Robust Perceptual Data Sensing Based on Majorization-Minimized Low-Rank Semidefinite Relaxation for Visual IoT
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Internet of Things Journal"
DOI: 10.1109/jiot.2024.3399012
Abstract: For the Visual Internet of Things (VIoT), terminal devices need to preliminarily screen and tag data for enabling efficient indexing and allocation of sensing data to dedicated edge nodes or cloud data centers for further… read more here.
Keywords: rank semidefinite; semidefinite relaxation; relaxation; perceptual data ... See more keywords
Signal Reconstruction With Semidefinite Relaxation Optimization in Uplink Massive MIMO Systems
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DOI: 10.1109/lcomm.2020.3025633
Abstract: In this letter, we consider a single group massive MIMO (Multi-Input Multi-Output) system, which consists of one receiver deployed with large number of antennas and multiple users with each having single antenna. In the uplink… read more here.
Keywords: reconstruction; optimization; semidefinite relaxation; signal reconstruction ... See more keywords
Suppressing Range Ambiguity by Pattern Synthesis for SAR via Semidefinite Relaxation
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2020.3041826
Abstract: Range ambiguities severely degrade the performance of the synthetic aperture radar (SAR) system. To make an improvement without increasing the system complexity, antenna pattern synthesis is a feasible method. To this end, a novel algorithm… read more here.
Keywords: pattern synthesis; range; semidefinite relaxation; sar ... See more keywords
Semidefinite Relaxation for Source Localization by TOA in Unsynchronized Networks
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2022.3151006
Abstract: This letter addresses the time-of-arrival based localization problem when the source and sensors are not synchronized, whereby an unknown transmission time is introduced. A non-convex weighted least squares (WLS) minimization problem is first formulated to… read more here.
Keywords: semidefinite relaxation; problem; localization; source ... See more keywords
Iterative Semidefinite Relaxation for Geolocation of Uncooperative Radars Using Doppler Frequency Measurements
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Aerospace and Electronic Systems"
DOI: 10.1109/taes.2020.3046081
Abstract: In this article, we propose a novel method utilizing iterative semidefinite relaxation for geolocation of stationary uncooperative radars. In our scenario, the geolocation is to be performed in a receiver located on a moving platform.… read more here.
Keywords: iterative semidefinite; semidefinite relaxation; frequency; method ... See more keywords
Semidefinite Relaxation for Moving Target Localization in Asynchronous MIMO Systems
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2023.3326492
Abstract: Considering an asynchronous multiple input multiple output (MIMO) system, we propose to obtain the position and velocity of a moving target by applying differential time delay (DTD) and differential frequency shift (DFS) measurements. The asynchronous… read more here.
Keywords: moving target; semidefinite relaxation; asynchronous mimo; target ... See more keywords
Semidefinite Relaxation-Based PAPR-Aware Precoding for Massive MIMO-OFDM Systems
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2018.2874819
Abstract: A massive multiple-input multiple-output (MIMO) requires a large number of antennas and the same amount of power amplifiers (PAs), one per antenna. As opposed to 4G base stations, which can afford highly linear PAs, next-generation… read more here.
Keywords: semidefinite relaxation; massive mimo; aware precoding; papr aware ... See more keywords
Accurate Semidefinite Relaxation Method for Elliptic Localization With Unknown Transmitter Position
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Wireless Communications"
DOI: 10.1109/twc.2020.3044217
Abstract: Elliptic localization where a transmitter actively sending out a signal to locate an object from its echo appears in many practical systems including multiple-input-multiple-output (MIMO) radars and wireless communications. In this article, the elliptic localization… read more here.
Keywords: transmitter; transmitter position; semidefinite relaxation; method ... See more keywords