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# IEEE Systems Journal

### Early Access Articles

Early Access articles are made available in advance of the final electronic or print versions. Early Access articles are peer reviewed but may not be fully edited. They are fully citable from the moment they appear in IEEE Xplore.

## Filter Results

Displaying Results 1 - 25 of 313
• ### Spectrum-Aware Routing in Full-Duplex Cognitive Radio Networks: An Optimization Framework

Publication Year: 2018, Page(s):1 - 9
| | PDF (684 KB)

Routing and channel assignment schemes for cognitive radio networks (CRNs) are often designed assuming the half-duplex (HD) transmission capability per user. However, recent advances in full-duplex (FD) communications and self-interference suppression techniques challenge the traditional HD transmission capability, in which FD communication can significantly improve spectrum utilization. In this w... View full abstract»

• ### Convex Models for Optimal Utility-Based Distributed Generation Allocation in Radial Distribution Systems

Publication Year: 2018, Page(s):1 - 12
| | PDF (535 KB)

This paper introduces various models for optimal and maximal utility-based distributed generation penetration in the radial distribution systems. Several problems with different probabilistic indices as objective functions constrained by power flow equations, distributed generation penetration, voltage, and thermal limits are proposed to obtain the optimal penetration of distributed generations on... View full abstract»

• ### Capacity-Outage Joint Analysis and Optimal Power Allocation for Wireless Body Area Networks

Publication Year: 2018, Page(s):1 - 12
| | PDF (1996 KB)

Wireless body area networks (WBANs) are characterized by short-range wireless communication between inherently resource-limited sensors that operate in the vicinity of the human body for recording certain physiological signals. One of the main limitations of WBANs is in terms of their available power. Since the nodes are typically battery-driven, an efficient power transmission is essential to gua... View full abstract»

• ### IEC 61850 Modeling of DSTATCOM and XMPP Communication for Reactive Power Management in Microgrids

Publication Year: 2018, Page(s):1 - 11
| | PDF (1749 KB)

Intermittency of renewable energy resources makes reactive power management a challenge in microgrids. Since standards do not recommend the use of distributed energy resources (DERs) for voltage regulation and reactive power management in microgrids, therefore, traditionally, locally controlled Distribution STATic COMpensators (DSTATCOM) are widely used. The management of reactive power requiremen... View full abstract»

• ### Traffic-Aware VANET Routing for City Environments—A Protocol Based on Ant Colony Optimization

Publication Year: 2018, Page(s):1 - 11
| | PDF (932 KB)

This paper presents a traffic-aware position-based routing protocol for vehicular ad hoc networks (VANETs) suitable for city environments. The protocol is an enhanced version of the geographical source routing (GSR) protocol. The proposed protocol, named efficient GSR, uses an ant-based algorithm to find a route that has optimum network connectivity. It is assumed that every vehicle has a digital ... View full abstract»

• ### Congestion Management Using Optimal Transmission Switching

Publication Year: 2018, Page(s):1 - 10
| | PDF (1035 KB)

In this paper, a multiobjective-based congestion management (CM) methodology is proposed using the optimal transmission switching (OTS) strategies considering the minimization of the total operating cost and the maximization of probabilistic reliability as two conflicting objectives. To improve the efficiency of the transmission network, this paper considers the possibility of changing the topolog... View full abstract»

• ### Financial Risk Evaluation of RCS Deployment in Distribution Systems

Publication Year: 2018, Page(s):1 - 10
| | PDF (1168 KB)

Remote controlled switch deployment in distribution networks is usually justified via comparing the required investment with the expected decrease in interruption costs. Although the investment is known prior to the implementation, the stochastic nature of contingencies imposes significant uncertainty on interruption costs. The uncertainty may impose substantial financial risks on the distribution... View full abstract»

• ### Utility-Based Resource Allocation in Wireless-Powered Communication Networks

Publication Year: 2018, Page(s):1 - 4
| | PDF (277 KB)

This paper investigates the joint optimization of time allocation and transmit power in wireless-powered communication networks (WPCNs), where the downlink wireless energy transfer happens in the first phase, and then uplink wireless information transfer takes place in the second phase. Considering the rate fairness among users, we formulate the resource allocation in WPCNs as a network utility ma... View full abstract»

• ### Pursuance of mm-Level Accuracy: Ranging and Positioning in mmWave Systems

Publication Year: 2018, Page(s):1 - 12
| | PDF (906 KB)

This paper aims at investigating the feasibility of ranging and positioning in millimeter (mm)-level accuracy by adopting millimeter-wave (mmWave) and three-dimensional massive antenna arrays. The agent to be localized is equipped with massive uniform rectangular array (URA) and multiple anchors are considered to pursue a higher accuracy, where a far-field environment is assumed for phased massive... View full abstract»

• ### An Ant Path-Oriented Carpooling Allocation Approach to Optimize the Carpool Service Problem With Time Windows

Publication Year: 2018, Page(s):1 - 12
| | PDF (722 KB)

An intelligent carpool system provides people the convenient use of carpool services. In this paper, we take into consideration the time factor of the carpool service problem (CSP) by both the appearance time and the endurance time. The carpool service problem with time windows disfavors carpool solutions in which people show up within a time out. An ant path-oriented carpooling allocation approac... View full abstract»

• ### Maximizing Dynamic Access Energy Efficiency in Multiuser CRNs With Primary User Return

Publication Year: 2018, Page(s):1 - 12
| | PDF (1978 KB) |  Media

Coexistence between primary users and secondary users (SUs) in a cognitive radio network makes interference inevitable. In coexistence with the dynamic primary user, interference has profound implications on network metrics because the interference due to primary user reoccupancies is intense. To improve the spectrum utilization, mitigating interference should be considered. Hence, in this study, ... View full abstract»

• ### Mitigating the Oscillations Between Service Routing and SDN Traffic Engineering

Publication Year: 2018, Page(s):1 - 12
| | PDF (1245 KB)

A wide variety of existing applications will be deployed in software-defined networking (SDN). The centralized controller of SDN has a global network view and determines the forwarding path for each flow, which provides a feasible solution to deploy traffic engineering (SDN-TE). However, the conflict between each service and SDN-TE will occur inevitably due to the divergence of their objectives, a... View full abstract»

• ### An Improved and More Accurate Expression for a PDF Related to Eigenvalue-Based Spectrum Sensing

Publication Year: 2018, Page(s):1 - 4
| | PDF (347 KB)

Cooperative spectrum sensing based on the limiting eigenvalue ratio of the covariance matrix offers superior detection performance and overcomes the noise uncertainty problem. While an exact expression exists, it is complex and multiple useful approximate expressions have been published in the literature. An improved, more accurate, integral solution for the probability density function of the rat... View full abstract»

• ### Optimal Multichannel Slotted ALOHA for Deadline-Constrained Unicast Systems

Publication Year: 2018, Page(s):1 - 4
| | PDF (294 KB)

This paper considers multichannel slotted ALOHA for unicast in an ad hoc network. Under a deadline-constrained scenario that a packet is required to be transmitted to an intended recipient within a strict delivery deadline $D$ (in unit of slot) and retransmission is not allowed, we obtain the optimal channel selection probabilities and the optimal transmission probabi... View full abstract»

• ### Topology-Aware Network Coding for Wireless Multicast

Publication Year: 2018, Page(s):1 - 10
| | PDF (994 KB)

In this paper, we present a topology-aware network coding (TANC) technique for wireless multicast systems aiming at reducing packet retransmissions in a lossy propagation environment. In addition to radio channel impacts, packet loss may result from traffic congestion, thereby yielding different retransmission requests. In such a wireless network coding multicast environment, what is the best pack... View full abstract»

• ### Comparative Study of Different Cost Functions Between Neighbors for Optimizing Energy Dissipation in WSN

Publication Year: 2018, Page(s):1 - 12
| | PDF (813 KB)

Lifetime of a battery is one of the major concerns in wireless sensor networks (WSNs). The traditional network algorithm chooses the data transmission path based on the distance between sender and receiver. For example, in directed diffusion, the nodes closer to the sink node are more active so that the continuous data flow of the network is maintained. However, in such a scenario, there is an ene... View full abstract»

• ### Observer-Based $mathcal{H}_{infty }$ Fault-Tolerant Control for Linear Systems With Sensor and Actuator Faults

Publication Year: 2018, Page(s):1 - 10
| | PDF (840 KB)

In this paper, the design problem of $mathcal{H}_{infty }$ observer-based fault-tolerant control is considered for three faulty cases: sensor only, actuator only, and both sensor and actuator faults. The observers are designed for estimating both states and faults. To reduce the fault effects on the system, virtual observers are first introduced. Based on the virtual ... View full abstract»

• ### A Simple Spatiotemporal Evolution Model of a Transmission Power Grid

Publication Year: 2018, Page(s):1 - 8
| | PDF (1052 KB)

In this paper, we present a model for the spatial and temporal evolution of a particularly large human-made network: the 400-kV French transmission power grid. This is based on 1) an attachment procedure that diminishes the connection probability between two nodes as the network grows and 2) a coupled cost function characterizing the available budget at every time step. Two differentiated and cons... View full abstract»

• ### Fault-Tolerant Formation Control of Nonholonomic Robots Using Fast Adaptive Gain Nonsingular Terminal Sliding Mode Control

Publication Year: 2018, Page(s):1 - 12
| | PDF (1560 KB)

This paper addresses the problem of robust relative motion control in a multirobotic system using the artificial potential field (APF) method for path planning and fast adaptive gain nonsingular terminal sliding mode control (NTSMC) technique for designing a robust controller. A fast adaptive reaching law is also proposed to further improve the speed of convergence. The proposed sliding surface as... View full abstract»

• ### Network Monitoring in Software-Defined Networking: A Review

Publication Year: 2018, Page(s):1 - 12
| | PDF (457 KB)

Monitoring is an important concept in network management as it helps network operators to determine the behavior of a network and the status of its components. Traffic engineering, quality of service, and anomaly detection also depend on monitoring for decision making. Software-defined networking (SDN) is becoming increasingly popular for network provision and management tasks. This paper surveys ... View full abstract»

• ### A Stackelberg Game-Theoretical Approach to Maritime Counter-Piracy

Publication Year: 2018, Page(s):1 - 12
| | PDF (887 KB)

In this paper, we provide a maritime counter-piracy framework to represent the strategies put in place and the interaction between a set of actors (patrollers and attackers) in a wide maritime scenario. Specifically, we model the interaction between patrollers and attackers in terms of a Stackelberg leader–follower game. With respect to the previous literature, we provide several innovation... View full abstract»

• ### Optimal Placement and Sizing of Distributed Generation and Capacitor Banks in Distribution Systems Using Water Cycle Algorithm

Publication Year: 2018, Page(s):1 - 8
| | PDF (720 KB)

Integration of distributed generation units (DGs) and capacitor banks (CBs) in distribution systems aim to enhance the system performance. This paper proposes water cycle algorithm (WCA) for optimal placement and sizing of DGs and CBs. The proposed method aims to achieve technical, economic, and environmental benefits. Different objective functions: minimizing power losses, voltage deviation, tota... View full abstract»

• ### Multistakeholder Dynamic Optimization for Acknowledged System-of-Systems Architecture Selection

Publication Year: 2018, Page(s):1 - 12
| | PDF (721 KB)

Architecture selection for acknowledged System-of-Systems in a dynamic environment, with multiple conflicted and independent stakeholders involved, remains a difficult problem. This paper presents a multistakeholder dynamic optimization method that combines approximate dynamic programming and a transfer contract coordination mechanism through a value function approximation. The method solves a mul... View full abstract»

• ### UBCGaming: Ubiquitous Cloud Gaming System

Publication Year: 2018, Page(s):1 - 12
| | PDF (1208 KB)

Cloud gaming provides a novel service model by hosting game engines in the cloud and delivering real-time gaming videos ubiquitously to the players through the Internet. However, the diversity of end-user devices and frequent changes in network quality of service and cloud responses result in variable quality of experience for game players. This paper presents the design and implementation of a co... View full abstract»

• ### Border Surveillance With WSN Systems in a Distributed Manner

Publication Year: 2018, Page(s):1 - 10
| | PDF (775 KB)

Border surveillance is an application of wireless sensor networks (WSNs) and it is mainly used for security purpose. The present issue of implementing this application is a barrier coverage in WSNs. Due to energy constraints, minimizing energy consumption of sensors is a critical challenge. This paper presents a new distributed approach to the border surveillance in WSNs in order to maximize the n... View full abstract»

## Aims & Scope

The IEEE Systems Journal provides a systems-level, focused forum for application-oriented manuscripts that address complex systems and system-of-systems of national and global significance.

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Professor Vincenzo Piuri
Università degli Studi di Milano