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This SpringerBrief examines the active cooperation between users of
Cooperative Cognitive Radio Networking (CCRN), exploring the system
model, enabling techniques, and performance. The brief provides a
systematic study on active cooperation between primary users and
secondary users, i.e., (CCRN), followed by the discussions on
research issues and challenges in designing spectrum-energy
efficient CCRN. As an effort to shed light on the design of
spectrum-energy efficient CCRN, they model the CCRN based on
orthogonal modulation and orthogonally dual-polarized antenna
(ODPA). The resource allocation issues are detailed with respect to
both models, in terms of problem formulation, solution approach,
and numerical results. Finally, the optimal communication
strategies for both primary and secondary users to achieve
spectrum-energy efficient CCRN are analyzed.
COVID-19: The Essentials of Prevention and Treatment elaborates on
the ethology, pathogenesis, epidemiology, clinical characteristics,
treatment principles, rehabilitation and prevention, and prevention
and control measures for COVID-19. Aimed at healthcare workers, and
written to be a practical guide, six chapters cover the following
aspects of COVID-19: respiratory viruses; pathogenesis; case
definitions and diagnosis; treatment; prevention and disease
control; and prospects for the management and research of
respiratory virus infections. This book gives first-hand
information on the prevention, control, diagnosis and treatment of
COVID-19. COVID-19 was recognized as a pandemic in March 2020 by
the World Health Organization. It is a disease caused by severe
acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Physicians
working in China, particularly where the outbreak was first
identified in Wuhan, have built up knowledge of prevention and
control measures, and diagnosis and treatment of this disease.
These insights are now globally relevant. The authors of this book
are senior physicians specializing in respiratory diseases,
pulmonary diseases and critical care medicine, and are all clinical
and scientific research experts working in China, with particular
experience in Wuhan.
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