no code implementations • 18 Mar 2024 • Yang Yang, Mingzhe Chen, Yufei Blankenship, Jemin Lee, Zabih Ghassemlooy, Julian Cheng, Shiwen Mao
The purpose of this paper is to provide a comprehensive overview of existing works and new trends in the field of positioning techniques from both the academic and industrial perspectives.
no code implementations • 25 Jan 2024 • Sinwoong Yun, Dongsun Kim, Chanwon Park, Jemin Lee
In this paper, we propose the sensing and computing decision (SCD) algorithms for data freshness in the EC-enabled wireless sensor networks.
no code implementations • 22 Mar 2023 • Jemin Lee, Yongin Kwon, Jeman Park, Misun Yu, Sihyeong Park, Hwanjun Song
To overcome these challenges, we propose a new post-training quantization method, which is the first to quantize efficient hybrid ViTs (MobileViTv1, MobileViTv2, Mobile-Former, EfficientFormerV1, EfficientFormerV2) with a significant margin (an average improvement of 8. 32\% for 8-bit and 26. 02\% for 6-bit) compared to existing PTQ methods (EasyQuant, FQ-ViT, and PTQ4ViT).
1 code implementation • 4 Jul 2022 • Yongin Kwon, Jemin Lee, TaeHo Kim, Sangtae Ha
We propose CPrune, a compiler-informed model pruning for efficient target-aware DNN execution to support an application with a required target accuracy.
no code implementations • 10 Feb 2022 • Jemin Lee, Misun Yu, Yongin Kwon, TaeHo Kim
To adopt convolutional neural networks (CNN) for a range of resource-constrained targets, it is necessary to compress the CNN models by performing quantization, whereby precision representation is converted to a lower bit representation.
no code implementations • 1 Nov 2021 • Hewon Cho, Ying Cui, Jemin Lee
Edge computing technology has great potential to improve various computation-intensive applications in vehicular networks by providing sufficient computation resources for vehicles.
no code implementations • 29 Sep 2021 • Dongsun Kim, Sinwoong Yun, Jemin Lee, Eunbyung Park
Recently, multi-agent reinforcement learning (MARL) adopts the centralized training with decentralized execution (CTDE) framework that trains agents using the data from all agents at a centralized server while each agent takes an action from its observation.
no code implementations • 17 Jun 2021 • Minsu Kim, Jeonghun Park, Jemin Lee
We consider an optimization problem that maximizes the sum spectral efficiency of delay-tolerant users while satisfying the latency constraint of delay-constrained users, and propose a generalized power iteration (GPI) precoding algorithm that finds a principal precoding vector.
no code implementations • 14 Apr 2021 • Seongjun Kim, Minsu Kim, Jong Yeol Ryu, Jemin Lee, Tony Q. S. Quek
By considering the antenna tilt angle-based channel gain, we derive the network outage probability for both IS-BS and ES-BS schemes, and show the existence of the optimal tilt angle that minimizes the network outage probability after analyzing the conflict impact of the antenna tilt angle.
no code implementations • 17 Dec 2020 • Minsu Kim, Seongjun Kim, Jemin Lee
In this paper, we analyze the impact of a friendly unmanned aerial vehicle (UAV) jammer on UAV communications in the presence of multiple eavesdroppers.
no code implementations • 12 Nov 2020 • Minsu Kim, Sungho Lee, Chanwon Park, Jemin Lee, Walid Saad
The age of information (AoI) is a recently proposed metric for quantifying data freshness in real-time status monitoring systems where timeliness is of importance.
no code implementations • 28 Oct 2020 • Minsu Kim, Sungho Lee, Chanwon Park, Jemin Lee
In this paper, we explore the data freshness in the Hyperledger Fabric Blockchain-enabled monitoring network (HeMN) by leveraging the AoI metric.