yusuke1997/dblp-id-title huggingface dataset:
An Opportunistic Directional MAC Protocol with Pulse/Tone Exchange in Wireless Ad-Hoc Networks
Design and Implementation of Hybrid Compression Algorithm for Personal Health Care Big Data Applications
Two Proposed Blind Equalizers Using Different Constellation Matched Error Functions for QAM Signals
Automatic Modulation Classification for Low SNR Digital Signal in Frequency-Selective Fading Environments
Effective Interference Cancellation Schemes for Device-to-Device Multicast Uplink Period Underlaying Cellular Networks
Feature Extraction Method for Condition Monitoring of Rolling Element Bearings Based on Dual-Tree Complex Wavelet Packet Transform and VMD
A Novel Security Scheme for the Smart Grid and SCADA Networks
Application of Genetic Algorithm in Automatic Train Operation
Correction to: A Detailed Evolutionary Scrutiny of PEIS with GPS Fleet Tracker and AOMDV-SAPTV Based on Throughput, Delay, Accuracy, Error Rate, and Success Rate
Error Probability and Capacity Performance Analysis over Composite Cascade Channels of Relay Networks
Hybrid Differential Evolution Optimization for the Vehicle Routing Problem with Time Windows and Driver-Specific Times
Turbo Trellis Coded Modulation with Enhanced Transition Metric over Rayleigh Fading Channels
An Ad Hoc Routing Protocol with Multiple Backup Routes
Compact Leakage-Free ID-Based Signature Scheme with Applications to Secret Handshakes
Erratum to: A Fittingness Factor-Based Spectrum Management Framework for Cognitive Radio Networks
A Reliable Time-Domain Spectrum Hole Prediction for Cognitive Radio Networks Using Regularized Multi-Layer Perceptron
The Performance of ST-Turbo TC Based on the Improved Log-MAP Algorithm
Analysis of Low Power Consumption Techniques on FPGA for Wireless Devices
DenseNet-121 Model for Diagnosis of COVID-19 Using Nearest Neighbour Interpolation and Adam Optimizer
A Comparative Study of Spread OFDM with Transmit Diversity for Underwater Acoustic Communications
Traffic State Estimation of Signalized Intersections Based on Stacked Denoising Auto-Encoder Model
Remote Patient Monitoring Within a Future 5G Infrastructure
Effective Aggregate Data Collection and Enhanced Network Lifetime Using Energy Efficient Aggregation Data Convening Routing in Wireless Sensor Network
Intelligent Query-Based Data Aggregation Model and Optimized Query Ordering for Efficient Wireless Sensor Network
On Formal Modeling and Validation of Wireless Sensor Network Protocols
An Extensive Review on QoS Enhancement in MANET Using Meta-Heuristic Algorithms
Mouse Movement Pattern Based Analysis of Customer Behavior (CBA-MMP) Using Cloud Data Analytics
Improving RCPC Codes in Rate-Adaptive Optical Wireless Communications Systems
Analytical Description of Self-Interference in Direct Sequence Spread Spectrum Communications
Cooperative Space-Time Block Codes for Wireless Video Sensor Networks
Multicasting with selective delivery: a SafetyNet for vertical handoffs
A Highly Reusable Code Assignment Approach with Modified Busy Tone Signaling for CDMA-Based Ad Hoc Networks
Unsupervised Optimization for Universal Spatial Image Steganalysis
Energy-Optimal Uplink Scheduling in Mobile Cloud Systems
An Adaptive Data Center Manager for Data-Oriented Information Centric Networking
Algorithm Analysis for Big Data in Education Based on Depth Learning
A New Improved First-Order Approximate Decorrelating Detector for DS-CDMA Communication Systems
Correction to: An Energy Efficient Protocol to Mitigate Hot Spot Problem Using Unequal Clustering in WSN
Robust Power Control for OFDM-Based Cognitive Radio Networks with QoS Guarantee
The Research of Slot Adaptive 4D Network Clustering Algorithm Based on UAV Autonomous Formation and Reconfiguration
A Software Radio Implementation of Centralized MAC Protocol for Cognitive Radio Networks
P-AODV: A Priority Based Route Maintenance Process in Mobile Ad Hoc Networks
Transmit Antenna Selection Schemes for Quadrature Spatial Modulation
On Detecting White Space Spectra for Spectral Scavenging in Cognitive Radios
A Novel Multiuser Detector Based on Restricted Search Space and Depth-First Tree Search Method in DS/CDMA Communication Systems
A Novel Hybrid Technique for PAPR Reduction of Rayleigh Fading Channel Based OFDM System
Secured Soft Combination Schemes Against Malicious-Users in Cooperative Spectrum Sensing
An Azimuth-Frequency Domain Geometric Model for Ultrawide Bandwidth Signal Propagation
Estimation of Visual Performance Enhancement with Spatial Filters for an Image Transmission over a Turbulent OWC Link
Precoded Transmit Path Diversity in FS-OFDM on UWB Channels
E-FEERP: Enhanced Fuzzy Based Energy Efficient Routing Protocol for Wireless Sensor Network
A Review: An Efficient and Reliable Secure Routing Mechanism with the Prevention of Attacks in Mobile Ad-Hoc Network (MANET)
Efficient Back-off Mechanism for Multimedia Support in 802.11e EDCA Wireless Ad-Hoc Networks
A Novel Trust-Aware Geographical Routing Scheme for Wireless Sensor Networks
GAMMA: Genetic Algorithm for Link-Adaptive Joint Path and Capacity Design in Mobile Multi-Hop Relay System
A Multiagent Based Scheme for Unlicensed Spectrum Access in CR Networks
Performance Comparison of Advanced Receiver Structures for Dispersive DECT Channels
ACO and PSO Algorithms for Developing a New Communication Model for VANET Applications in Smart Cities
Jointly RVM Based Channel Estimation and PAPR Reduction Using Modified Tabu Search Algorithm in Power Line Communication Systems
Proposed Model for Radio Wave Attenuation due to Rain (RWAR)
Performance Investigation of CDMA/PRMA with Imperfect Power Control in TDD Cellular Systems
Data Privacy Preservation and Trade-off Balance Between Privacy and Utility Using Deep Adaptive Clustering and Elliptic Curve Digital Signature Algorithm
Generalized Selection Combining Scheme for Orthogonal Space - Time Block Codes with M-QAM and M-PAM Modulation Schemes
Research on Multi-objective Job Shop Scheduling with Dual Particle Swarm Algorithm Based on Greedy Strategy
Multi-objective Binary Reinforced Cuckoo Search Algorithm for Solving Connected Coverage target based WSN with Critical Targets
Main Effects Ensured by Symmetric Circular Slots Etched on the Radiating Patch of a Compact Monopole Antenna on the Impedance Bandwidth and Radiation Patterns
Pilot Contamination Suppression Based Coordination in Multi-cell Massive MIMO Systems
Blind Adaptive Weighted Aggregation Scheme for Event Detection in Multihop Wireless Sensor Networks
Entropy-Based Anomaly Detection in a Network
Wiener Filter Based Channel Estimation for High-Speed Communication Environments
Performance of Systematic Distance-4 Binary Linear Block Codes with Continuous Phase Frequency Shift Keying over MIMO Systems
Editorial: Special Issue in Privacy, Security and Trust for Mobile Systems
The Concept of a Personal Distributed Environment for Wireless Service Delivery
An Adaptive Covariance Matrix Based on Combined Fully Blind Self Adapted Method for Cognitive Radio Spectrum Sensing
Multi-Source Video Transmission with Minimized Total Distortion Over Wireless Ad Hoc Networks
Energy Balance Based Uneven Cluster Routing Protocol Using Ant Colony Taboo for Wireless Sensor Networks
Real Time Monitoring of Environmental Parameters Using IOT
Shift Estimation with Delayed Correlation Cyclic-Selective Mapping (Cyclic-SLM) PAPR Reduction in OFDM System
Adaptation of an Intelligent Mobile Assistant Medical (IMAM) of the Heterogeneous Data for the Telemedicine Services: Design and Implementation
An Adaptive Parameter Setting Algorithm to Enhance Performance in Self-Organizing Bluetooth Low Energy Networks
An Improved RFID Authentication Protocol Based on Group Anonymous Model
Power Consumption Optimization Strategy for Wireless Networks
Curvelet Transform Based Watermarking for Telemedicine
Time Reversal Based Timing Acquisition for Ultra-Wideband Wireless Communications: Numerical and Experimental Study
A BER and 2-Hop Routing Information-Based Stable Geographical Routing Protocol in MANETs for Multimedia Applications
Erratum to: Wireless LAN Access Point Placement Based on User Mobility
Speech Recognition Using Enhanced Features with Deep Belief Network for Real Time Application
ECC Based Secure Sharing of Healthcare Data in the Health Cloud Environment
Interference Management with Cell Selection Using Cell Range Expansion and ABS in the Heterogeneous Network Based on LTE-Advanced
Fuzzy Logic Based Multi-criteria Intelligent Forward Routing in VANET
Adaptive Perturbation-Based Opportunistic Beamforming Design in Limited Feedback IRS-Assisted mmWave Systems
A Compact Size Capacitive Load Dual Band Planar Inverted-F Implant Antenna for Biomedical Services
Physical Features Based Authentication Technique and Key Management for IoT Networks
Underwater Acoustic Multimedia Communication Based on MIMO-OFDM
An Attack Resilient Framework in Cognitive Radio Network Environment for Inter-domain and Intra-domain Communication
Signal Space Diversity Augmented Space Time Block Coded Communication System
Intelligent MBWIMA/UMTS Protocol Using SDMA Scheduling in UTRA TDD Mode
Energy Efficient Vital Signs Monitoring System (VSMS) Using Wireless Sensor Networks
Efficient Framework for Video Communication in IoT Applications
Data Aided Iterative Channel Estimation in OFDM Systems Using a Controlled Superimposition of Training Sequences
Using a Method Based on a Modified K-Means Clustering and Mean Shift Segmentation to Reduce File Sizes and Detect Brain Tumors from Magnetic Resonance (MRI) Images
Fault Tolerant Routing Protocol in Cognitive Radio Networks
Network Selection Based on Weight Estimation of QoS Parameters in Heterogeneous Wireless Multimedia Networks
Multiband, Circular Microstrip Patch Antenna for Wireless Applications
Weighted Hyperbolic DV-Hop Positioning Node Localization Algorithm in WSNs
Secure Data Access and Sharing Scheme for Cloud Storage
Optimal Scheme for the Detection and Classification of Clone Node Attack in WSN Using TAIGBRFCNIA
FRAS: Fair Rate Adaptation Scheme for Directional Multicast in 60 GHz Multi-Gigabit WLANs
Hybrid Algorithm to Detect DDoS Attacks in VANETs
Performance Analysis and Enhancement for Opportunistic Analog Network Coding with Imperfect CSI
Constellation Rearrangement: Enhancement for Multilevel Modulation Formats and Transmit Diversity
On the Classification of Modulation Schemes Using Higher Order Statistics and Support Vector Machines
A Low Complexity and Effective Rapid Channel Tracking Scheme for UWB Multiple-Access Systems
Erratum to: Particle Swarm Optimization Aided Serial Acquisition in Distributed OSCFAR and CMLD for DS-CDMA Systems in Fading Channels
Distributed Antenna System for Mitigating Shadowing Effect in 60 GHz WLAN
Beamspace Root-MUSIC Algorithm for Joint DOD DOA Estimation in Bistatic MIMO Radar
Performance Investigation of Phishing Website Detection by Improved Deep Learning Techniques
Performance of Wireless Powered Multi-user Multi-relay Communication Networks with Outdated CSI
Simultaneous Wireless Information and Power Transfer with Finite-Alphabet Inputs
Underdetermined DOA Estimation Algorithm Based on an Improved Nested Array
Reactive Weight Based Buffer Management Policy for DTN Routing Protocols
Performance of Random Access Markov Modelling for Two-Way Buffer-Aided Relaying Networks with Wireless Assisted Links
Distributed Wi-Fi Interference Coordination for Dense Deployments
Experimental Analysis of Subscribers' Privacy Exposure by LTE Paging
Prototype Design and Implementation of an Automatic Control System Based on a BCI
A Cross-Layer Multi-Hop Simulator for IEEE 802.11e
Prunable Collision Free Random Interleaver Design
Wireless Network Simulation - Your Window on Future Network Performance
Novel Design of a Low Cost Flexible Transceiver Based on Multistate Digitally Modulated Signals Using Wi-Fi Protocol for Software Defined Radio
Steganalysis of DWT Based Steganography Technique for SD and HD Videos
An Efficient Compressive Sensing Routing Scheme for Internet of Things Based Wireless Sensor Networks
Editorial: Special Issue on "Wireless Future"
A Novel Analytical Modeling of Composite Cognitive Capability with an Overlay Sensing Approach
System Level Protection Against Side-Channel Attack Using High Performance Virtual Secure Circuit for Cryptographic Processor
Interference Mitigation Based on Radio Aware Channel Assignment for Wireless Mesh Networks
Optimum Time Diversity and BCH Codes for DS SS-CDMA Cellular Mobile Channels
Exploring Blockchain and Smart Contract Technology for Reliable and Secure Land Registration and Record Management
Construction of Dynamic Medical Information System for Digital Hospital Environments
Efficient Power Allocation for Multiuser Cognitive Radio Networks
Framework for Analysis of Transmission Rate Scheduling for Wireless CDMA Data Networks
Service Enhancement for User Equipments in LTE-A Downlink Physical Layer Network
On Modeling The Impact of Selfish Behaviors on Limited Epidemic Routing in Delay Tolerant Networks
Implementation of the Decorrelating Receiver for Asynchronous DS-CDMA Systems over Multipath Fading Channels
Secured Data Storage and Retrieval Algorithm Using Map Reduce Techniques and Chaining Encryption in Cloud Databases
Dual Ring Resonator Based 3D-Photonic Crystal For Add Drop Filter Using FDTD-Least Square Technique
Performance Analysis of Large Intelligent Reflecting Surface Aided Moderate MIMO for 5G Communication
Statistical Modeling of Aggregated Inter-contact Time in Different Opportunistic Networks and Its Applications
On Platform to Enable the Cognitive Radio Over 5G Networks
Performance Analysis of Non-identical Cascaded α-μ Fading Channels
Robotics in Medical Domain: The Future of Surgery, Healthcare and Imaging
An Anti-cropping Watermarking Method for Facial Images Using Prediction and Weber Ratio Techniques
Deep Learning Approaches for Analysing Papsmear Images to Detect Cervical Cancer
Enhancing Security Using Secure Authentication Model in Fog Computing Model
Internet of Things Applications: Opportunities and Threats
A Robust Seamless Handover Scheme for the Support of Multimedia Services in Heterogeneous Emerging Wireless Networks
Performance evaluation of a new BPSK-OFDM timing estimation algorithm
A Study on the Influence of Non-intelligence Factors on College Students' English Learning Achievement Based on C4.5 Algorithm of Decision Tree
Micro-Calcification Classification Analysis in Mammogram Images with Aid of Hybrid Technique Analysis
High Performance Process Variations Aware Technique for Sub-threshold 8T-SRAM Cell
A Session Layer Concept for Overlay Networks
A Note on "The Topp-Leone Lomax (TLLo) Distribution with Applications to Airbone Communication Transceiver Dataset"
Performance Analysis of Switch and Stay Combining System Over Fisher Snedecor (F) Fading Channels
A GHS-Based Intelligent Management Platform with IP-Camera Security System
HFTO: Hybrid Firebug Tunicate Optimizer for Fault Tolerance and Dynamic Task Scheduling in Cloud Computing
Interference Coordination Oriented User Association Scheme in Cellular Relay Networks
Compressed Spectrum Sensing for Wavelet Based Cognitive Heterogeneous Network over Multipath Fading
Performance Analysis of Solar Powered Wireless Sensor Network
Parameter Estimation Method for High-Speed Target Using Bistatic MIMO Radar with Dual-Frequency Transmitters
An Accurate and Very Low Complexity LMMSE Channel Estimation Technique for OFDM Systems
Hierarchical Group Location Tracking for Transportation Systems in Wireless Personal Communication Networks
Performance Analysis of Space-Time Coded CDMA System Over Nakagami Fading Channels with Perfect and Imperfect CSI
Residual Time Based Energy Harvesting for Framed Slotted ALOHA Based Wireless Powered IoT Networks
Disruptive Technologies, Services, or Business Models?
A Compact Wideband Rectangular Microstrip Antenna to the S and C Bands Applications
Intelligence Framework Based Analysis of Spatial-Temporal Data with Compressive Sensing Using Wireless Sensor Networks
A Joint Optimization Method for Mobile Edge Computing System Supporting Multi-User and Multi-UAV
Retraction Note: Security Aware Trusted Cluster Based Routing Protocol for Wireless Body Sensor Networks
Cooperative Transmission Scheme for Cell Interference Mitigation in Wireless Communication System
Performance Evaluation of Secondary Users Operating on a Heterogeneous Spectrum Environment
Study of Circular Complementary Split Ring Resonator on a Heterogeneous Substrate Material
An Efficient Approach for Big Data Aggregation Mechanism in Heterogeneous Wireless Connected Sensor Networks
Task Offloading in Fog Computing for Using Smart Ant Colony Optimization
An Integrated NOMA-based Framework with Adaptive Network Topology and Traffic Flow Control
Context-based Ontology-driven Recommendation Strategies for Tourism in Ubiquitous Computing
Switched-Diversity Approach for Cognitive Scheduling
Home Security System Using Wireless Sensors Network
A New Linearly Tunable RF MEMS Varactor with Latching Mechanism for Low Voltage and Low Power Reconfigurable Networks
Parameter Estimation for Correlated MIMO Channels with Frequency-Selective Fading
Analytical BER Performance Evaluation in SISO and MIMO Environments with SC-FDE Modulations and IB-DFE Receivers
Analytical Studies of Interaction between Mobility Models and Single-Multi Paths Routing Protocols in Mobile Ad Hoc Networks
Adaptive Multiuser Channel Estimation using Reduced Kalman/LMS Algorithm
Revisiting the RIP of Real and Complex Gaussian Sensing Matrices Through RIV Framework
A Novel Algorithm for Simple Hybrid of Adaptive Array and Equalizer
An Efficient Mobile Application for Identification of Immunity Boosting Medicinal Plants using Shape Descriptor Algorithm
A Comprehensive Review of Various Approach for Medical Image Segmentation and Disease Prediction
Adaptive Modulation and Coding with Selective Retransmission under OFDM signaling
Efficient User Based Authentication Protocol for Location Based Services Discovery Over Road Networks
Smart Handheld Based Human Activity Recognition Using Multiple Instance Multiple Label Learning
A Congestion Aware, Energy Efficient, on Demand Fuzzy Logic Based Clustering Protocol for Multi-hop Wireless Sensor Networks
Impulse Noise Suppression by Deep Learning-Based Receivers in OFDM Systems
Fast Duplicate Address Detection for Seamless Inter-Domain Handoff in All-IPv6 Mobile Networks
An Efficient Device Authentication Protocol Without Certification Authority for Internet of Things
Wireless Body Area Network Combined with Satellite Communication for Remote Medical and Healthcare Applications
An Energy Efficient QoS Supported Optimized Transmission Rate Technique in WBANs
Low-Complexity PAPR Reduction of MC-SS Signals in PAN
A VLF to UHF Propagation Model for Evaluation of High-Speed Railway Electromagnetic Interference in RF Monitoring Base-Stations
A Miniaturized Frequency Reconfigurable Patch Antenna for IoT Applications
Implementation of SSL/TLS Security with MQTT Protocol in IoT Environment
A Parasitic Antenna with Independent Pattern, Beamwidth and Polarization Reconfigurability
Detection of Harmful Content Using Multilevel Verification in Visual Sensor Data
On the (Im)Possibility of Receiving Security Beyond 2 l Using an l-Bit PRNG
Secured and Imperceptible Data Transmission Through Digital Audio Signal with Reduced Internal Noise
Guest Editorial: Special Issue on Advances on Wireless LANs and PANs
Resource Allocation and Offloading Decision of UAV Based on NOMA-MEC
Proposal of a Performance Bound Estimation Process for Adaptive Transmissions in Land Mobile Satellite Channels
A Deep Learning-Based Intelligent Decision Support System for Hyperspectral Image Classification Using Manifold Batch Structure in Internet of Things (IoT)
Analysis of Rain-Induced Attenuation at Ku-V Band Using Gamma Drop Size Distribution Model Over a Tropical Region
Reducing Near-Far Problem in a VDSL Network with Modified IWF Algorithm by Using Adaptive Spectral Mask Yielding Improved Data Rate of Near End Users
A Hybrid Security Scheme for Inter-vehicle Communication in Content Centric Vehicular Networks
Analyzing User Experience Design of Mobile Hospital Applications Using the Evaluation Grid Method
Dynamic 20/40/60/80 MHz Channel Access for 80 MHz 802.11ac
Performance Analysis of Wireless Sensor Networks with Non-coherent Cooperative Relay Nodes
Simple Indoor Path Loss Prediction Algorithm and Validation in Living Lab Setting
Optimizing the Use of Random Access Channels in GSM-GPRS
Non Orthogonal Multiple Access Using Reconfigurable Intelligent Surfaces
Analytic Hierarchy Processes for Spectrum Sharing in 5G New Radio Standard
A Comparison of the Performance Indices of Embedded EZ-Source Inverter Using Different PWM Techniques
Long-Term Spectrum Monitoring with Big Data Analysis and Machine Learning for Cloud-Based Radio Access Networks
An Effective Timing Synchronization Scheme for DHTR UWB Receivers
Access Control Protocol Based on Privacy Property of Patient in m-Healthcare Emergency
Quantifying Functional Connectivity Network Through Synchronization and Graph Theory Approaches for Seizure Prediction
Coalition Formation Game for Joint Power Control and Fair Channel Allocation in Device-to-Device Communications Underlaying Cellular Networks
On Blocking Probability of Multi-Beam CDMA Systems Using SBF Array Antennas
Complex Step-Shape Binary Offset Carrier Modulation for a Unitary Analytical Framework of GNSS Signals
QoS-Aware Optical Fog-Assisted Cyber-Physical System in the 5G Ready Heterogeneous Network
Defense Against Spectrum Sensing Data Falsification Attacker in Cognitive Radio Networks
Heuristic Algorithms for Underlay Spectrum Sharing in Cognitive Radio Networks
Joint Resource Allocation Algorithms for Full-Duplex Wireless Cellular System
Performance Analysis of Four Dimensional Turbo Code (4D-TC) Using Moment Based Simplified Augmented State Diagram (MSASD) Approach: Extension to LTE System
Group-Based Predictive Handoff for SIP Sessions in Vehicular M2M Network Mobility Management
An Attribute-Role Based Access Control Mechanism for Multi-tenancy Cloud Environment
Cross-Modality Breast Image Translation with Improved Resolution Using Generative Adversarial Networks
BER Analysis for BPSK Based SIM-FSO Communication System Over Strong Atmospheric Turbulence with Spatial Diversity and Pointing Errors
Intelligent Ad-Hoc-On Demand Multipath Distance Vector for Wormhole Attack in Clustered WSN
A Metaheuristic Handover Model Using Network Augmentation and Game Theory for Seamless Connectivity in Heterogeneous Networks
A Preference-Based Protocol for Trust and Head Selection for Cluster-Based MANET
Bursty-Contention Distribution for Energy Efficiency in Large Scale IEEE 802.15.4 Wireless Sensor Networks
Performance Analysis of Prefix Delegation-Based Route Optimization Schemes: Effects of Increasing the Number of Nodes
Motion Sequence-Based Human Abnormality Detection Scheme for Smart Spaces
Efficient Crest Factor Reduction Techniques for 5G NR: A Review and a Case Study
Editorial: Special Issue on "Advances in Mobile IPv6 and Network-Based Localized Mobility Management"
Quality Measurement of Push Services for Smart Devices
An IoT Based Secure Object Tracking System
Correction to: A Novel Protein Sequence Alignment‑Based Patch Similarity Estimation for Two‑Level Data Aggregation in WMSNs
Blockchain-Enabled Deep Reinforcement Learning Approach for Performance Optimization on the Internet of Things
Improved Authentication of Binding Update Protocol in Mobile IPv6 Networks
A Dictionary-Matrix Separation and Viterbi Decoding for Miller Code in RFID Tag Collision
An Improved Remote User Authentication Scheme Using Elliptic Curve Cryptography
Phase Noise Effects and Mitigation in OFDM Systems over Rayleigh Fading Channels
ECC-Based Authentication Scheme for Cloud-Based Robots
Energy Efficient Lighting System for Indoor Parking with Ubiquitous Communication
Decoupled Active/Passive Base Stations for Second Generation Cellular Networks
Dynamic Estimators for Islanding Detection in IEEE 9-Bus Wireless System
Network Energy Optimization of IOTs in Wireless Sensor Networks Using Capsule Neural Network Learning Model
Design of Nested Circular Ring-Shaped Ultra-Wideband Antenna Loaded with SRR and Defected Ground Plane