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The use of virtual and augmented reality devices is increasing, but these sensor-rich devices pose risks to privacy. The ability to track a user's motion and infer the identity or characteristics of the user poses a privacy risk that has…

Cryptography and Security · Computer Science 2024-07-29 Vivek Nair , Mark Roman Miller , Rui Wang , Brandon Huang , Christian Rack , Marc Erich Latoschik , James F. O'Brien

We develop a mixture procedure for multi-sensor systems to monitor data streams for a change-point that causes a gradual degradation to a subset of the streams. Observations are assumed to be initially normal random variables with known…

Machine Learning · Statistics 2016-02-19 Yang Cao , Yao Xie , Nagi Gebraeel

Secondary access to the licensed spectrum is viable only if interference is avoided at the primary system. In this regard, different paradigms have been conceptualized in the existing literature. Of these, Interweave Systems (ISs) that…

Information Theory · Computer Science 2016-11-17 Ankit Kaushik , Shree Krishna Sharma , Symeon Chatzinotas , Björn Ottersten , Friedrich K. Jondral

This paper considers a cyber-physical system under an active eavesdropping attack. A remote legitimate user estimates the state of a linear plant from the state information received from a sensor. Transmissions from the sensor occur via an…

Systems and Control · Electrical Eng. & Systems 2023-08-21 Matthew Crimson , Justin M. Kennedy , Daniel E. Quevedo

Interactions between road users are both highly non-linear and profoundly complex, and there is no reason to expect that interactions between autonomous vehicles will be any different. Given the recent rapid development of autonomous…

Systems and Control · Electrical Eng. & Systems 2020-05-12 Matthew Le Maitre , Amanda Prorok

Due to accelerating urbanization, the importance of solving the signal control problem increases. This paper analyzes various existing methods and suggests options for increasing the number of agents to reduce the average travel time.…

Artificial Intelligence · Computer Science 2024-06-21 Maksim Tislenko , Dmitrii Kisilev

Non-ideal position estimation results in degraded performance of synchronous motor drive systems due to reduction of the average capability of the drive as well as torque harmonics of different orders. The signature and extent of the…

Systems and Control · Electrical Eng. & Systems 2023-10-11 Prerit Pramod

In this paper, we study cooperative cognitive radio networks consisting of a primary user and multiple secondary users. Secondary users transmit only when primary user is sensed as silent and may interfere with primary transmission due to…

Information Theory · Computer Science 2016-08-25 Kedar Kulkarni , Adrish Banerjee

Developing an efficient spectrum access policy enables cognitive radios to dramatically increase spectrum utilization while ensuring predetermined quality of service levels for primary users. In this paper, modeling, performance analysis,…

Information Theory · Computer Science 2014-09-04 Hossein Shokri-Ghadikolaei , Carlo Fischione

We consider a secondary user (SU) with energy harvesting capability. We design access schemes for the SU which incorporate random spectrum sensing and random access, and which make use of the primary automatic repeat request (ARQ) feedback.…

Information Theory · Computer Science 2014-04-29 Ahmed El Shafie

In this paper, we investigate the impact of hardware impairments in antenna arrays on the beamforming performance of multi-input multi-output (MIMO) communication systems. We consider two types of imperfections: per-element gain mismatches…

Signal Processing · Electrical Eng. & Systems 2025-11-10 Xuan Chen , Matthieu Crussière , Luc Le Magoarou

In the multisensor sequential change detection problem, a disruption occurs in an environment monitored by multiple sensors. This disruption induces a change in the observations of an unknown subset of sensors. In the Byzantine version of…

Statistics Theory · Mathematics 2017-08-25 Georgios Fellouris , Erhan Bayraktar , Lifeng Lai

We consider a secondary user with energy harvesting capability. We design access schemes for the secondary user which incorporate random spectrum sensing and random access, and which make use of the primary automatic repeat request (ARQ)…

Networking and Internet Architecture · Computer Science 2012-08-29 Ahmed El Shafie , Ahmed Sultan

With over-deployed network infrastructures, network densification is shown to hinder the improvement of user experience and system performance. In this paper, we adopt multi-antenna techniques to overcome the bottleneck and investigate the…

Information Theory · Computer Science 2017-07-20 Junyu Liu , Min Sheng , Jiandong Li

Feedback dynamic routing is a commonly used control strategy in transportation systems. This class of control strategies relies on real-time information about the traffic state in each link. However, such information may not always be…

Systems and Control · Electrical Eng. & Systems 2020-03-16 Qian Xie , Li Jin

Dynamic spectrum access in cognitive radio networks can greatly improve the spectrum utilization efficiency. Nevertheless, interference may be introduced to the Primary User (PU) when the Secondary Users (SUs) dynamically utilize the PU's…

Networking and Internet Architecture · Computer Science 2011-11-22 Chunxiao Jiang , Yan Chen , K. J. Ray Liu , Yong Ren

We investigate beamforming and artificial noise generation at the secondary transmitters to establish secure transmission in large scale spectrum sharing networks,where multiple non-colluding eavesdroppers attempt to intercept the secondary…

Information Theory · Computer Science 2016-03-14 Yansha Deng , Lifeng Wang , Syed Ali Raza Zaidi , Jinhong Yuan , Maged Elkashlan

The robustness of system throughput with scheduling is a critical issue. In this paper, we analyze the sensitivity of multi-user scheduling performance to channel misreporting in systems with massive antennas. The main result is that for…

Information Theory · Computer Science 2018-04-03 Zhanzhan Zhang , Yin Sun , Ashutosh Sabharwal , Zhiyong Chen

We consider a set of primary channels that operate in an unslotted fashion, switching activity at random times. A secondary user senses the primary channels searching for transmission opportunities. If a channel is sensed to be free, the…

Networking and Internet Architecture · Computer Science 2010-07-08 Omar Mehanna , Ahmed Sultan

High-latency anonymous communication systems prevent passive eavesdroppers from inferring communicating partners with certainty. However, disclosure attacks allow an adversary to recover users' behavioral profiles when communications are…

Cryptography and Security · Computer Science 2019-10-23 Simon Oya , Carmela Troncoso , Fernando Pérez-González