Results 151 to 160 of about 15,137 (178)
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Wireless Personal Communications, 2017
Underwater acoustic (UWA) communication suffers from large propagation delays, limited bandwidth, frequency dependent attenuation and severe multipath fading. Low power consumption, acceptable bit error rate and minimal complexity are three critical factors for UWA sensor network design.
Vinay Kumar Trivedi, Preetam Kumar
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Underwater acoustic (UWA) communication suffers from large propagation delays, limited bandwidth, frequency dependent attenuation and severe multipath fading. Low power consumption, acceptable bit error rate and minimal complexity are three critical factors for UWA sensor network design.
Vinay Kumar Trivedi, Preetam Kumar
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A review of OFDMA and single-carrier FDMA
2010 European Wireless Conference (EW), 2010The debate on OFDM vs. single-carrier (SC) transmission started back in the 1980s at the time of the European Digital Audio Broadcasting (DAB) and Digital Video Broadcasting (DVB) projects. The same questions arose later in wireless communications, and OFDM transmission with TDMA was adopted in the IEEE 802.11a specifications for wireless local area ...
Ciochina, Cristina, Sari, Hikmet
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Optimal Channelization in FDMA Communications
IEEE Transactions on Aerospace and Electronic Systems, 1974For most efficient performance in frequency-division multiple access (FDMA), a hard-limiting repeater should be operated completely channelized (i.e., each uplink carrier should be individually filtered and power-controlled prior to spacecraft limiting and downlink transmission).
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Sc-FDMA MIMO detectors using MATLAB
2017 2nd International Conference on Computing and Communications Technologies (ICCCT), 2017Multiple - Input Multiple - Output is another era innovation that guarantees noteworthy increments in throughput and scopes of remote correspondence with no expansion in transmit control. A MIMO framework depends on procedures, for example, spatial multiplexing, transmit differing qualities and beam forming to enhance the nature of transmission ...
null Vennila N +2 more
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C35. Wavelet-based SC-FDMA system
2012 29th National Radio Science Conference (NRSC), 2012Recent research has shown that the Single Carrier Frequency Division Multiple Access (SC-FDMA) is an attractive technology for uplink broadband wireless communications, because it does not have the problems of Orthogonal Frequency Division Multiple Access (OFDMA) such as the large Peak-to-Average Power Ratio (PAPR).
M. A. Abd El-Hamed +5 more
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Constant-envelope SC-FDMA for nonlinear satellite channels
2013 IEEE Global Communications Conference (GLOBECOM), 2013The increasing demand for broadband service delivery by satellite connections is still a challenge particularly due to the nature of the satellite channel. Multi-carrier techniques such as OFDM, OFDMA and SC-FDMA, which have successfully been deployed in terrestrial networks to achieve broadband access, present some limitations when applied to the ...
Mulinde, Ronald +2 more
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PAPR Performance Analysis of SC-FDMA and SC-FDMA-DSCDMA
2022 8th International Conference on Contemporary Information Technology and Mathematics (ICCITM), 2022Mohammed Hamzah Owaid, Samir J. Mohammed
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Coded SC-FDMA for broadband satellite return links
2012 6th Advanced Satellite Multimedia Systems Conference (ASMS) and 12th Signal Processing for Space Communications Workshop (SPSC), 2012In this paper we deal with Single Carrier Frequency Division Multiple Access (SC-FDMA) as uplink air interface of broadband satellite networks. Interestingly, SC-FDMA enables a significant increase of the spectral efficiency with respect to the state-of-the-art single-carrier systems.
ROSATI, STEFANO +2 more
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Low Complexity FDM/FDMA Approach for Future PON
Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, 2013FDMA PON allows the ONU complexity and cost to be tailored to the service level targeted per customer while achieving high per wavelength throughput (35-39Gbps downlink). Initial progress towards an all Silicon ONU is presented.
Lebreton, Aurélien +6 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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