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Fully integrated cmos low gain wide range 2 4 ghz phase locked loop for lr wpan applications

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Fully integrated cmos low gain wide range 2 4 ghz phase locked loop for lr wpan applications Powered By Docstoc
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                                      Mobile and Wireless Communications Network Layer and Circuit
                                      Level Design
                                      Edited by Salma Ait Fares and Fumiyuki Adachi




                                      ISBN 978-953-307-042-1
                                      Hard cover, 404 pages
                                      Publisher InTech
                                      Published online 01, January, 2010
                                      Published in print edition January, 2010


Mobile and wireless communications applications have a clear impact on improving the humanity wellbeing.
From cell phones to wireless internet to home and office devices, most of the applications are converted from
wired into wireless communication. Smart and advanced wireless communication environments represent the
future technology and evolutionary development step in homes, hospitals, industrial, vehicular and
transportation systems. A very appealing research area in these environments has been the wireless ad hoc,
sensor and mesh networks. These networks rely on ultra low powered processing nodes that sense
surrounding environment temperature, pressure, humidity, motion or chemical hazards, etc. Moreover, the
radio frequency (RF) transceiver nodes of such networks require the design of transmitter and receiver
equipped with high performance building blocks including antennas, power and low noise amplifiers, mixers
and voltage controlled oscillators. Nowadays, the researchers are facing several challenges to design such
building blocks while complying with ultra low power consumption, small area and high performance
constraints. CMOS technology represents an excellent candidate to facilitate the integration of the whole
transceiver on a single chip. However, several challenges have to be tackled while designing and using
nanoscale CMOS technologies and require innovative idea from researchers and circuits designers. While
major researchers and applications have been focusing on RF wireless communication, optical wireless
communication based system has started to draw some attention from researchers for a terrestrial system as
well as for aerial and satellite terminals. This renewed interested in optical wireless communications is driven
by several advantages such as no licensing requirements policy, no RF radiation hazards, and no need to dig
up roads besides its large bandwidth and low power consumption. This second part of the book, Mobile and
Wireless Communications: Key Technologies and Future Applications, covers the recent development in ad
hoc and sensor networks, the implementation of state of the art of wireless transceivers building blocks and
recent development on optical wireless communication systems. We hope that this book will be useful for
students, researchers and practitioners in their research studies.



How to reference
In order to correctly reference this scholarly work, feel free to copy and paste the following:


Wenceslas Rahajandraibe, Lakhdar Zaid and Fayrouz Haddad (2010). Fully Integrated CMOS Low-Gain-
Wide-Range 2.4 GHz Phase Locked Loop for LR-WPAN Applications, Mobile and Wireless Communications
Network Layer and Circuit Level Design, Salma Ait Fares and Fumiyuki Adachi (Ed.), ISBN: 978-953-307-042-
1, InTech, Available from: http://www.intechopen.com/books/mobile-and-wireless-communications-network-
layer-and-circuit-level-design/fully-integrated-cmos-low-gain-wide-range-2-4-ghz-phase-locked-loop-for-lr-
wpan-applications




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