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 Spectrum Coordination Protocols and Algorithms for Wireless Networks. A Cognitive Radio Study
Наименование:

Spectrum Coordination Protocols and Algorithms for Wireless Networks. A Cognitive Radio Study

автор Xiangpeng J. издательство Книга по Требованию Локальные и корпоративные сети
Cтраниц 124        мягкая обложка       
Аннотация:After validating its utility for coordination between existing wireless standards (such as IEEE 802. 11/WiFi, Bluetooth, and 802. 16/WiMax), the spectrum etiquette protocol is extended to serve as the foundation for a more complete adaptive wireless network where radio nodes may cooperate by forming or joining autonomous ad hoc clusters with multi-hop routing. The performance of the proposed class of spectrum etiquette protocols is evaluated in various wireless network scenarios and compared with simpler reactive interference avoidance schemes. This book is targeting at audience who has basic wireless communication background and would like to learn more about spectrum coordination problems in cognitive radio networks. This book focuses on the problem of efficiently sharing spectrum resources in wireless networks through the use of appropriate spectrum etiquette protocols and related coordination algorithms. Validation results using a combination of ns-2 simulations and experiments on the 20x20 ORBIT radio grid testbed are presented in this book. A cognitive radio protocol stack is proposed for this scenario.
Автор: Xiangpeng J.
Издательство: Книга по Требованию
Год:2009
Цена:
2384 руб
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Поиск: Spectrum Coordination Protocols and Algorithms for Wireless Networks. A Cognitive Radio Study
НОВЫЙ ГОД СИМВОЛ 2013 ГОДАУКРАШЕНИЯ
КАРНАВАЛ НА НОВЫЙ ГОД РАСПРОДАЖА
Ортомолекулярная медицина Orthomol Устрание причин заболеваний. Ортомоль это новый метод для лечения и профилактики болезней. Orthomol - ортомолекулярная медицина.
Беспроводные сети

В портативных компьютерах со встроенными аппаратными средствами Wi-Fi для подключения беспроводного адаптера используется интерфейс mi i-PCI; антенна располагается за панелью экран. При подобной компоновке компьютера освобождается один из разъёмов PC Card, что выгодно отличает его от портативных систем, использующих внешний адаптер PC Card и антенну. Сеть Radio LA Wireless Mobil i k использует те же беспроводные сетевые адаптеры IEEE 802.11b, которые были описаны выше. Однако при этом Radio LA работает на частоте 5.8 ГГц, что позволяет достигнуть большей скорости, чем в сетях IEEE 802.11b. И по этой же причине такие сети не могут связываться между собой. Устройства Radio LA могут соединяться с обычными сетями 10BASE- через мост Backbo e LI K; кроме того, Radio LA предоставляет устройства-мосты для связи сетей E her e 10BASE- на расстоянии до 1.3 км. Логические топологии беспроводных сетей. Беспроводные сети могут иметь две логические топологии. . Звездообразная. Эта топология, применяемая в устройствах стандарта 802.11b и Radio LA , напоминает одноименную топологию сетей стандарта 10BASE- и остальных, более скоростных версий E her e с концентратором.
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