Newtonized orthogonal matching pursuit: Frequency estimation over the continuum

B Mamandipoor, D Ramasamy… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
We propose a fast sequential algorithm for the fundamental problem of estimating
frequencies and amplitudes of a noisy mixture of sinusoids. The algorithm is a natural …

Compressive adaptation of large steerable arrays

D Ramasamy, S Venkateswaran… - … Information Theory and …, 2012 - ieeexplore.ieee.org
We consider the problem of adapting very large antenna arrays (eg, with 1000 elements or
more) for tasks such as beamforming and nulling, motivated by emerging applications at …

Distributed massive MIMO: Algorithms, architectures and concept systems

U Madhow, DR Brown, S Dasgupta… - 2014 information …, 2014 - ieeexplore.ieee.org
Making MIMO truly “massive” involves liberating it from the shackles of form factor
constraints, by allowing arbitrarily large groups of neighboring nodes to opportunistically …

Millimeter wave MIMO-based depth maps for wireless virtual and augmented reality

A Taha, Q Qu, S Alex, P Wang, WL Abbott… - IEEE …, 2021 - ieeexplore.ieee.org
Augmented and virtual reality systems (AR/VR) are rapidly becoming key components of the
wireless landscape. For immersive AR/VR experience, these devices should be able to …

Software defined radio implementation of carrier and timing synchronization for distributed arrays

H Yan, S Hanna, K Balke, R Gupta… - 2019 IEEE Aerospace …, 2019 - ieeexplore.ieee.org
The communication range of wireless networks can be greatly improved by using distributed
beamforming from a set of independent radio nodes. One of the key challenges in …

Joint positioning-communications system design and experimental demonstration

A Herschfelt, H Yu, S Wu, S Srinivas… - 2019 IEEE/AIAA 38th …, 2019 - ieeexplore.ieee.org
Modern radio systems must adapt to limited spectral access by reducing spectrum demand
and increasing operational efficiency. We design and implement a hybrid communications …

Precise timestamp-free network synchronization

DR Brown, AG Klein - 2013 47th Annual Conference on …, 2013 - ieeexplore.ieee.org
This paper describes an approach to master/slave network synchronization based on
bidirectional message exchanges without the use of timestamps. Rather than the usual …

Experimental demonstration of retrodirective beamforming from a fully wireless distributed array

B Peiffer, R Mudumbai, S Goguri… - MILCOM 2016-2016 …, 2016 - ieeexplore.ieee.org
We report on recent results from our ongoing work on demonstrating retrodirective
transmission from distributed arrays. Specifically, we describe a successful experimental …

[图书][B] Simultaneous positioning and communications: Hybrid radio architecture, estimation techniques, and experimental validation

A Herschfelt - 2019 - search.proquest.com
Limited spectral access motivates technologies that adapt to diminishing resources and
increasingly cluttered environments. A joint positioning-communications system is designed …

An introduction to spectral convergence: Challenges and paths to solutions

A Herschfelt, AR Chiriyath, S Srinivas… - 2021 1st IEEE …, 2021 - ieeexplore.ieee.org
With rapid advances in flexible, software-defined computational architectures and radio front-
end technologies, we have an opportunity to improve the efficiency of spectral use, reinforce …