Yazar
Heidarpour, A. R., Heidarpour, M. R., Ardakani, M., Tellambura, C., Uysal, Murat
Basım Tarihi
2023-10-15
Basım Yeri
-
IEEE
Konu
Deep reinforcement learning (DRL), Internet of Things (IoT), Lifetime maximization, Mobile-edge computing (MEC), Soft actor-critic (SAC)
Tür
Süreli Yayın
Dil
İngilizce
Dijital
Evet
Yazma
Hayır
Kütüphane
Özyeğin Üniversitesi
Demirbaş Numarası
2327-4662
Kayıt Numarası
7a1981b7-fbb3-41ee-882e-138924d72966
Lokasyon
Electrical & Electronics Engineering
Tarih
2023-10-15
Notlar
Telus Communications Inc. ; Natural Sciences and Engineering Research Council of Canada
Örnek Metin
This article studies the network lifetime optimization problem in a multiuser mobile-edge computing (MEC)-enabled Internet of Things (IoT) system comprising an access point (AP), a MEC server, and a set of K mobile devices (MDs) with limited battery capacity. Considering the residual battery energy at the MDs, stochastic task arrivals, and time-varying wireless fading channels, a soft actor-critic (SAC)-based deep reinforcement learning (DRL) lifetime maximization, called DeepLM, is proposed to jointly optimize the task splitting ratio, the local CPU-cycle frequencies at the MDs, the bandwidth allocation, and the CPU-cycle frequency allocation at the MEC server subject to the task queuing backlogs constraint, the bandwidth constraint, and maximum CPU-cycle frequency constraints at the MDs and the MEC server. Our results reveal that DeepLM enjoys a fast convergence rate and a small oscillation amplitude. We also compare the performance of DeepLM with three benchmark offloading schemes, namely, fully edge computing (FEC), fully local computing (FLC), and random computation offloading (RCO). DeepLM increases the network lifetime by 496% and 229% compared to the FLC and RCO schemes. Interestingly, it achieves such a colossal lifetime improvement when its nonbacklog probability is 0.99, while that of FEC, FLC, and RCO is 0.69, 0.53, and 0.25, respectively, showing a significant performance gain of 30%, 46%, and 74%.
DOI
10.1109/JIOT.2023.3277753
Cilt
10
