منابع مشابه
Optical Wireless Communications
People’s ideas about communications have changed completely, nowadays when this subject is mentioned almost everyone thinks of wireless communications. The demand for broadband wireless communications offering greater and greater data rates is endless, and the radio-technology community is trying harder and harder to satisfy this demand. Recently, there was the worldwide launch of 4th generatio...
متن کاملOptical Wireless Communications
The use of mobile devices, e.g., laptops, cell phones and PDAs, has become ubiquitous. Users expect to access very high-speed networks from anywhere and be able to communicate with other users, and share common resources such as printers, at high data rates. As a consequence, wireless local area networks (WLANs) have become the subject of intense research. WLANs are subject to more noise and in...
متن کاملon Wireless Communications and Networking Optical Wireless Communications
This is a special issue published in volume 2005 of " EURASIP Journal on Wireless Communications and Networking. " All articles are open access articles distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Seamless integration of the technology into products which a...
متن کاملGuest editorial: optical wireless communications
the last two decades, wireless communications has gained enormous popularity, offering attractive options for many personal and organizational communication needs due to major intrinsic characteristics such as flexibility, cost effectiveness, and mobility. Two transmission techniques for wireless communications have been deployed so far; Radio Frequency (RF) and Optical Communications. While th...
متن کاملIndoor Non-directed Optical Wireless Communications - Optimization of the Lambertian Order
For an indoor non-directed line of sight optical wireless communication (NLOS-OWC) system we investigate the optimized Lambertian order (OLO) of light-emitting diodes (LEDs). We firstly derive an expression for the OLO from a conventional Lambertian LED model. Then, we analyze the indoor multi-cell NLOS-OWC channel characteristics including the optical power distribution and the multipath time ...
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ژورنال
عنوان ژورنال: IEEE Communications Magazine
سال: 2003
ISSN: 0163-6804
DOI: 10.1109/mcom.2003.1186544