Wireless Network and Security -- Possibility of using existed WLAN infrastructure as an emergency network for air-to-ground transmissions: the case of WebRTC-based flying IoT system -- Constructing a Green MPTCP Framework for Industrial Internet of Things Applications -- Identification of Significant Permissions for Efficient Android Malware Detection -- Energy efficiency optimization for RF energy harvesting relay system -- Communication Quality -- Analysis of QoS schemes and shaping strategies for large scale IP networks based on Network Calculus -- Research on information transmission characteristics of two-layer communication network -- Detection of Malicious Android Applications: Classical Machine Learning vs. Deep Neural Network Integrated with Clustering -- Go2Edge - Edge Computing Networks, Systems and Services -- Experimental Evaluation of RSA Algorithms for SDN programmable VCSEL-based S-BVT in High-Capacity and Cost-Efficient Optical Metro Networks -- Implementing a blockchain-based security system applied to IoT -- Joint Core and Spectrum Allocation in Dynamic Optical Networks with ROADMs with no Line Changes -- Comparison of efficient planning and optimization methods of last mile delivery resources -- Decision Making under Uncertainty for the deployment of future networks in IoT Scenarios -- An initial approach to a Multi-Access Edge Computing reference architecture implementation using Kubernetes.

This book constitutes the refereed post-conference proceedings of the 11th International Conference on Broadband Communications, Networks, and Systems, Broadnets 2020, which took place in Qingdao, China, in December 2020. The 13 full papers presented were carefully reviewed and selected from 32 submissions. The papers are thematically grouped as a session on wireless network and security and a session on communication quality.