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IJECT Vol. 10.2 (April – June 2019)

Vol 10 Issue 2 (April – June 2019)

International Journal of Electronics & Communication Technology Vol 10 Issue 2 (April – June 2019)
S.No. Research Topic Paper ID
01 Adaptive Beamforming Algorithms for Mimo Radar and Phased Array Antennas for Future Generation Wireless Communications
L. Surendra, B.Uday Krishna Kanth, Ch.Ruth Suhasini, T.Yamini, G.Durga Bhavani

Next generation wireless communications like 5G and beyond 5G networks for high-speed data transfer rates required with reduced side-lobe levels are indeed required to meet the demands of future wireless communications Many wireless communication and radar signals are frequency or phase modulated signals Some examples of phase and frequency modulated signals are Frequency Modulation (FM), Phase Shift Keying (PSK), Frequency Shift Keying (FSK), Quadrature Amplitude Modulation (QAM) Advanced and sophisticated communication system requires an SLL which is significantly lesser than the main lobe peak This can be achieved by considering CMA and LS-CMA based on CMA These are efficient blind adaptive beamforming algorithms are implemented by using MATLAB.
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02 Massive MIMO Performance over D-GOB, H-SUB Beamforming Algorithms
Surendra Loya, Hari Praneet Sreenivasula, Harshni Vajrala, Kavya Krishnavarapu, Rupa Sri Volupu

Massive MIMO is to equip at base stations in wireless networks with large arrays of phase coherently co-operating antennas. The use of such arrays facilities spatial multiplexing of many User Equipment’s (UE’s) in the same time frequency resource and yields a coherent beamforming gain that translates directly in to reduced interference and improved cell edge coverage. Downlink beamforming in Massive MIMO either relies on Uplink pilot measurements the use of predetermined grid of beams with user equipment’s reporting their preferred beams mostly in frequency division duplexing operation. In this paper we observed the performance of various feedback based CSI beamforming algorithms based on MATLAB.
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IJECT Vol. 10.1 (Jan – March 2019)

Vol 10 Issue 1 (Jan – March 2019)

International Journal of Electronics & Communication Technology Vol 10 Issue 1 (Jan – March 2019)
S.No. Research Topic Paper ID
01 Optical Signal Quality Optimization by Adopting Spectral Inversion at the Receiver of High-Speed Optical Communication System
Hamidine Mahamadou

In this paper a new approach of improving received optical signal quality utilizing Spectral Inversion (SI) technique outside the transmission link is investigated in long-haul intensity and phase modulated transmission systems using channel data rate up to 100 Gb/s. The approach is implemented using a module called Optical Signal Post-Optimization (OSPO) composed with an OPC-unit followed by Highly Nonlinear Fiber (HNLF) with high nonlinear coefficients. 100 Gb/s single channel was simulated with differential quadrature phase shift keying (DQPSK) where an increased in Q factor of the system with OSPO of 1.5 dB is observed at transmission lengths of 2000, 2500 and 3000 km. For 100 Gb/s 5 channels WDM the system Q factor improvement was about 1 dB at transmission lengths of 2000 and 2500 km. To ascertain the effectiveness of the method an experimental investigation was carried out using DPSK systems over 300 km transmission distance. Various results obtained showed an improvement of system Q factor of the order of 1 dB.
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02 Effect of Spreading Sequence, Modulation Schemes, Number of Users and Detection Technique on the Performance of MC-CDMA System
Shivani Sharma, Pratibha Nagaich

In this paper the BER performance of the Multi Carrier Code Division Multiple Access (MC-CDMA) is evaluated over Rayleigh fading channel. MC-CDMA is a promising technique to full fill the high speed data transmission requirements of today’s diversified wireless networks. MC-CDMA system incorporates the advantage of two schemes which are Orthogonal Frequency Division Multiplex (OFDM) and the code division multiple access (CDMA). In this paper we present MATLAB simulation results to show the effect of various parameters such as: Spreading sequence, Modulation schemes, Number of users and Detection technique on the performance of the MC-CDMA system. Bit Error Rate (BER) and Signal to Noise Ratio (SNR) are chosen as the performance metrics for comparison of the simulation results.
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Impact Factor

Index Copernicus Evaluation Report 2011

Sr. No Name of Journals Value
1. International Journal of Computer Science and Technology (IJCST) 5.09
2. International Journal of Electronics & Communication Technology (IJECT) 5.09
3. International Journal of Management & Business Studies (IJMBS) 5.09
4. International Journal of Education and Applied Research (IJEAR) Pending
5. International Journal of Research in Mechanical Engineering and Technology (IJRMET) Pending