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Record Nr. |
UNINA9910455429303321 |
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Autore |
Abate Zerihun |
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Titolo |
WiMax RF systems engineering / / Zerihun Abate |
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Pubbl/distr/stampa |
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Boston : , : Artech House, , ©2009 |
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[Piscataqay, New Jersey] : , : IEEE Xplore, , [2009] |
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ISBN |
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Descrizione fisica |
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1 online resource (340 p.) |
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Collana |
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Artech House mobile communications series |
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Disciplina |
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Soggetti |
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Broadband communication systems |
Mobile communication systems |
Wireless communication systems |
Electronic books. |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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WiMAX RF Systems Engineering; Contents; Preface; Part I Introduction; Chapter 1 Introduction; Chapter 2 OFDM Flavors, ISI, Doppler, Rayleigh, andFading; Part II Technical Background; Chapter 3 Modulation; Chapter 4 RF Propagations, Measurements, and Models; Chapter 5 Communication Channel Characterization; Part III WiMAX Radio Design; Chapter 6 Network Planning Fundamentals; Chapter 7 Point-to-Point Link Design; Chapter 8 Link, Design, Oversubscription, and Delay; Chapter 9 WiMAX Capacity, Frequency Planning, and MIMO Antennas; Chapter 10 Case Study |
Chapter 11 Preliminary Design to BenchmarkingPart IV Network and Security; Chapter 12 Fundamentals of WiMAX Network; Chapter 13 WiMAX Security; Part V Comparable Systems; Chapter 14 WiFi Radio Planning; Chapter 15 UMTS and WiMAX Comparison; Chapter 16 Competing with and Complementing WiMAX; Appendix A Erlang B; Appendix B Erlang C; Appendix C Error Functions; Appendix D Mathematical Formula; D.1 Basic RF Design Formulas; Acronyms; About the Author; Index |
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Sommario/riassunto |
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Already deployed in over 42 countries, WiMAX is quickly becoming one of the most important technologies for IP-based high-speed |
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communications. This practical book delivers a solid understanding of WiMAX technology and RF network planning and deployment techniques without undue mathematical rigors. You find numerous examples and real-world case studies that illustrate the evolution of the design process. The book provides hands-on details on essential considerations and important aspects of the technology, from link budget, communication channel characterization, and capacity, to frequency planning, channel impairments and point-to-point link design. You also find in-depth discussions on WiMAX security and how WiMAX complements other technologies. |
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2. |
Record Nr. |
UNINA9910557295403321 |
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Autore |
Synnefa Afroditi |
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Titolo |
Survivability under Overheating : The impact of Regional and Global Climate Change on Vulnerable and Low Income Population |
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Pubbl/distr/stampa |
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Basel, Switzerland, : MDPI - Multidisciplinary Digital Publishing Institute, 2020 |
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Descrizione fisica |
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1 online resource (106 p.) |
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Soggetti |
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Research and information: general |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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The present book discusses three significant challenges of the built environment, namely regional and global climate change, vulnerability, and survivability under the changing climate. Synergies between local climate change, energy consumption of buildings and energy poverty, and health risks highlight the necessity to develop mitigation strategies to counterbalance overheating impacts. The studies presented here assess the underlying issues related to urban overheating. Further, the impacts of temperature extremes on the low-income population and increased morbidity and mortality have been discussed. The increasing intensity, duration, and frequency of heatwaves due to human-caused |
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climate change is shown to affect underserved populations. Thus, housing policies on resident exposure to intra-urban heat have been assessed. Finally, opportunities to mitigate urban overheating have been proposed and discussed. |
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