Journal ArticleDOI
A beacon navigation method for autonomous vehicles
TLDR
An experimental position-measuring system has been built and tested, and it demonstrated the ability of this technique to function as a key element in a navigation system for autonomous vehicles.Citations
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Journal ArticleDOI
Wireless Communications and Applications Above 100 GHz: Opportunities and Challenges for 6G and Beyond
Theodore S. Rappaport,Yunchou Xing,Ojas Kanhere,Shihao Ju,Arjuna Madanayake,Soumyajit Mandal,Ahmed Alkhateeb,Georgios C. Trichopoulos +7 more
TL;DR: This paper offers the first in-depth look at the vast applications of THz wireless products and applications and provides approaches for how to reduce power and increase performance across several problem domains, giving early evidence that THz techniques are compelling and available for future wireless communications.
Journal ArticleDOI
Position location using wireless communications on highways of the future
TL;DR: The fundamental technical challenges and business motivations behind wireless position location systems are described, and promising techniques for solving the practical position location problem are treated.
Proceedings ArticleDOI
A directionality based location discovery scheme for wireless sensor networks
Asis Nasipuri,Kai Li +1 more
TL;DR: A new method by which a sensor node can determine its location by listening to wireless transmissions from three or more fixed beacon nodes is presented, based on an angle-of-arrival estimation technique that does not increase the complexity or cost of construction of the sensor nodes.
Patent
Method and system for multi-mode coverage for an autonomous robot
Joseph L. Jones,Philip R. Mass +1 more
TL;DR: In this article, a behavior-based control system for a mobile robot is provided to effectively cover a given area by operating in a plurality of modes, including an obstacle following mode and a random bounce mode.
Proceedings ArticleDOI
TPS: a time-based positioning scheme for outdoor wireless sensor networks
TL;DR: A novel time-based positioning scheme for efficient location discovery in outdoor sensor networks that relies on TDoA (time-difference-of-arrival) of RF signals measured locally at a sensor to detect range differences from the sensor to three base stations.
References
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Journal ArticleDOI
Comments on "Teletraffic model and performance analysis for cellular mobile radio telephone systems with prioritized and nonprioritized handoff procedures"
TL;DR: A traffic model and analysis for cellular mobile radio telephone systems with handoff, which shows, for example, blocking probability, forced termination probability, and fraction of new calls not completed, as functions of pertinent system parameters.
Journal ArticleDOI
Sonar-based real-world mapping and navigation
TL;DR: In this article, a sonar-based mapping and navigation system for an autonomous mobile robot operating in unknown and unstructured environments is described, where range measurements from multiple points of view are integrated into a sensor level sonar map, using a robust method that combines the sensor information in such a way as to cope with uncertainties and errors in the data.
Book
Sonar-based real-world mapping and navigation
TL;DR: A sonar-based mapping and navigation system developed for an autonomous mobile robot operating in unknown and unstructured environments is described, which uses sonar range data to build a multileveled description of the robot's surroundings.
Journal ArticleDOI
Cochannel Interference Considerations in Frequency Reuse Small-Coverage-Area Radio Systems
TL;DR: Results suggest that, even if the signal strength decreases as slowly as the inverse cube of the distance and the standard deviation of the large scale signal variation is as large as 10 dB, good service probabilities can be provided in small-coverage-area radio systems using 30-40 channel sets.
Journal ArticleDOI
Elements of cellular mobile radio systems
TL;DR: In this article, the authors use the co-channel interference reduction factor as a design criterion and predict the signal-to-interference (S/I) ratios in different system configurations.