Fadhil S. Hasan
Al-Mustansiriya University
Communications systemAlgorithmSpectral efficiencyAnimal scienceEncryptionCommunication channelAdditive white Gaussian noiseElectronic engineeringChaoticOrthogonal frequency-division multiplexingComputer scienceField-programmable gate arrayModulationBit error rateRayleigh fadingLow-density parity-check codeBiologyStream cipherComputer hardware
34Publications
5H-index
42Citations
Publications 43
Newest
#1Fadhil S. HasanH-Index: 5
#2Mahmood F. Mosleh (Al-Mustansiriya University)H-Index: 5
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Spread spectrum (SS) communications have attracted interest because of their channel attenuation immunity and low intercept potential. Apart from some extra features such as basic transceiver structures, chaotic communication would be the analog alternative to digital SS systems. Differential Chaos Shift Keying (DCSK) systems, non-periodic and random characteristics among chaos carriers as well as their interaction with soft data are designed based on low-density parity-check (LDPC) codes in thi...
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#1Fadhil S. Hasan (University College of Engineering)H-Index: 5
Abstract To sufficiently use the subcarrier index modulation in differential chaos shift keying (DCSK) of the recently suggested carrier index differential chaos shift keying (CI-DCSK) and two-layer carrier index differential chaos shift keying (2CI-DCSK), new subcarrier index modulation based DCSK is proposed and named grouping subcarrier index modulation DCSK (GSIM-DCSK). Two grouping subcarrier index modulations based DCSK systems are proposed named GSIM-DCSK-I and GSIM-DCSK-II systems. The d...
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To mitigate the effect of 5G wireless channel, new multicarrier with robust features and waveform needs to replace the conventional OFDM system. In this study, three adopted multicarrier systems are employed and compared with OFDM including FBMC, FOFDM and UFMC over 5G channel. null The BER performance, PAPR and PSD are compared with OFDM system. One tap frequency domain equalizer is used with all multicarrier systems and test the performance over 5G channel. null The consequences show that, FBM...
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#1Fadhil S. Hasan (Al-Mustansiriya University)H-Index: 5
In this paper, a frequency hopping sequence (FHS) generator using one-dimensional chaotic map (1DCM) is implemented using FPGA supported by Xilinx system generator (XSG). The 1DCM methods in this paper are Logistic, Improved Logistic, Tent, Borujeni, Bernoulli-Shift, and Zigzag map. Each 1DCM is discretized using fixed-point operation and the least significant bits from some offset indices are selected and considered as frequency hopping sequence. FPGA SP605 XC6SLX45T-3FGG484 evaluation board is...
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#1Fadhil S. Hasan (University of North Sumatra)H-Index: 5
#2I. Khaerunnisa (LIPI: Indonesian Institute of Sciences)H-Index: 2
Last. A H Daulay (University of North Sumatra)H-Index: 1
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#1Ansam Mohammed Abed (Al-Mustansiriya University)
#2Fadhil S. Hasan (Al-Mustansiriya University)H-Index: 5
This paper study and present, power allocation strategy on sub-carriers of multiuser OFDM employed for orthogonal chaotic vector shift keying (MU OFDM-OCVSK) over multipath frequency selective fading channels. firstly, the MU OFDM-OCVSK system is modeled with power allocated on reference and information bearing subcarriers. Then, the computed bit error rate equation of the power allocation MU OFDM-OCVSK system is derived. The optimal power allocation strategy on subcarriers is obtained using con...
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#2Khamis A. ZidanH-Index: 2
Last. Fadhil S. Hasan (Al-Mustansiriya University)H-Index: 5
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