Asymmetric Mixing Matrix Optimization for Faster Average Consensus in Wireless Sensor Networks

被引:1
|
作者
Jiang, Miao [1 ]
Li, Yiqing [2 ]
机构
[1] Guangdong Univ Technol, Sch Informat Engn, Guangzhou 510006, Peoples R China
[2] Guangdong Univ Technol, Sch Comp Sci & Technol, Guangzhou 510006, Peoples R China
来源
IEEE INTERNET OF THINGS JOURNAL | 2024年 / 11卷 / 20期
基金
中国国家自然科学基金;
关键词
Wireless sensor networks; Symmetric matrices; Network topology; Internet of Things; Convergence; Optimization; Vectors; Distributed consensus; mixing matrix; nonconvex optimization; spectral radius; MULTIAGENT SYSTEMS; CONVERGENCE; MIN;
D O I
10.1109/JIOT.2024.3438539
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Achieving fast and accurate average consensus is pivotal for numerous collaborative tasks in wireless sensor networks (WSNs). Toward this end, this article explores the design of asymmetric mixing matrices for achieving faster average consensus rate in WSNs. We first demonstrate that the optimal symmetric mixing matrices may achieve much slower consensus rate compared to an asymmetric mixing matrix, and formulate the design of the asymmetric mixing matrix as a nonconvex spectral radius minimization problem. To address this challenge, a locally optimal iterative spectral norm-based method is proposed. Furthermore, to reduce the computational complexity while maintaining an acceptable level of performance gains, we also introduce two suboptimal methods based on the Frobenius norm and the numerical radius upper bounds, respectively. Through extensive simulation results across both fixed and random network topologies, we demonstrate that our proposed asymmetric schemes outperform existing benchmark optimal symmetric and best constant schemes in terms of the spectral radius and the consensus time performance.
引用
收藏
页码:34035 / 34047
页数:13
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