المؤلف
Khalighi, M. A., Uysal, Murat
تاريخ النشر
2014
مكان النشر
-
IEEE
الموضوع
MIMO communication, Atmospheric turbulence, Channel coding, Cooperative communication, Data communication, Diversity reception, Fading, Local area networks, Metropolitan area networks, Modulation, Next generation networks, Optical communication, Optical links, Optical receivers, Optical transmitters, Telecommunication network reliability
النوع
دورية
اللغة
الإنجليزية
رقمي
نعم
مخطوط
لا
المكتبة
جامعة اوزيجين
معرف أصل المكتبة
1553-877X
رقم السجل
7c13dbed-283f-4ca8-af74-ddafe20eda1f
موقع المكتبة
Electrical & Electronics Engineering
التاريخ
2014
ملاحظات
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
نص عينة
Optical wireless communication (OWC) refers to transmission in unguided propagation media through the use of optical carriers, i.e., visible, infrared (IR), and ultraviolet (UV) bands. In this survey, we focus on outdoor terrestrial OWC links which operate in near IR band. These are widely referred to as free space optical (FSO) communication in the literature. FSO systems are used for high rate communication between two fixed points over distances up to several kilometers. In comparison to radio-frequency (RF) counterparts, FSO links have a very high optical bandwidth available, allowing much higher data rates. They are appealing for a wide range of applications such as metropolitan area network (MAN) extension, local area network (LAN)-to-LAN connectivity, fiber back-up, backhaul for wireless cellular networks, disaster recovery, high definition TV and medical image/video transmission, wireless video surveillance/monitoring, and quantum key distribution among others. Despite the major advantages of FSO technology and variety of its application areas, its widespread use has been hampered by its rather disappointing link reliability particularly in long ranges due to atmospheric turbulence-induced fading and sensitivity to weather conditions. In the last five years or so, there has been a surge of interest in FSO research to address these major technical challenges. Several innovative physical layer concepts, originally introduced in the context of RF systems, such as multiple-input multiple-output communication, cooperative diversity, and adaptive transmission have been recently explored for the design of next generation FSO systems. In this paper, we present an up-to-date survey on FSO communication systems. The first part describes FSO channel models and transmitter/receiver structures. In the second part, we provide details on information theoretical limits of FSO channels and algorithmic-level system design research activities to approach these limits. Specifi- topics include advances in modulation, channel coding, spatial/cooperative diversity techniques, adaptive transmission, and hybrid RF/FSO systems.
DOI
10.1109/COMST.2014.2329501
Cilt
16
