Results 141 to 150 of about 9,667 (179)
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Cooperative scheme in SFN positioning system
2012 Ubiquitous Positioning, Indoor Navigation, and Location Based Service (UPINLBS), 2012In order to solve the problem of cooperative issue in single frequency network (SFN) positioning system, in this paper, a cooperative positioning scheme using the fundamental characteristic of SFN is proposed. Some different signal levels are described for cooperative signal selection.
Jun Yan, Lenan Wu, Feng He, Man Feng
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GA-Based Green SFN Planning for DTMB
2013 IEEE International Conference on Green Computing and Communications and IEEE Internet of Things and IEEE Cyber, Physical and Social Computing, 2013This paper proposed an approach based on genetic algorithm (GA) to deploy green single frequency network (SFN) for digital terrestrial television multimedia broadcasting (DTMB). The network optimization goal is to achieve energy efficiency, low cost, low carbon and low exposure to radiation, which caters to the sustainable development strategy.
Caiwei Li, Xiaolin Zhang
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Methods for downlink performance enhancement in HST SFN
2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), 2016With the rapid development of the high-speed-trains (HSTs), companies are paying more and more attention on HST wireless communication system. Although some schemes have been proposed to enhance the system performance, there are still many challenges, e.g. high penetration loss, large Doppler shift, low data rate and so on.
Fankui Lin +4 more
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Experimental characterization of a SFN digital broadcast channel
2012 IEEE Latin-America Conference on Communications, 2012In this paper, a Single Frequency Network (SFN) broadcast propagation channel is characterized using measurements performed at a suburban region with two synchronized transmitters a mobile receiver unit. The path loss gain and improvement associated to the SFN scheme is obtained, as well as the multipath channel parameters, including the mean and r.m.s.
Maurício V. Guerra +2 more
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Single-Frequency Networks (SFN)
2021The ability to create a network of transmitters operating on the same carrier frequency in synchronized method, i.e., the single-frequency network (SFN), is closely related to the OFDM channel modulation system developed for DAB digital radio, especially that transmitter separations within SFN depend on length of the guard interval in the OFDM symbols.
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Mobile Testing of ATSC 3.0 MISO in SFN
2019 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2019This paper presents effect of distributed multiple input single output technique (MISO), known as transmit diversity code filter set (TDCFS), in mobile environments. Distributed MISO technique has been adopted in the ATSC 3.0 standard to reduce interference caused by multiple single frequency network (SFN) transmitters.
Bo-Mi Lim +7 more
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The Phasor Representation of the OFDM Signal in the SFN Networks
IEEE Transactions on Broadcasting, 2004The multipath is a cause of frequency notches leading to signal fading. In order to get insight into this effect the connections between individual path parameters and frequency envelope of the OFDM signal are needed. To this aim the phasor representation of the OFDM signal is proposed.
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