Conference Link: http://www.winsys.org

Foreword: This book contains the proceedings of the 18th International Conference on Wireless Networks and Mobile Systems (WINSYS 2021), which was sponsored and organized by the Institute for Systems and Technologies of Information, Control and Communication (INSTICC). This year, WINSYS is held as a web-based event from July 7-9, 2021 due to the COVID-19 pandemic. The purpose of WINSYS, the International Conference on Wireless Networks and Mobile Systems, is to bring together researchers, engineers and practitioners interested on information systems and applications in the context of wireless networks and mobile technologies. Information systems and information technology are pervasive in the whole communications field, which is quite vast, encompassing a large number of research topics and applications: from practical issues to the more abstract theoretical aspects of communication; from low level protocols to high-level networking and applications; from wireless networking technologies to mobile information systems; many other topics are included in the scope of WINSYS. The high quality of the WINSYS 2021 program is enhanced by four distinguished keynote lectures, delivered by renowned international experts in their fields: Chase Wu (New Jersey Institute of Technology, United States), Muhammad Sajjad (NTNU, Norway), Sandra Sendra (Universitat Politécnica de Valencia, Spain) and Shahid Mumtaz (Instituto de Telecomunicações, Portugal) WINSYS 2021 received 22 paper submissions from more than 16 countries. To evaluate each submission, a double-blind paper review was performed by the Program Committee, whose members were carefully selected and are highly qualified researchers in WINSYS topic areas. Based on the provided classifications, 4 papers were selected as full papers which led to a full paper acceptance ratio of 18%. This strict acceptance ratio shows the intention to preserve a high-quality forum which we expect to develop further next year. The WINSYS conference series intends to be a meeting place where information exchange occurs and where collaboration projects emerge from social contacts amongst the participants. All papers presented at this conference will be available at the SCITEPRESS Digital Library and a short list of papers will be selected and invited, to submit extended revised versions of their papers for a book that will be published by Springer with the best papers of WINSYS 2021. Also, a short list of papers presented will be selected for publication of extended and revised versions in a special issue of Springer Nature Computer Science Journal and another short list of papers presented will be selected for publication of extended and revised versions in a special issue of the Electronics Journal. We would like to express our thanks to all participants, and particularly to the authors, whose quality works provide the essence of this conference. Secondly, we owe gratitude to all members of the Program Committee and auxiliary reviewers, who helped us with their expertise and valuable time. We would also like to deeply thank the invited speakers for the excellent contribution in sharing their knowledge and vision. Finally, we gratefully acknowledge the professional support of the INSTICC team for all organizational processes, especially given the need to introduce online streaming, forum management, direct messaging facilitation and other web-based activities in order to make it possible for authors to present their work and share ideas with colleagues in spite of the logistic difficulties caused by the current pandemic situation. We hope that the papers accepted and included in the proceedings will be helpful references in future works for all those who need to address topics in any of the WINSYS knowledge areas. We wish you all an inspiring conference and we hope to meet you next year for WINSYS 2022, details of which will soon be available at http://www.winsys.org/ (More)

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