3D optimal surveillance trajectory planning for multiple UAVs by using particle swarm optimization with surveillance area priority

H Teng, I Ahmad, A Msm, K Chang - IEEE Access, 2020 - ieeexplore.ieee.org
The use of the unmanned aerial vehicle (UAV) has been regarded as a promising technique
in both military and civilian applications. However, due to the lack of relevant laws and …

Classification, positioning, and tracking of drones by HMM using acoustic circular microphone array beamforming

J Guo, I Ahmad, KH Chang - EURASIP Journal on Wireless …, 2020 - Springer
This paper addresses issues with monitoring systems that identify and track illegal drones.
The development of drone technologies promotes the widespread commercial application of …

Public safety network design for broadband wireless access

AS Sümer, T Yılmaz, E Memisoglu, A Akkurt… - … in Communications and …, 2023 - frontiersin.org
Public protection and disaster relief (PPDR) agencies rely on wireless communications to
respond in the event of emergencies. Public safety networks (PSNs) provide the wireless …

A successive interference cancellation based random access channel mechanism for machine-to-machine communications in cellular Internet-of-Things

YS Reddy, A Dubey, A Kumar, T Panigrahi - IEEE Access, 2021 - ieeexplore.ieee.org
In Cellular Internet-of-Things, random access channel (RACH) mechanism is used by
machine-to-machine communication (M2M) devices to connect to a base station (BS) for any …

Integrated 2-4 Step Random Access for Heterogeneous and Massive IoT Devices

Y Piao, TJ Lee - IEEE Transactions on Green Communications …, 2023 - ieeexplore.ieee.org
Since massive number of User Equipment (UE) s will cause more collisions and increase
delay, improved Random Access (RA) methods have been researched and proposed. With …

Mission-critical user priority-based cooperative resource allocation schemes for multi-layer next-generation public safety networks

I Ahmad, KH Chang - Physical communication, 2020 - Elsevier
Abstract The Republic of Korea became the first country in the world to have next-generation
long term evolution (LTE) public safety networks, and South Korea's evolution in critical …

Queue-aware access prioritization for massive machine-type communication

MR Chowdhury, S De - IEEE Internet of Things Journal, 2022 - ieeexplore.ieee.org
One of the pivotal services of the fifth generation (5G) of cellular technology is massive
Machine-type Communications (mMTCs), which is intended to support connecting high …

Downlink power allocation strategy for next-generation underwater acoustic communications networks

I Ahmad, KH Chang - Electronics, 2019 - mdpi.com
The increasing interest in next-generation underwater acoustic communications networks is
due to vast investigation of oceans for oceanography, commercial operations in maritime …

Optimizing Cell Association and Stability in Integrated Aerial-to-Ground Next-Generation Consumer Wireless Networks

I Ahmad, R Narmeen, UA Mughal… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
Unmanned aerial vehicles (UAVs) offer advantages in serving as aerial small cells (ASCs) to
support public safety terrestrial cells (PSTCs) while providing pervasive coverage during …

Deep reinforcement learning in M2M communication for resource scheduling

Y Che, F Lin, J Liu - 2021 World Conference on Computing and …, 2021 - ieeexplore.ieee.org
The main traffic of cellular networks is Machine-type Communication (MTC), when a large
number of machine type communication devices (MTCDs) request to access the network, it …