39 citations · 57 across the 30 of their papers we have counts for
12 papers · 1 filter
Controllability Backbone in Networks
Obaid Ullah Ahmad, Waseem Abbas, Mudassir Shabbir
This paper studies the controllability backbone problem in dynamical networks defined over graphs. The main idea of the controllability backbone is to identify a small subset of ed…
Edge Augmentation with Controllability Constraints in Directed Laplacian Networks
Waseem Abbas, Mudassir Shabbir, Yasin Yazıcıoglu +1
In this paper, we study the maximum edge augmentation problem in directed Laplacian networks to improve their robustness while preserving lower bounds on their strong structural co…
Interplay Between Resilience and Accuracy in Resilient Vector Consensus in Multi-Agent Networks
Waseem Abbas, Mudassir Shabbir, Jiani Li +1
In this paper, we study the relationship between resilience and accuracy in the resilient distributed multi-dimensional consensus problem. We consider a network of agents, each of…
Strong Structural Controllability of Diffusively Coupled Networks: Comparison of Bounds Based on Distances and Zero Forcing
Yasin Yazicioglu, Mudassir Shabbir, Waseem Abbas +1
We study the strong structural controllability (SSC) of diffusively coupled networks, where the external control inputs are injected to only some nodes, namely the leaders. For suc…
Improving Network Robustness through Edge Augmentation While Preserving Strong Structural Controllability
Waseem Abbas, Mudassir Shabbir, Hassan Jaleel +1
In this paper, we consider a network of agents with Laplacian dynamics, and study the problem of improving network robustness by adding a maximum number of edges within the network…
Resilient Distributed Vector Consensus Using Centerpoints
Waseem Abbas, Mudassir Shabbir, Jiani Li +1
In this paper, we study the resilient vector consensus problem in networks with adversarial agents and improve resilience guarantees of existing algorithms. A common approach to ac…
On the Impacts of Redundancy, Diversity, and Trust in Resilient Distributed State Estimation
Aritra Mitra, Faiq Ghawash, Shreyas Sundaram +1
We address the problem of distributed state estimation of a linear dynamical process in an attack-prone environment. Recent attempts to solve this problem impose stringent redundan…
Computation of the Distance-based Bound on Strong Structural Controllability in Networks
Mudassir Shabbir, Waseem Abbas, A. Yasin Yazicioglu +1
In this paper, we study the problem of computing a tight lower bound on the dimension of the strong structurally controllable subspace (SSCS) in networks with Laplacian dynamics. T…
Structural Robustness to Noise in Consensus Networks: Impact of Degrees and Distances, Fundamental Limits, and Extremal Graphs
Yasin Yazicioglu, Waseem Abbas, Mudassir Shabbir
We investigate how the graph topology influences the robustness to noise in undirected linear consensus networks. We measure the structural robustness by using the smallest possibl…
On the Trade-off Between Controllability and Robustness in Networks of Diffusively Coupled Agents
Waseem Abbas, Mudassir Shabbir, A. Yasin Yazicioglu +1
In this paper, we demonstrate a conflicting relationship between two crucial properties---controllability and robustness---in linear dynamical networks of diffusively coupled agent…
Vulnerability of Fixed-Time Control of Signalized Intersections to Cyber-Tampering
Amin Ghafouri, Waseem Abbas, Yevgeniy Vorobeychik +1
Recent experimental studies have shown that traffic management systems are vulnerable to cyber-attacks on sensor data. This paper studies the vulnerability of fixed-time control of…
Sensor placement for fault location identification in water networks: A minimum test cover approach
Lina Sela Perelman, Waseem Abbas, Xenofon Koutsoukos +1
This paper focuses on the optimal sensor placement problem for the identification of pipe failure locations in large-scale urban water systems. The problem involves selecting the m…