F. Gfeller, W. Hirt, M. de Lange and B. Weiss, "Wireless Infrared Transmission: How to Reach All Office Space", Proc. of IEEE Vehicular Technol. Conf., pp. 1535-1539, Atlanta, Georgia, April, 1996. VII. Tables and Figures Tab l e 1 : Symbols used in SNR analysis of CCR-based uplink.  Home/Search Document Not in Database Summary Related Articles Check |
This paper is cited in the following contexts:
Wireless Infrared Communications - Joseph Kahn Member (Correct)
....for transmitter and receiver located 1.2 m and 1.6 m below the ceiling, respectively. b) Measured in a collection of rooms, showing effect of shadowing at receiver [17] increase of path loss with can be made more gradual by employing several emitters angled in different directions [1] [32]. This strategy is employed in some commercial diffuse links. Fig. 7(a) shows the path loss of a diffuse link, which was measured in a typical office [17] The one bounce theory (12) is reasonably accurate, but it underestimates by a few decibels. Accurate prediction of requires the inclusion of ....
....and the signals from several photodetectors can be processed by a single preamplifier, provided that the total receiver input capacitance is acceptably small. EGC is used in some diffuse systems at bit rates up to 4 Mb s, helping them achieve very robust operation, even in the face of shadowing [32]. A promising means to implement angle diversity reception is by using an imaging diversity receiver [8] 31] This consists of an imaging optical concentrator that has a segmented photodetector array placed at its focal plane, as shown in Fig. 22(b) Each detector output is preamplified ....
F. Gfeller, W. Hirt, M. de Lange, and B. Weiss, "Wireless infrared transmission: How to reach all office space," in Proc. IEEE Vehic. Technol. Conf., Atlanta, GA, Apr. 1996, pp. 1535--1539.
IrDA: Past, Present and Future - Williams (2000) (1 citation) (Correct)
....of the reservation messages is extended by boosting the transmission power for the related MAC PDUs. AIR makes use of a variable rate (VR) coding technique known as repetition coding to robustly code the headers of all AIR MAC PDUs. The use of this technique was pioneered by IBM Research in Zurich [18], and full details are given in the AIR physical layer specification [19] Repetition coding trades signal tonoise ratio (SNR) range) for transmission rate by repetition of physical layer symbols. Repetition decoders average the repeated symbols received prior to making a decision on what ....
F. Gfeller et al., "Wireless Infrared Transmission: How to Reach All Office Space," Proc. VTC '96, vol. 3 pp. 1535--9.
Performance Evaluation of - Ppm Links Using (Correct)
.... the other hand, IR signals are affected by severe noise and disturbance, such as diffuse propagation paths, background ambient light producing shot noise in the photo detector, and physical obstructions of the line of sight, which in many cases reduce the reliability of the transmitted information [1]. Since IR systems are subject to large dynamic variations of signal to noise ratio (SNR) at the receiver depending on the above mentioned properties of IR medium, the system suffers from unacceptably high error rates or loss of connections at a fixed data rate. The required SNR improvements can ....
....depending on the above mentioned properties of IR medium, the system suffers from unacceptably high error rates or loss of connections at a fixed data rate. The required SNR improvements can be achieved by reducing the signaling bandwidth accordingly and accepting the reduction of user data rate [1]. Reducing the user data rate by a factor of RR (rate reduction) results in an RR fold SNR improvement. With this concept, the receiver monitors the channel conditions and requests up or down scaling of the user data rate from the transmitter whenever the channel warrants it. The receivers receive ....
[Article contains additional citation context not shown here]
F. Gfeller, W. Hirt, M. de Lange and B. Weiss, "Wireless Infrared Transmission: How to Reach All Office Spaces", Proc. of IEEE Vehicular Tech. Conf., Vol. 3, pp.1535-1539, Atlanta, GA, 1996.
Wireless Communications for Smart Dust - Hsu Kahn And (1998) (3 citations) (Correct)
No context found.
F. Gfeller, W. Hirt, M. de Lange and B. Weiss, "Wireless Infrared Transmission: How to Reach All Office Space", Proc. of IEEE Vehicular Technol. Conf., pp. 1535-1539, Atlanta, Georgia, April, 1996. VII. Tables and Figures Tab l e 1 : Symbols used in SNR analysis of CCR-based uplink.
Online articles have much greater impact More about CiteSeer.IST Add search form to your site Submit documents Feedback
CiteSeer.IST - Copyright Penn State and NEC