Individual and Mutual Feature Processed ELM Model for EEG Signal Based Brain Activity Classification
BCI deals to map the brain signal or activity to evaluate the human behaviour, activities or disease. The aim of this research is to utilize the different features of EEG signal to recognize the brain activity. The composite feature model with ELM ...
Identifying Causal Relationships in Mobile App Issues: An Interval Type-2 Fuzzy DEMATEL Approach
The software development industry is largely influenced by the growing popularity of mobile applications (apps). Mobile apps are dynamic; therefore, classical software development approaches cannot be applied in this context. Specific needs of the ...
An Optimize-Aware Target Tracking Method Combining MAC Layer and Active Nodes in Wireless Sensor Networks
Target tracking applications are very popular in wireless sensor networks (WSN) as they can be used in industrial, healthcare, smart home, etc. This study proposes a method for reducing energy consumption in WSNs, considering target tracking. A ...
Development of Optical Code Division Multiple Access Based System Using Spectral Amplitude Coding via Fiber Bragg Gratings (FBGs)
The multiple user’s based transmission systems are developed in the past using various multiple access techniques for fibre optic communications. Among these multi-user systems, the transmission using Optical Code Division Multiple Access is ...
High-Performance GLR Detector for Moving Target Detection in OFDM Radar-Based Vehicular Networks
Nowadays, orthogonal frequency division multiplexing (OFDM) radars have been used in many applications such as target detection and recognition in vehicular networks and surveillance systems, according to their frequency diversity property. The ...
Performance Analysis of RSS-Based Localization in Wireless Sensor Networks
In this paper, localization error of the received signal strength (RSS)-based method in mixed LOS/NLOS conditions is analysed. In contrast to the time of arrival, time-difference of arrival and angle of arrival, RSS measurements are low-cost and ...
Performance Analysis and FPGA Prototype of Variable Rate GO-OFDMA Baseband Transmission Scheme
- Akash Agarwal,
- Vibhooti Kumar Sinha,
- Rakesh Palisetty,
- Preetam Kumar,
- Kailash Chandra Ray,
- Kamlesh Kumar,
- Tulika Pandey
To fulfill the increasing demand for high speed Variable Bit Rate (VBR) broadcast services with reliable Quality of Service, Group Orthogonal-Orthogonal Frequency Division Multiple Access (GO-OFDMA) and Variable Spreading Length Multicarrier Code ...
Cooperative Communication in Physical Layer Security: Technologies and Challenges
Cooperative communication utilizes node cooperation for enhancing the diversity gains during secure communication against eavesdropping and jamming which are the common threats to information security in wireless networks. This paper aims to ...
DTN Routing Protocols on Two Distinct Geographical Regions in an Opportunistic Network: An Analysis
There is a critical scenario in geographical regions where the exchange of information between two mobile nodes could hardly be possible if there does not develop a straight path between them. To overcome this problem an opportunistic path is ...
Symmetrical Hexagonal Monopole Antenna with Bandwidth Enhancement Under UWB Operations
In certain a UWB applications, a hexagonal monopole antenna are desired but existing solutions have CPW fed structures. In this structure a compact simple symmetrical hexagonal shaped monopole antenna with defected ground plane is presented. ...
Device Discovery Signal Design for Proximal Devices in D2D Communication
To initiate Device to Device (D2D) communication, proximal device discovery is the most important problem in the contemporary cellular networks. By using reference signal (RS), devices can be discovered for a D2D companion through the proximal ...
Compensation System Design and Comparison of Very High Doppler Frequency Effect
One of the serious problems in the low earth orbit (LEO) satellite communication system is the very high Doppler frequency effect since the LEO satellite system runs very fast to keep the orbit altitude. Especially, this problem produces the ...
Sapphire Stacked Rectangular Dielectric Resonator Aperture Coupled Antenna for C-Band Applications
This paper presents a novel design of antenna using sapphire. An aperture coupled two- layer stacked rectangular dielectric resonator antenna structure design consists of sapphire and TMM13i. Due to sapphire and TMM13i physical attributes such as ...
Learning-Based Relay Selection for Cooperative Networks with Space–Time Network Coding
Space–time network coding has recently been used in cooperative communication to mitigate the problem of transmission delay in wireless systems as well as handle the issue of imperfect synchronization. However, using all relays for transmission to ...
SATC: A Simulated Annealing Based Tree Construction and Scheduling Algorithm for Minimizing Aggregation Time in Wireless Sensor Networks
Data collection is one of the most important task in wireless sensor networks where a set of sensor nodes measure properties of a phenomenon of interest and send their data over a routing tree to the sink. In this paper, we propose a new simulated ...
Novel Approach of Key Predistribution for Grid Based Sensor Networks
Grid based sensor networks are significant for applications such as monitoring goods in a warehouse, studying traffic level of city streets, monitoring energy consumptions through smart meters deployed in a colony of houses. We propose a novel Key ...
Optimal Path Planning for a Biomedical Combined WSN System via RSSI and LQI
In practical WSNs, such as biomedical monitoring system applications, the sensor nodes are deployed indoors. The obstacles may exist because of the area setting which may reduce the communicatiuon range of nodes. Those nodes will be isolated from ...
Reducing Near–Far Problem in a VDSL Network with Modified IWF Algorithm by Using Fixed Spectral Mask Yielding Improved Data Rate of Near End User
This paper presents a new technique for reducing the ‘Near–Far’ problem with modified IWF algorithm by using the fixed spectral mask yielding improved data rate of near end user. It is shown through graphical results that the proposed technique ...
A Probabilistic Model of Clock Offset Estimator (PMCOE) for Clock Synchronization in Wireless Sensor Network
Synchronization of clock within a wireless sensor network epitomizes crucial problems in the efficient and reliable operation of the sensors. This paper discusses a novel probability theory based clock offset estimator for various clock ...
An Improved Adaptive Modulation and Coding for Cross Layer Design in Wireless Networks
Recent research in cross layer design focuses on a number of integration techniques with physical layer to maintain a strategic distance from the shortcomings of Open Systems Interconnect (OSI) layer and also to guarantee the Quality of Service (...
ECC Based Secure Sharing of Healthcare Data in the Health Cloud Environment
In today’s world, Cloud computing based health cloud is an effective platform for enhancing e-health productivity, i.e., healthcare professionals can provide medical service by accessing health information on any device in any location at any ...
Evaluating the Performance of Cooperative NOMA with Energy Harvesting Under Physical Layer Security
In this paper, we consider a non-orthogonal multiple access system with imperfect successive interference cancellation and physical layer security where the source node communicates with Users via an energy harvesting relay node. This node uses a ...
A Novel Speech Enhancement Method Using Fourier Series Decomposition and Spectral Subtraction for Robust Speaker Identification
This paper presents a novel speech enhancement approach by combining Fourier series expansion and spectral subtraction. This approach is implemented in speaker identification systems where degraded speech could result in high false speaker ...
Overlay Cognitive Radio Based on OFDM with Channel Estimation Issues
Cognitive radio (CR) has been proposed as a technology to improve the spectrum efficiency by giving an opportunistic access of the licensed-user spectra to unlicensed users. We consider an overlay CR consisting of a primary macro-cell and ...
Optimal Energy Harvesting Strategy in Relaying Networks: Dynamic Allocation Scheme and Performance Analysis
This paper evaluates the performance of a wireless powered communications system, where an energy-aware relay can ability of controlling proper energy harvesting parameters for obtaining maximal throughput. Considering a power splitting approach, ...
Estimation of Distribution Algorithm for Joint Resource Management in D2D Communication
Device to device (D2D) communication technique is one of the established means to enhance data rate in next generation wireless systems. Use of same resource of cellular users by D2D pairs creates interference problem among users. Simultaneous ...
Hybrid Type-2 Fuzzy Based Channel Estimation for MIMO-OFDM System with Doppler Offset Influences
The channel estimation methods track and predict the variation in channel characteristics, so that the original signal can be obtained after nullifying the channel induced influences. The channel estimation methods impact the overall performance ...
Enforcement of Dynamic Sector Division for Massive MIMO Using Code Fed Antenna Arrays
A PAT code fed arrays are utilized to implement a dynamic sector division in a simple way to enforce following the sectors’ varying data traffic in modern multiple access environment. However, the previous solutions include hardware installations ...
On Characteristic Functions of Products of Two Random Variables
Motivated by a recent paper published in IEEE Signal Processing Letters, we study the distribution of the product of two independent random variables, one of them being the standard normal random variable and the other allowed to follow one of ...