Massive multiple-input and multiple-output (MIMO) systems have become the most persuasive technol... more Massive multiple-input and multiple-output (MIMO) systems have become the most persuasive technology for 5G as it increased the energy efficiency gigantically as compared to other wireless communication systems. Being the most vibrant research technology in the communication sector, this research work is based on the optimal model development of energy-efficient massive MIMO systems. The proposed model is a realistic model that augmented the spectral efficiency (SE) of massive MIMO systems where a multi-cell model scenario is considered. Channel estimation is carried out at the base stations (BSs) based on uplink (UL) transmission while the minimum mean-squared error (MMSE), Element-wise MMSE, and Least-square (LS) estimators are used for the estimation. We analyze the achievable SE of the UL based on the MMSE channel estimator with different receive combining schemes. Moreover, the downlink (DL) transmission model is also modelled with different precoding schemes by taking the same...
2020 International Conference on Engineering and Emerging Technologies (ICEET), 2020
Internet of Things is an enticing paradigm for the last few decades and becoming popular in the r... more Internet of Things is an enticing paradigm for the last few decades and becoming popular in the researcher’s community. The conversion of every physical object into the smart object is their goal. Besides, the idea of emerging IoT with Social networking concept has also gained significant popularity by which the smart objects can broadly interact with each other. The resulting paradigm Social Internet of Things (SIoT) is the promising platform for contemporary applications and services. Presently, the SIoTs proved to be ingenious, but the IoTs growing exponentially which can evolve a challenging situation while probing precise service or object among billions of objects. Small-world phenomena have exposed some exciting facts and instigated scholars to discover the concealed connections between two people around the globe. This research consolidates the Social IoT technique with the concept of small-world. By incorporating the properties of small-world in Social IoTs, we influential ...
This paper is focused on the channel modeling techniques for implementation of narrowband power l... more This paper is focused on the channel modeling techniques for implementation of narrowband power line communication (NB-PLC) over medium voltage (MV) network for the purpose of advanced metering infrastructure (AMI). Three different types of models, based on deterministic method, statistical method, and network parameters based method are investigated in detail. Transmission line (TL) theory model is used to express the MV network as a two-port network to examine characteristics of sending and receiving NB-PLC signals. Multipath signal propagation model is used to incorporate the effect of multipath signals to determine the NB-PLC transfer function. A Simulink model is proposed which considers the values of MV network to examine the characteristics of NB-PLC signals. Frequency selectivity is also introduced in the impedances to compare variations and characteristics with constant impedances based MV network. A state-of-the-art mechanism for the modeling of capacitive coupling device,...
Massive multiple-input and multiple-output (MIMO) systems have become the most persuasive technol... more Massive multiple-input and multiple-output (MIMO) systems have become the most persuasive technology for 5G as it increased the energy efficiency gigantically as compared to other wireless communication systems. Being the most vibrant research technology in the communication sector, this research work is based on the optimal model development of energy-efficient massive MIMO systems. The proposed model is a realistic model that augmented the spectral efficiency (SE) of massive MIMO systems where a multi-cell model scenario is considered. Channel estimation is carried out at the base stations (BSs) based on uplink (UL) transmission while the minimum mean-squared error (MMSE), Element-wise MMSE, and Least-square (LS) estimators are used for the estimation. We analyze the achievable SE of the UL based on the MMSE channel estimator with different receive combining schemes. Moreover, the downlink (DL) transmission model is also modelled with different precoding schemes by taking the same...
2020 International Conference on Engineering and Emerging Technologies (ICEET), 2020
Internet of Things is an enticing paradigm for the last few decades and becoming popular in the r... more Internet of Things is an enticing paradigm for the last few decades and becoming popular in the researcher’s community. The conversion of every physical object into the smart object is their goal. Besides, the idea of emerging IoT with Social networking concept has also gained significant popularity by which the smart objects can broadly interact with each other. The resulting paradigm Social Internet of Things (SIoT) is the promising platform for contemporary applications and services. Presently, the SIoTs proved to be ingenious, but the IoTs growing exponentially which can evolve a challenging situation while probing precise service or object among billions of objects. Small-world phenomena have exposed some exciting facts and instigated scholars to discover the concealed connections between two people around the globe. This research consolidates the Social IoT technique with the concept of small-world. By incorporating the properties of small-world in Social IoTs, we influential ...
This paper is focused on the channel modeling techniques for implementation of narrowband power l... more This paper is focused on the channel modeling techniques for implementation of narrowband power line communication (NB-PLC) over medium voltage (MV) network for the purpose of advanced metering infrastructure (AMI). Three different types of models, based on deterministic method, statistical method, and network parameters based method are investigated in detail. Transmission line (TL) theory model is used to express the MV network as a two-port network to examine characteristics of sending and receiving NB-PLC signals. Multipath signal propagation model is used to incorporate the effect of multipath signals to determine the NB-PLC transfer function. A Simulink model is proposed which considers the values of MV network to examine the characteristics of NB-PLC signals. Frequency selectivity is also introduced in the impedances to compare variations and characteristics with constant impedances based MV network. A state-of-the-art mechanism for the modeling of capacitive coupling device,...
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Papers by Rao Asif