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Interleaved frequency division multiple access for uplink VLC
2016 15th International Conference on Optical Communications and Networks (ICOCN), 2016We propose an uplink visible light communication (VLC) scheme based on interleaved frequency division multiple access (IFDMA), which provides some highly desirable features such as high spectral efficiency and high tolerance against multipath distortion.
null Bangjiang Lin +6 more
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Fast-convolution multicarrier based frequency division multiple access
Science China Information Sciences, 2019Fast-convolution multicarrier (FCMC), the asynchronous waveform with ultra-low sidelobe, has appeared to be a promising waveform technique for future wireless communications. In this paper, we investigate the filter bank optimization as well as receiver design including low-complexity channel estimator and equalizer for FCMC based frequency division ...
Yining Li +3 more
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An analysis of orthogonal frequency-division multiple access
GLOBECOM 97. IEEE Global Telecommunications Conference. Conference Record, 2002We analyze the performance of orthogonal frequency-division multiple access (OFDMA) for the return channel on CATV networks, and compare this technique to the well-known time-division multiple access (TDMA). We examine the basic implementation issues of OFDMA including clock and carrier frequency synchronization, power control and ranging, and point ...
H. Sari, Y. Levy, G. Karam
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Orthogonal frequency division multiple access with cyclic delay diversity
ITG Workshop on Smart Antennas (IEEE Cat. No.04EX802), 2005Cyclic delay diversity is a simple transmit diversity technique for coded OFDM systems with multiple transmit antennas. It does neither require an extended guard interval nor modifications of the standard OFDM receiver. We discuss the problem of choosing the cyclic delays and propose a solution which enables to exploit the full spatial diversity in ...
G. Bauch, J.S. Malik
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Orthogonal Frequency Division Multiple Access in WiMAX and LTE: A Comparison
IEEE Communications Magazine, 2012<p>Orthogonal frequency-division multiple access has been adopted by both the WiMAX and Long Term Evolution standards, which are the two main contenders in the 4G wireless scenario. In this article, we do a detailed comparison of the implementation of OFDMA in LTE and WiMAX.
S. Srikanth +2 more
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Microwave and Optical Technology Letters, 2014
ABSTRACTIn this letter, we introduce a frequency division concept for passive wireless sensors utilizing the intermodulation communication principle. This concept enables multiple identifications (IDs) and multiple access protocol when several sensors are within the reading range of the corresponding reader.
Song, Jinsong +4 more
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ABSTRACTIn this letter, we introduce a frequency division concept for passive wireless sensors utilizing the intermodulation communication principle. This concept enables multiple identifications (IDs) and multiple access protocol when several sensors are within the reading range of the corresponding reader.
Song, Jinsong +4 more
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Time and frequency synchronization of orthogonal frequency division multiple access systems
ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240), 2002We propose a non-data aided synchronization algorithm for orthogonal frequency division multiple access systems. The method is applied to both quasisynchronous and asynchronous systems. The proposed algorithm does not require the transmission of training sequences or of repeated symbols and, differently from all available methods, our frequency ...
BARBAROSSA, Sergio +2 more
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Frequency-Division Multiple Access
1991In Chapter 4 we analyzed a single-channel transponder with a single uplink carrier. We now extend the discussion to transponders designed for multiple carriers. Recall that when multiple carriers are used in satellite communications, it is necessary that a multiple-accessing format be established over the system.
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2012 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), 2012
Rapid increasing activity in Fiber To The Home (FTTH) deployment in Malaysia and general desired to eventually migrate to these systems inspire to the reduction in overall cost and components required to deploy FTTH. This paper proposed implementation of Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) in FTTH to ...
Nur Shazwani Mohd Noor +3 more
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Rapid increasing activity in Fiber To The Home (FTTH) deployment in Malaysia and general desired to eventually migrate to these systems inspire to the reduction in overall cost and components required to deploy FTTH. This paper proposed implementation of Multiple Input Multiple Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) in FTTH to ...
Nur Shazwani Mohd Noor +3 more
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Frequency Division Multiple Access (FDMA)
2018FDMA (frequency division multiple access) is the oldest communication technique used in broadcasting, land-mobile two-way radio, etc. It begins with a band of frequencies, which is allocated by the FCC (Federal Communications Commission). This band of frequency is further divided into several narrow bands of frequencies, where each frequency, also ...
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