Results 121 to 130 of about 5,689 (160)
Some of the next articles are maybe not open access.
Optical Wireless Communication
Proceedings of the 24th Annual International Conference on Mobile Computing and Networking, 2018Data is the new currency impacting everybody's lives. As the modern world receives & sends millions of Terabytes of data every day, the present-day wireless data communication technologies comprising of Wi-Fi & 4G-LTE is on the verge of becoming partially inept for information exchange as they suffer from spectrum congestion in both controlled and ...
openaire +1 more source
On the capacity of indoor optical wireless communications
IEEE Communications Letters, 2006In this letter, the capacity of an optical wireless communications system in an indoor environment is investigated. We consider various modulation schemes, e.g. pulse-position modulation (L-PPM), differential pulse-position modulation (L-DPPM) and differential amplitude pulse-position modulation (AtimesL-DAPPM).
Ubolthip Sethakaset, T. Aaron Gulliver
openaire +1 more source
Optical wireless MIMO communications (OMIMO)
IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2005We propose optical wireless multiple-input multiple-output (OMIMO) communications to achieve high speed transmission with a compact transmitter and receiver. In OMIMO, by using zero forcing (ZF), we can eliminate the other signal interferences transmitted from other optical transmit antennas.
Daisuke Takase, Tomoaki Ohtsuki
openaire +1 more source
Optical wireless communication systems. [PDF]
In recent years, Optical Wireless (OW) communication techniques have attracted substantial attention as a benefit of their abundant spectral resources in the optical domain, which is a potential solution for satisfying the ever-increasing demand for increased wireless capacity in the conventional Radio Frequency (RF) band.
openaire +1 more source
Standards for indoor Optical Wireless Communications
IEEE Communications Magazine, 2015The application of Optical Wireless Communications (OWC) has grown in recent years that the whole industry would benefit from common standards to which competitive products comply. Standards are essential, particularly when the market expands into high-volume products like home appliances and other consumer goods. This article offers a timely review of
Boucouvalas, A. C. +4 more
openaire +2 more sources
Optical wireless modem for office communication
Proceedings of the May 16-19, 1983, national computer conference on - AFIPS '83, 1983A novel type of optical wireless modem, suitable for office communication, is described.Two types of modems, satellite and terminal, each of which consists of head and body, have been developed. The satellite head is usually attached to a ceiling or wall, and the terminal is placed adjacent to a data terminal.
Takatoshi Minami +4 more
openaire +1 more source
Sequential detection for optical wireless scattering communication
2016 IEEE International Conference on Communications Workshops (ICC), 2016In an optical wireless scattering communication network, the receiver needs to periodically listen to the channel to detect whether the channel is occupied by other transceiver pairs. It falls into the spectrum sensing category of the cognitive radio. In this work, we adopt the sequential detection for the spectrum sensing, for both the photon-counting
Xiaona Liu, Chen Gong 0001, Zhengyuan Xu
openaire +1 more source
Optical Wireless Communications for Heterogeneous DARS
2018Distributed autonomous robotic systems (DARS) can provide essential support to human task forces in a variety of missions. Maintaining reliable communications on these mobile networks is critically important for cooperative autonomy. Radio-frequency is the common wireless communication technology employed for task coordination.
Patricio Cruz +3 more
openaire +1 more source
Optical Wireless Communication for Mobile Platforms
2016The past few decades have witnessed the widespread adaptation of wireless devices such as cellular phones and Wifi-connected laptops, and demand for wireless communication is expected to continue to increase. Though radio frequency (RF) communication has traditionally dominated in this application space, recent decades have seen an increasing ...
openaire +3 more sources
Trends and Progress in Optical Wireless Communications
Optical Fiber Communication Conference, 2017Free-space optical communications has been of interest for many years, however, there remain theoretical and algorithmic challenges in its implementation. In this paper, I describe recent trends and results from our research in advancing the modelling and information theory for free-space optical channels in space and in scattering environments.
openaire +2 more sources

