Jul 2026· Journal of Circuits, Systems and Computers· 0 citations
TL;DR
A lightweight, QoS-aware service placement algorithm that evaluates latency, bandwidth, and node load in real time is introduced that yields reduced latency and more consistent wait times relative to heuristic and genetic baselines.
Abstract
Due to the rapid growth of IoT and smart city applications the need for low-latency efficient service provisioning in distributed systems has grown substantially. Conventional cloud-centric architectures which rely on centralized processing tend to introduce significant latency that makes them ill-suited for real-time IoT workloads. This work addresses the challenge of service placement and resource allocation for IoT applications operating across multi cloud and fog computing infrastructures. Achieving satisfactory Quality of Service (QoS) requires simultaneous consideration of latency, bandwidth and resource utilization. Current single cloud and statically configured deployment strategies struggle with scalability and responsiveness in dynamic IoT scenarios. There is a clear need for adaptive intelligent frameworks capable of handling fluctuating workloads and heterogeneous resource availability. To address task placement, this work introduces a lightweight, QoS-aware service placement algorithm that evaluates latency, bandwidth, and node load in real time. Fog-layer task scheduling is handled through an enhanced weighted fair queuing (EWFQ) mechanism that incorporates user-defined priorities and live feedback signals. A weighted Q-learning algorithm (WQLA) is further introduced to refine placement decisions by learning from interactions with the deployment environment across multi-cloud and fog nodes. Simulation results confirm that the proposed approach yields reduced latency and more consistent wait times relative to heuristic and genetic baselines. Energy efficiency and service availability are also sustained under varying load conditions. The combined, adaptive framework delivers a practical and scalable method for IoT service provisioning in multi-cloud environment, advancing the groundwork for future work in context-sensitive, secure, and scalable resource management.
Today, with the rapid growth of the Internet of Things (IoT), the volume of data generated and processed has increased significantly, and there is an urgent need to handle tasks quickly and efficiently in real‐time applications. Existing cloud‐based models are not capable of meeting these demands due to their deployment model that adds latency. The separation of the control and data planes has the potential to provide a solution to Software‐Defined Networking (SDN) that offers centralised control, programmability, and dynamic network management. However, efficient scheduling of activities and workloads among the different edge servers is one of the imperative issues since an inefficient allocation of the resources may lead to server congestion, high latency rates, and resource wastages. To overcome this, the article presents the Average‐Based Load Balancing and Resource Allocation Mechanism (ALBRAM), which identifies suitable nodes and dynamically allocates resources to maintain the load balance among all the servers. It recommends a three‐layer SDN‐based edge computing architecture providing a bridge between the IoT devices, middle nodes, and the edge servers, considering both the communication and computation time. The strategy uses a least‐load server selection mechanism to provide fairness, optimal resource utilisation, and balanced workloads. The results of the evaluation indicate that ALBRAM decreases the Makespan, total completion time and latency and increases resource utilization, and the efficiency of load‐balancing in comparison to existing methods.
Ajay Nain, Rohit Malik, Sophiya Sheikh et al.· Concurrency and Computation· 0 citations
The paper argues for a shift from proof of concept scheduling studies toward reproducible, transparent, and deployable fog systems, and identifies several priorities for future work: standardized benchmark workloads, cloud native scheduling that accounts for container lifecycle and microservice dependencies, resilience aware scheduling that treats failures and migration as first class concerns, and carbon aware orchestration that extends beyond energy minimization.
Albahlool M Abood· Asian Journal of Research in...· 0 citations
The Internet of Things (IoT) has grown rapidly in recent years, enabling the interconnection of a large number of heterogeneous and distributed devices. This number is expected to exceed 70 billion according to Statista. With this massive scale, fulfilling complex IoT applications that require combinations of multiple objects remains a real challenge. Moreover, several Quality of Service (QoS) requirements must be satisfied, making the problem of selecting appropriate IoT services NP-hard. In such environments, task offloading is a key mechanism to efficiently distribute computational workloads across edge, fog, and cloud resources. However, selecting the optimal offloading decision remains a difficult NP-hard problem due to system heterogeneity and conflicting objectives. In this paper, we propose a GNN-DQN-based approach for task offloading in edge–fog–cloud environments. Unlike prior GNN-DQN approaches limited to single- or dual-tier architectures, our framework explicitly models heterogeneous node types and inter-tier communication links, enabling more balanced and scalable resource allocation. Experimental results show that GNN-DQN achieves a mean latency of 2.64 s, representing improvements of 70.2% over Random, 7.8% over DQN-only, and 3.5% over Greedy. A GNN-A2C baseline is also included to broaden the comparison with a modern DRL method. Despite sharing the same GNN encoder, it underperforms GNN-DQN across all metrics, confirming the superiority of the DQN learning backbone. These results highlight the effectiveness of integrating graph-based representation with reinforcement learning, while also revealing a trade-off between latency optimization and energy efficiency.
Sirine Hakim, Sonia Yassa· International Conference on...· 0 citations
Findings confirm that system stability and service quality are bounded by fog density, QoS-aware routing, and real-time load regulation, rather than by mere resource scaling.
The study concludes that intelligent edge computing architectures will play a vital role in supporting future real-time applications and next-generation 6G-enabled digital ecosystems.
Alan Bundy· International Journal of Mod...· 0 citations