NOMA and massive MIMO assisted physical layer security using artificial noise precoding

Low-complexity and fast-convergence linear precoding based on modified SOR for massive MIMO systems

In this globe, millions of people are deaf or visually impaired. It is exceptionally rare case someone to be born with this condition, but the possibility of developing deafness or blindness later in life is very probable. The conception of the navigational assistance system has been a remarkable techno-logical advancement. With the developments of wireless communications, the deaf and visually impaired people's assistive device demand also growing for safe and reliable movement. The aim of the research proposed a fuzzy-based simulation model to assist deaf and visually impaired people for safe mobility. For accurate simulation data analysis based on maximum possibility used fuzzy logic interface tools with multiple inputs and output systems. The fuzzy logic interface rules have been prepared based on deaf or visually impaired people's requirements and specifications. The developed model helps the user to avoidance objects and safe navigation.

Fuzzy-Based Smart Path Guidance System for Visually Impaired and Deaf Person

Massive Multiple Input Multiple Output (massive MIMO) achieves its great spectrum efficiency primarily by exploiting spatial multiplexing, that is, by applying a large number of MIMO layers to several users at once. The power consumption in the massive MIMO base station (BS) determines the huge number of the antenna elements and ports that the hardware need to operate it. The actual deployment scenarios with varied user demands are the main focus of this research. While typical massive MIMO processing would continue to use a large portion of hardware power during periods of low user activity, spectral efficiency at its highest level could not be utilized due to the low user density, resulting in decreased resource cost and energy efficiency (EE). The Minimum Mean Square Error (MMSE), Zero Forcing (ZF), and Maximum Ratio Transmission (MRT) algorithms were used in this study to examine how hybrid systems array topologies impact spectrum efficiency, average user throughput, and power consumption. It also shows how to construct a massive MIMO system for a certain goal scenario with much more EE while preserving a desired service quality. 

Studying and Investigation of Energy Efficiency in massive MIMO Using MMSE, ZF and MRT Algorithms

Massive Multiple Input Multiple Output (massive MIMO) achieves its great spectrum efficiency primarily by exploiting spatial multiplexing, that is, by applying a large number of MIMO layers to several users at once. The power consumption in the massive MIMO base station (BS) determines the huge number of the antenna elements and ports that the hardware need to operate it. The actual deployment scenarios with varied user demands are the main focus of this research. While typical massive MIMO processing would continue to use a large portion of hardware power during periods of low user activity, spectral efficiency at its highest level could not be utilized due to the low user density, resulting in decreased resource cost and energy efficiency (EE). The Minimum Mean Square Error (MMSE), Zero Forcing (ZF), and Maximum Ratio Transmission (MRT) algorithms were used in this study to examine how hybrid systems array topologies impact spectrum efficiency, average user throughput, and power consumption. It also shows how to construct a massive MIMO system for a certain goal scenario with much more EE while preserving a desired service quality.

Nowadays, Energy Efficiency (EE) has turned into a buzzword for 5G. Consequently, Massive MIMO (MMIMO) technologies have attained a great attention for Multi-User Communication scenario. In this paper, the Minimum Mean Square Error (MMSE), the Maximum Ratio Transmission (MRT) and the Zero Forcing (ZF) precoding methods are analyzed for MMIMO technique from an EE perspective. The results show the optimization of EE against the amount of clients, amount of assigned base stations as well as launch input power in the system respectively.

Maximum Energy Efficiency of Three Precoding Methods for Massive MIMO Technique in Wireless Communication System

Segmented display systems are popular for showing short messages on different electronic devices. Many research works have been done for English letters and numerals for segmented display system, but a few are done for Bengali letters. Compound letters are in some cases essential to deliver a Bengali message on a segmented display system, but the models designed till now are barely distinguishable for their compromised shapes. We have proposed an N-segmented display model for mostly used 113 Bengali compound letters with their precise shapes and derived the simplified logical expressions for all segments, which can be used for IC fabrication for the display system. Also, we have compared our model with all related published works and have shown visible improvements in case of better shapes of the letters and found the segments-to-letter ratio as 2.61 which is comparatively less in considering better understandable and undistorted shapes of the letters.

A Brief Representation of an N-Segmented Display Model for Bengali Compound Letters with Undistorted Shapes

Segmented display systems are used for showing short messages or instructions on consumer electronics, notice boards, billboards in traffic areas or public transport stations, etc. To illustrate the individual letters as a meaningful word and consequently for a complete sentence, we need to segmentize individual letters. For Bengali language, only a few models are proposed for the consonant letters, and the output of the letters on display are barely distinguishable. In this paper, we have introduced a structural model for all the Bengali consonant letters for segmentation with fine, understandable shapes of the letters in comparison to existing models. We have ensured less number of segments for each letter to reduce the cost for fabrication of the circuits in VLSI systems. We also have compared the shapes of outputs of our model with existing works and proved it better till now.

Segmentation of Bengali Consonant Letters with Excellent Shapes

Because of the immense necessity of displaying short messages on electronic devices the segmented display system has become greatly popular. Numerous research activities are done to represent English and Bengali letters on segmented display. On the other hand, no research work is found till now for Arabic letters. This paper brings an accurate and systematic segmentation method for Arabic letters. The points covered by each segment, the segments needed for each letter, the truth table for the letter, simplified expressions and the logic circuits of the segments are given. In this paper, we have generated all the Arabic letters with understandable and proper shapes. Also, the segment-to-letter ratio is found to be less comparatively.

Segmentation of Arabic Letters on Dot Matrix Play Board

It is tough to represent the Bengali consonant letters holding up their actual shape over the segmented display system, as their structural patterns are not straight. Due to the curved structure, actualizing the consonant letter is not easy enough. In the recent past, bunches of research have done to bring the actual shape of the Bengali consonants in the segmented display system by the researchers. But they failed to maintain the actual shapes for the character. So, a display model to show all 39 Bengali consonant letters with their exact shapes and derived the simplified logical expressions for all segments have proposed by us, which can be utilized for IC manufacture for the display system. Besides this, contrasting our model with all published distributed works and has indicated unmistakable upgrades in the event of better shapes of the letters have done by us.

Muhammad Nurul Islam

Papers

Maximum Energy Efficiency of Three Precoding Methods for Massive MIMO Technique in Wireless Communication System

A Brief Representation of an N-Segmented Display Model for Bengali Compound Letters with Undistorted Shapes

Segmentation of Bengali Consonant Letters with Excellent Shapes

Segmentation of Arabic Letters on Dot Matrix Play Board

Design and Actualize the Bengali Consonant with Appropriate Appearances in the Segmented Display System