scispace - formally typeset
Search or ask a question
Author

Malika Singh

Bio: Malika Singh is an academic researcher. The author has contributed to research in topics: Additive white Gaussian noise & Phase-shift keying. The author has an hindex of 1, co-authored 1 publications receiving 11 citations.

Papers
More filters
01 Jan 2012
TL;DR: The bit error rate (BER) analysis of binary phase shift keying (BPSK) modulated signal detection is performed in presence of additive white Gaussian noise and the performance of modulation techniques can be compared with theoretical values.
Abstract: In this paper the bit error rate (BER) analysis of binary phase shift keying (BPSK) modulated signal detection is performed in presence of additive white Gaussian noise. Through this technique we have analyzed and calculated probability of error with systems operating with the additive white Gaussian noise and by doing so the performance of modulation techniques can be compared with theoretical values.

11 citations


Cited by
More filters
Journal ArticleDOI
TL;DR: In this article, the performance signature of modulation techniques based on low earth orbit (LEO)/medium Earth orbit (MEO) intersatellite optical wireless communication has been investigated.
Abstract: Summary This paper has deeply investigated the performance signature of modulation techniques based low earth orbit (LEO)/medium earth orbit (MEO) intersatellite optical wireless communication syst...

81 citations

27 Apr 2014
TL;DR: The literature review on the different digital modulation techniques which are generally used for the wireless communication is presented and the Worldwide interoperability for Microwave Access (Wi-max) uses combinations of different modulation schemes.
Abstract: Wireless communications has become an emerging and fastly growing field in our modern life and creates enormous impact on nearly every feature of our daily life A tremendous technological transformation during the previous two decades has provided a potential growth in the field of digital communication and lot of latest applications and technologies are coming up every day due to these valid reasons Digital modulation schemes contribute to the evolution of mobile communications by increasing the capacity, speed as well as the quality of the wireless network In communication, the concept of modulation is a prime factor because without an appropriate modulation scheme, it would be impossible to achieve an expected throughput Available bandwidth, permissible power and inherent noise level of the system are the constraints which should be considered while developing the communication systems Due to error-free capability in digital modulation, it is preferred over the analogue modulation techniques The Worldwide interoperability for Microwave Access (Wi-max) uses combinations of different modulation schemes which are BPSK, QPSK , 4-QAM AND 16-QAM and it is a promising technology which offers high speed voice, video and data services In this paper the literature review on the different digital modulation techniques which are generally used for the wireless communication is presented

36 citations

Journal ArticleDOI
TL;DR: The approximations proposed in this paper present a high accuracy for the complete domain and are handy and easy computable, avoiding the application of special numerical algorithms.
Abstract: Abstract In this work, we propose to approximate the Gaussian integral, the error function and the cumulative distribution function by using the power series extender method (PSEM). The approximations proposed in this paper present a high accuracy for the complete domain [–∞,∞]. Furthermore, the approximations are handy and easy computable, avoiding the application of special numerical algorithms. In order to show its high accuracy, three case studies are presented with applications to science and engineering.

14 citations

Proceedings ArticleDOI
27 Mar 2019
TL;DR: A comprehensive evaluation of intercell interference and BER on the physical downlink channel of an LTE cellular network is undertaken and results were obtained for BER considering different adaptive modulation and also for simulation of the PDSCH transceiver which depicts the effect of inter-cell interference on the downlink throughput.
Abstract: In this paper, a comprehensive evaluation of intercell interference and BER on the physical downlink channel of an LTE cellular network is undertaken. Because spectrum bandwidth is a scarce resource, operators are compelled to reassign frequency in a process called frequency reuse. However, the downlink channel of the currently deployed LTE network in Ghana, has low average throughput and data rate. This results from the fact that an interfering cell from adjacent eNodeB interrupts with the serving eNodeB. For cell-edge users (CEUs), the effect of inter-cell interference is especially severe. MATLAB was used to build models and to carry out simulations on the evaluation of this form of interference in LTE network. Simulation results were obtained for BER considering different adaptive modulation and also for simulation of the PDSCH transceiver which depicts the effect of inter-cell interference on the downlink throughput.

3 citations

Proceedings Article
04 Sep 2013
TL;DR: This paper presents the hardware simulation of a BPSK Modulator and Demodulator using Matlab/Simulink environment and System Generator, a tool from Xilinx used for FPGA design of themodulator and demodulator.
Abstract: This paper presents the hardware simulation of a BPSK Modulator and Demodulator using Matlab/Simulink environment and System Generator, a tool from Xilinx used for FPGA design of the Modulator and Demodulator. VHDL programming code is used to generate BPSK digital signal. The modulator and demodulator VHDL algorithm has been simulated in MATLAB R2009a and system generators Xilinx ISE 12.1. This paper also focuses on error performance parameter of BPSK modulation and demodulation schemes in AWGN channel.

3 citations