a fast Rayleigh fading channel is evaluated.
Rahim Umar, Fengfan Yang, Shoaib Mughal
doaj +1 more source