Joint Placement and Device Association of UAV Base Stations in IoT Networks
Yükleniyor...
Dosyalar
Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Mdpi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Drone base stations (DBSs) have received significant research interest in recent years. They provide a flexible and cost-effective solution to improve the coverage, connectivity, quality of service (QoS), and energy efficiency of large-area Internet of Things (IoT) networks. However, as DBSs are costly and power-limited devices, they require an efficient scheme for their deployment in practical networks. This work proposes a realistic mathematical model for the joint optimization problem of DBS placement and IoT users' assignment in a massive IoT network scenario. The optimization goal is to maximize the connectivity of IoT users by utilizing the minimum number of DBS, while satisfying practical network constraints. Such an optimization problem is NP-hard, and the optimal solution has a complexity exponential to the number of DBSs and IoT users in the network. Furthermore, this work also proposes a linearization scheme and a low-complexity heuristic to solve the problem in polynomial time. The simulations are performed for a number of network scenarios, and demonstrate that the proposed heuristic is numerically accurate and performs close to the optimal solution.
Açıklama
Aurangzeb, Dr. Khursheed/0000-0003-3647-8578; akram, tallha/0000-0003-4578-3849; Kulac, Selman/0000-0002-7737-1569; awais, muhammad/0000-0003-3791-4140
WOS: 000469766800201
PubMed: 31075952
WOS: 000469766800201
PubMed: 31075952
Anahtar Kelimeler
resource management, Unmanned aerial vehicles (UAVs), Aerial base stations, Internet of Things (IoTs)
Kaynak
Sensors
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
19
Sayı
9
