Signal Reconstruction With Semidefinite Relaxation Optimization in Uplink Massive MIMO Systems
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Communications Letters"
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
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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-Based PAPR-Aware Precoding for Massive MIMO-OFDM Systems
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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
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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