• Publications
  • Influence
Using directional antennas for medium access control in ad hoc networks
TLDR
We propose a directional MAC protocol that exploits the characteristics of directional antennas and uses multi-hop RTS to establish links between distant nodes. Expand
  • 799
  • 108
  • PDF
No need to war-drive: unsupervised indoor localization
TLDR
We propose UnLoc, an unsupervised indoor localization scheme that bypasses the need for war-driving. Expand
  • 752
  • 77
  • PDF
Deafness: a MAC problem in ad hoc networks when using directional antennas
TLDR
This paper quantifies the impact of deafness on directional medium access control, and proposes a tone-based mechanism as one way of addressing deafness. Expand
  • 377
  • 45
  • PDF
SurroundSense: mobile phone localization via ambience fingerprinting
TLDR
A growing number of mobile computing applications are centered around the user's location. Expand
  • 788
  • 39
  • PDF
You are facing the Mona Lisa: spot localization using PHY layer information
TLDR
This paper explores the viability of precise indoor localization using physical layer information in WiFi systems using off-the-shelf Intel 5300 cards. Expand
  • 379
  • 26
EnLoc: Energy-Efficient Localization for Mobile Phones
TLDR
A growing number of mobile phone applications utilize physical location to express the context of information. Expand
  • 260
  • 25
  • PDF
Tapprints: your finger taps have fingerprints
TLDR
We present TapPrints, a framework for inferring the location of taps on mobile device touch-screens using motion sensor data combined with machine learning analysis. Expand
  • 284
  • 21
  • PDF
No time to countdown: migrating backoff to the frequency domain
TLDR
This paper proposes to break away from convention and recreate the backing off operation in the frequency domain, using OFDM subcarriers as integer numbers. Expand
  • 143
  • 21
  • PDF
Micro-Blog: sharing and querying content through mobile phones and social participation
TLDR
Mobile phones can be envisioned as people-centric sensors capable of aggregating participatory as well as sensory inputs from local surroundings. Expand
  • 468
  • 20
  • PDF
OverLay: Practical Mobile Augmented Reality
The idea of augmented reality - the ability to look at a physical object through a camera and view annotations about the object - is certainly not new. Yet, this apparently feasible vision has notExpand
  • 102
  • 20
  • PDF