Spectrum sensing - PowerPoint PPT Presentation


Understanding Remote Sensing Sensor Resolutions & Colour Composite

Explore the art and science of remote sensing, detailing sensor types, resolution categories, and color composite techniques. Learn about the stages involved in remote sensing, sensor variations, and band designations for satellites like Landsat 8. Discover the significance of pixel, high-resolution

3 views • 13 slides


Latest Consensus on UWB Sensing for 802.15.4ab

Co-authors from various companies present the latest agreement on ultra-wideband (UWB) sensing topics for the IEEE 802.15.4ab standard. The consensus includes definitions for sensing pulse shape, packet formats for bi/multi-static sensing, and support for specific sequences and patterns in UWB sensi

1 views • 27 slides



Spectrum Sensing-Based Deferral Enhancement for Wireless Networks

Simulation evaluation and enhancement proposal for Spectrum Sensing-Based Deferral (SSBD) channel access to improve latency and performance in hidden node scenarios. The proposed solution includes interference mitigation, coexistence improvements, backward compatibility, reduced air-time, improved l

0 views • 11 slides


Spectrum Sensing for Enhanced Channel Access in Wireless Networks

This document presents a proposal for Spectrum Sensing Based Deferral (SSBD) to improve channel access in wireless networks. SSBD incorporates spectrum sensing with transmission deferral in a time-bound manner to enhance performance, reliability, and latency control. The proposed solution safeguards

1 views • 11 slides


Understanding Spread Spectrum Techniques in Data Transmission

Explore the concepts of bandwidth utilization, spreading, and transmission modes in data transmission and digital communication. Learn about spread spectrum techniques such as frequency hopping and direct sequence spread spectrum, which enable efficient sharing of wireless communication channels. Di

1 views • 28 slides


Understanding Spread Spectrum Communication Systems

Spread spectrum techniques involve spreading a signal over a wide bandwidth for various reasons, such as secure communication, resistance to interference, noise, and jamming. This summary introduces Direct Sequence Spread Spectrum (DSSS), Frequency Hopping Spread Spectrum (FHSS), Time Hopping, and h

0 views • 25 slides


IEEE 802.11-21/1321r1 WLAN Sensing Procedure Proposal

This document by Solomon Trainin from Qualcomm presents a proposal on aligning the SFD for the WLAN sensing procedure. It aims to resolve contradictions, optimize behavior, and introduce a structured WLAN sensing procedure. The content outlines phases, terminology, setup, measurement, and reporting

0 views • 8 slides


IEEE 802.11-21/2011r0 Sensing NDP Announcement Overview

This document presents an overview of the IEEE 802.11-21/2011r0 Sensing NDP Announcement for utilizing NDP in sensing applications. It discusses the motivation behind NDP sensing, outlines the NDP Announcement frames, and explains possible sensing frame exchange sequences. The Ranging NDP Announceme

0 views • 8 slides


Enhancing Privacy in Crowdsourced Spectrum Allocation

This research focuses on protecting privacy in crowdsourced spectrum allocation, addressing the security challenges faced due to the presence of multiple entities and the sensitive information collected. By proposing potential ideas like Fully Homomorphic Encryption (FHE) and Secure Multi-Party Comp

0 views • 26 slides


IEEE 802.11-19/1769: CSI-based Wi-Fi Sensing Results & Challenges

This document from Oct. 2019 explores IEEE 802.11-19/1769 CSI-based Wi-Fi sensing, focusing on results and standardization challenges. It delves into the concept of Wi-Fi sensing, its applications in security, automation, healthcare, and more, as well as the importance of CSI parameters such as reso

0 views • 10 slides


Wi-Fi Sensing in IoT: Advantages, Use Cases, and Challenges

Wi-Fi sensing utilizes Wi-Fi devices/network to detect presence, range, angle, and velocity of passive/non-transceiver objects. This document discusses the definition, advantages, use cases like smart home applications, and challenges of Wi-Fi sensing compared to other sensing technologies. It also

6 views • 15 slides


Exploring Wi-Fi Sensing for Motion Detection and Beyond

The document discusses the utilization of Wi-Fi signals for sensing various features in a given environment, such as motion, presence, gesture, and more, without assuming the subject carries a Wi-Fi device. It covers applications, technical principles, and a three-phase algorithm for motion detectio

0 views • 24 slides


Wireless Sensing Privacy Discussions in May 2023 Document

May 2023 document (.IEEE 802..11-23-0782-00-00bf) discusses privacy issues related to wireless sensing, including unauthorized access to sensing reports, tracking of sensing devices, and potential eavesdropping on sensing signals. It proposes solutions to protect sensitive information and addresses

4 views • 12 slides


Comparison of Trigger-based vs. Non-Trigger-based Sensing Measurement in IEEE 802.11

The document discusses the differences between Trigger-based (TB) and Non-Trigger-based (Non-TB) sensing measurement instances in IEEE 802.11 standards, focusing on who initiates the sensing measurement. TB sensing is initiated by the AP, while Non-TB sensing is initiated by a non-AP STA, enabling o

6 views • 13 slides


IEEE P802.15 WPAN Sensing Device Submission

This submission to the IEEE P802.15 Working Group focuses on the development of a sensing device for Wireless Personal Area Networks (WPANs). The document discusses the integration of Ultra-Wideband (UWB) technology for sensing applications, including presence detection and environment mapping. Key

0 views • 16 slides


Exploring Wi-Fi Sensing: Feasibility and Standardization Gaps

Delve into the technical aspects of Wi-Fi sensing, discussing its definition, feasibility, and standardization gaps according to the IEEE 802.11 standard. The presentation highlights the ability of Wi-Fi systems to detect environmental changes and explores scientific publications related to Wi-Fi se

0 views • 27 slides


Wireless LAN Sensing Use Cases in Home Environments

The document discusses use cases for Wireless LAN (WLAN) sensing in home environments, focusing on the connection between multiple access points and home appliances for enhanced performance. It outlines scenarios such as gesture-controlled home appliance operation, user identification for personaliz

0 views • 11 slides


Understanding White Spaces Databases: An Empirical Study

White spaces in the TV band offer opportunities for unlicensed usage, motivating research on white space detection methods like geolocation spectrum databases and spectrum sensing. This study explores errors in white spaces databases, discussing the challenges and implications for white space device

1 views • 30 slides


IEEE 802.11-21/0391r0: Minimizing Impact in WLAN Sensing Design

The document presents discussions on minimizing impact as a design goal within the IEEE 802.11-21/0391r0 context, emphasizing the efficiency related to the impact of sensing on network performance. It addresses the current status, constraints, design options, and thoughts regarding WLAN sensing with

1 views • 8 slides


Remote Sensing Methods for Identifying Degraded Forests in the Amazon

Using multisource remote sensing data, this study aims to identify and characterize forest degradation in the Amazonian landscape. Field work in Paragominas, Brazil, combined with optical and radar data analysis, helps in understanding carbon stocks and typology of degraded forests. The research foc

3 views • 7 slides


Understanding Hall Effect Sensors in Electronic Labs

Hall Effect sensors play a crucial role in detecting magnetic fields, enabling applications such as current sensing, rotational speed measurement in motors, and magnetic proximity sensing. They operate based on the Hall Effect phenomenon, where a magnetic field influences the flow of current in a se

2 views • 5 slides


ICAO Handbook on Radio Frequency Spectrum Requirements for Civil Aviation Workshops

This handbook provides insights into spectrum requirements for civil aviation workshops conducted in Egypt and Thailand in October 2016. It covers spectrum strategy, frequency management, spectrum overview for aviation, and frequency assignment planning to support the application of SARPs in Annex 1

0 views • 10 slides


Sparse Millimeter-Wave Imaging Using Compressed Sensing and Point Spread Function Calibration

A novel indoor millimeter-wave imaging system based on sparsity estimated compressed sensing and calibrated point spread function is introduced. The system utilizes a unique calibration procedure to process the point spread function acquired from measuring a suspended point scatterer. By estimating

2 views • 26 slides


Exploring Applications of Remote Sensing in Environmental Studies

Dr. Sanjib Pramanik, an Assistant Professor at Durga College, delves into the fascinating realm of remote sensing for environmental studies. Remote sensing allows data collection from a distance, utilizing methods like air photos and satellite imagery. The environment comprises components such as na

0 views • 35 slides


Unified Pan-Spectrum Fitting Formula for Suprathermal Particles

Unifying spectrum formulas for suprathermal particles, the proposed pan-spectrum formula provides a versatile fitting method encompassing classic double-power-law, band function, and kappa distribution. Motivated by the need for more accurate spectrum information, the formula introduces five paramet

0 views • 14 slides


Advances in Remote Sensing for Soil Moisture Validation and Calibration

Cutting-edge methods like Cosmic-Ray Neutron Sensing (CRNS) and mobile measurements are revolutionizing soil moisture validation and calibration. From satellite-based techniques to local approaches, researchers are enhancing the accuracy and reliability of soil moisture data for various applications

0 views • 15 slides


Market-Based Spectrum Allocation Strategies in SATRC Countries

Explore the implementation of market-based methods for spectrum allocation in SATRC countries. Learn about the requirements, benefits, and challenges associated with adopting market-based mechanisms, especially in the context of increasing demand for spectrum and technological advancements. Discover

0 views • 41 slides


Remote Sensing for Blue Whale Conservation: Enhancing Maritime Policy

Using remote sensing technology to monitor blue whale habitats can help address the conservation challenges posed by ship strikes. By predicting species distributions with greater precision, regulatory agencies can implement effective measures to reduce the risks faced by blue whales. Remote sensing

0 views • 18 slides


Efficient Context Sensing for Mobile Applications

Leveraging correlations between different user contexts, the ACEACE framework by Suman Nath explores energy-efficient continuous context sensing for mobile apps. By inferring expensive attributes from cheaper ones, the system optimizes sensing tasks based on human activities, significantly reducing

0 views • 23 slides


Satellite Products for Aviation Remote Sensing Needs in High Latitudes

Addressing the specific needs of aviation remote sensing in high latitudes, this content explores the importance of satellite products, variations in equipment requirements, data expectations, and the significance of cloud products for aviation safety. Feedback from aircraft operators emphasizes the

0 views • 8 slides


Next Generation Spectrum Management Initiative Overview

Rich Kennedy presented on the need to change spectrum management practices within IEEE 802, addressing the results of straw polls conducted and proposing further investigation into Multi-band White Space feasibility. The presentation also highlighted the interest in advocating for an AI-managed spec

0 views • 14 slides


Spectral and Radiometric Considerations for Government Remote Sensing Instruments

This presentation explores the important considerations in designing and calibrating government passive optical remote sensing instruments, focusing on spectral and radiometric aspects. Topics include spectral variation, design considerations, uniformity, reflectance calibration, and examples from i

0 views • 27 slides


Radiometric Calibration Methods for Remote Sensing Applications

Techniques for radiometric calibration in remote sensing include vicarious approaches utilizing invariant desert sites, in-situ methods characterizing surfaces and atmospheres, and SI-traceable measurements for intercomparisons between sensors. The repeatability of in-situ results and comparison wit

0 views • 20 slides


Remote Sensing Panel Discussion: Addressing Challenges in RFI Reporting, Regulations, and Protection of Operations

The Remote Sensing panel discussion highlights key issues such as the lack of RFI reporting to the ITU, importance of RFI reporting for regulatory enforcement, obstacles in protecting remote sensing operations, desired changes in Radio Regulations, and potential discussion points for the research an

0 views • 7 slides


Enhancing Robot Control in Neurosurgery through Force Sensing Integration

The project aims to improve the cooperative control of the Galen robot in neurosurgery by measuring and integrating tool-to-tissue forces. By sensing these forces, the system can enhance visual feedback, establish safety limits, evaluate surgical skills, and allow unbiased comparisons of techniques.

0 views • 12 slides


Enhancing Smartphone Location Sensing Efficiency

This study delves into optimizing energy consumption in smartphone location sensing mechanisms like GPS and Network Based Triangulation. Comparisons of battery drainage rates with and without GPS provide insights. Additionally, the energy efficiency of Network Based Triangulation as a less accurate

0 views • 41 slides


Cognitive Radio Network and Game Theory Exploration at University of Houston

Explore the application of cooperative game theory in cognitive radio networks, focusing on spectrum sensing, dynamic spectrum access, and coalitional games. Detailed overview of research conducted at the Department of Electrical and Computer Engineering, University of Houston. Learn about cognitive

0 views • 42 slides


IEEE 802 Spectrum Planning: Proactive Approach for Improved Spectrum Management

Exploring the need for proactive spectrum planning in IEEE 802 to better manage the complex process of meeting spectrum needs efficiently and effectively. Delving into the challenges of spectrum allocation, sharing, and optimization to ensure that standards have the RF spectrum necessary for their r

0 views • 9 slides


Understanding Spectrum Databases and PAWS Parameters

Explore the world of Spectrum Databases and PAWS parameters, which provide essential information about available spectrum, permissible power levels, regulatory domains, geolocation data, and more. Learn about typical deployments, data types, and spectrum scheduling to enhance your understanding of s

0 views • 16 slides


Constrained Adaptive Sensing and Benefits of Adaptivity

Constrained adaptive sensing involves estimating sparse signals with constraints, utilizing strategies like nonadaptive sensing and adaptive sensing. Benefits of adaptivity include reducing errors and improving estimation accuracy in signal processing. It explores the potential for improvement in re

0 views • 17 slides