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High-Precision Ranging Matters: Uncovering the Potential of Ultra-Wideband Radios in Real-World Applications
High-Precision Ranging Matters: Uncovering the Potential of Ultra-Wideband Radios in Real-...
High-Precision Ranging Matters: Uncovering the Potential of Ultra-Wideband Radios in Real-World Applications

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자료유형  
 학위논문 서양
최종처리일시  
20260202105556
ISBN  
9798263399061
DDC  
004.62
저자명  
Cao, Yifeng.
서명/저자  
High-Precision Ranging Matters: Uncovering the Potential of Ultra-Wideband Radios in Real-World Applications
발행사항  
[Sl] : Georgia Institute of Technology, 2024
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2024
형태사항  
184 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-06, Section: B.
주기사항  
Advisor: Dhekne, Ashutosh.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2024.
초록/해제  
요약Ultra-wideband (UWB) radio is an upcoming wireless technology characterized by an extremely large bandwidth (≥ 500MHz). Such a wide band enables UWB to perform ranging in decimeter-level accuracy, making it a superior option for accurate localization. The recent incorporation of UWB in mobile devices like iPhones, Samsung smartphones and AirTags has demonstrated its feasibility in medium-range positioning. However, we believe the potential of UWB is still under-explored even in today's market for three reasons. First, accurate ranging measurement is an important modality in extensive sensing applications beyond localization, including physical distancing, human action recognition, autonomous parking, etc. Merely using UWB for object positioning ignores the vast possibilities to apply UWB in the general mobile computing field. Second, most current use cases of UWB focus on the baseband. The potential of UWB's carrier wave, and particularly its phase, has not been exploited. Third, as a radio technology working on an independent band, UWB does not interfere with other widely used wireless technologies, including Wi-Fi, Bluetooth, etc.The objective of this dissertation is to explore and extend the possibilities of UWB, enabling various applications. Our exploration demonstrates that introducing UWB can both achieve better performance in solving a problem which is traditionally tackled by other technologies, and open the gates to new applications. We proposed UWB's applications in four areas in this dissertation. In the first work 6Fit-a-Part, we use UWB to achieve accurate and real-time physical distancing using a custom wearable device. More specifically, we design a one-to-all ranging protocol that is able to accurately estimate the distance to neighboring devices and warn the user if the distance falls below a certain established threshold within a short time. This work still employs UWB's fundamental ranging capabilities, but targets a more challenging dynamic, multi-user ranging scenario. Our second work ITrackU goes one step further to answer the question whether UWB can be used to perform high-precision tracking. In this work, we present a system that enables millimeter-level tracking of a pen-like instrument across a large surface by fusing UWB with inertial sensors (IMU). The core idea that permits mm-level tracking is to use UWB carrier phase captured from multiple vantage points. Fusing the phase measurements with IMU offers the ability to perform continuous tracking despite wireless occlusions. Continuing on the UWB-IMU fusion approach, the third work ViSig extends the use of UWB to human action recognition with wearable devices. In this work, UWB primarily provides inter-appendage distance measurements while IMU captures the angles (or orientation) of different body segments. The results show that by deploying only a small number of sensors (6) on the body, we can achieve 90% accuracy in interpreting various body signal applications such as cricket umpire signals, baseball umpire signals, crane signals, flag semaphore, and football official signals. Finally, in the fourth work, we show UWB can even be applied in the online authentication field, where the location of a token close to the login device is an important consideration. We present a UWB-based two-factor authentication (2FA) platform, called UWB-Auth, designed as carriable or wearable devices, which eliminates various social engineering attacks including phishing attack, 2FA-fatigue attack, co-located attack, etc, while maintaining short authentication. The evaluation with our custom prototype shows UWB-Auth completes the whole authentication process in 4 seconds, and completely rejects malicious requests when the adversary is 20cm and 10° outside a small valid physical area near the login device. Overall, we have significantly expanded the application space for UWB beyond the traditional indoor localization and lost-and-found use cases. In doing so, we have made algorithmic and architectural innovations which are expected to become cornerstones in future research around UWB.
일반주제명  
Protocol
일반주제명  
Systems design
일반주제명  
Electrical engineering
키워드  
Ultra-wideband
키워드  
Radio technology
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-06B.
전자적 위치 및 접속  
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MARC

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■24510▼aHigh-Precision  Ranging  Matters:  Uncovering  the  Potential  of  Ultra-Wideband  Radios  in  Real-World  Applications
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■500    ▼aAdvisor:  Dhekne,  Ashutosh.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2024.
■520    ▼aUltra-wideband  (UWB)  radio  is  an  upcoming  wireless  technology  characterized  by  an  extremely  large  bandwidth  (≥  500MHz).  Such  a  wide  band  enables  UWB  to  perform  ranging  in  decimeter-level  accuracy,  making  it  a  superior  option  for  accurate  localization.  The  recent  incorporation  of  UWB  in  mobile  devices  like  iPhones,  Samsung  smartphones  and  AirTags  has  demonstrated  its  feasibility  in  medium-range  positioning.  However,  we  believe  the  potential  of  UWB  is  still  under-explored  even  in  today's  market  for  three  reasons.  First,  accurate  ranging  measurement  is  an  important  modality  in  extensive  sensing  applications  beyond  localization,  including  physical  distancing,  human  action  recognition,  autonomous  parking,  etc.  Merely  using  UWB  for  object  positioning  ignores  the  vast  possibilities  to  apply  UWB  in  the  general  mobile  computing  field.  Second,  most  current  use  cases  of  UWB  focus  on  the  baseband.  The  potential  of  UWB's  carrier  wave,  and  particularly  its  phase,  has  not  been  exploited.  Third,  as  a  radio  technology  working  on  an  independent  band,  UWB  does  not  interfere  with  other  widely  used  wireless  technologies,  including  Wi-Fi,  Bluetooth,  etc.The  objective  of  this  dissertation  is  to  explore  and  extend  the  possibilities  of  UWB,  enabling  various  applications.  Our  exploration  demonstrates  that  introducing  UWB  can  both  achieve  better  performance  in  solving  a  problem  which  is  traditionally  tackled  by  other  technologies,  and  open  the  gates  to  new  applications.  We  proposed  UWB's  applications  in  four  areas  in  this  dissertation.  In  the  first  work  6Fit-a-Part,  we  use  UWB  to  achieve  accurate  and  real-time  physical  distancing  using  a  custom  wearable  device.  More  specifically,  we  design  a  one-to-all  ranging  protocol  that  is  able  to  accurately  estimate  the  distance  to  neighboring  devices  and  warn  the  user  if  the  distance  falls  below  a  certain  established  threshold  within  a  short  time.  This  work  still  employs  UWB's  fundamental  ranging  capabilities,  but  targets  a  more  challenging  dynamic,  multi-user  ranging  scenario.  Our  second  work  ITrackU  goes  one  step  further  to  answer  the  question  whether  UWB  can  be  used  to  perform  high-precision  tracking.  In  this  work,  we  present  a  system  that  enables  millimeter-level  tracking  of  a  pen-like  instrument  across  a  large  surface  by  fusing  UWB  with  inertial  sensors  (IMU).  The  core  idea  that  permits  mm-level  tracking  is  to  use  UWB  carrier  phase  captured  from  multiple  vantage  points.  Fusing  the  phase  measurements  with  IMU  offers  the  ability  to  perform  continuous  tracking  despite  wireless  occlusions.  Continuing  on  the  UWB-IMU  fusion  approach,  the  third  work  ViSig  extends  the  use  of  UWB  to  human  action  recognition  with  wearable  devices.  In  this  work,  UWB  primarily  provides  inter-appendage  distance  measurements  while  IMU  captures  the  angles  (or  orientation)  of  different  body  segments.  The  results  show  that  by  deploying  only  a  small  number  of  sensors  (6)  on  the  body,  we  can  achieve  90%  accuracy  in  interpreting  various  body  signal  applications  such  as  cricket  umpire  signals,  baseball  umpire  signals,  crane  signals,  flag  semaphore,  and  football  official  signals.  Finally,  in  the  fourth  work,  we  show  UWB  can  even  be  applied  in  the  online  authentication  field,  where  the  location  of  a  token  close  to  the  login  device  is  an  important  consideration.  We  present  a  UWB-based  two-factor  authentication  (2FA)  platform,  called  UWB-Auth,  designed  as  carriable  or  wearable  devices,  which  eliminates  various  social  engineering  attacks  including  phishing  attack,  2FA-fatigue  attack,  co-located  attack,  etc,  while  maintaining  short  authentication.  The  evaluation  with  our  custom  prototype  shows  UWB-Auth  completes  the  whole  authentication  process  in  4  seconds,  and  completely  rejects  malicious  requests  when  the  adversary  is  20cm  and  10°  outside  a  small  valid  physical  area  near  the  login  device.  Overall,  we  have  significantly  expanded  the  application  space  for  UWB  beyond  the  traditional  indoor  localization  and  lost-and-found  use  cases.  In  doing  so,  we  have  made  algorithmic  and  architectural  innovations  which  are  expected  to  become  cornerstones  in  future  research  around  UWB.
■590    ▼aSchool  code:  0078.
■650  4▼aProtocol
■650  4▼aSystems  design
■650  4▼aElectrical  engineering
■653    ▼aUltra-wideband
■653    ▼aRadio  technology
■690    ▼a0544
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-06B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2024
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17360622▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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