Results 171 to 180 of about 7,178 (195)
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Linear Precoding for Downlink MC-CDMA Systems
2007 IEEE Wireless Communications and Networking Conference, 2007In this paper, as an alternative to post-detection techniques, we derive two iterative joint linear precoding and power allocation methods for downlink MC-CDMA systems with multiple transmit antennas at the base station. The first method optimally solves the so called assigned target SINRs problem, i.e.
BENVENUTO, NEVIO +2 more
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A MC-CDMA Indoor Geolocation System
2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006A direct sequence spread spectrum (DSSS), orthogonal frequency division multiple access (OFDM), code division multiple access (CDMA) and frequency division multiple access (FDMA) (or MC-CDMA) indoor geolocation system is presented and discussed in this paper.
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Integer-forcing receiver for MC-CDMA system
The Sixth International Workshop on Signal Design and Its Applications in Communications, 2013Integer-forcing (IF) linear receiver has been recently introduced for multiple-input multiple-output (MIMO) fading channels. The integer coefficients have to be chosen based on the channel realizations, and the choice of such coefficients is known to determine the receiver performance.
Hao Luo +3 more
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Blind multiuser detection for MC-CDMA systems
Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002., 2003This paper deals with blind multiuser detection for asynchronous multicarrier code-division multiple-access (MC-CDMA) systems. A two-stage linear multiuser detector is proposed, where the first stage performs preliminary disturbance mitigation, allowing thus the second stage, based on the constant modulus algorithm (CMA), to operate with nearly ...
DARSENA D +3 more
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Spreading Sequence Design for MC-CDMA Systems
2007 IEEE International Conference on System of Systems Engineering, 2007The paper presents a new approach of optimal spreading sequence allocation in the uplink of a multi-carrier code division multiple access (MC-CDMA) system. The algorithm is implemented as a distributed optimization problem, where each user will minimize its cost function, by choosing a codeword that suits better to the interference pattern.
Catalin Lacatus +2 more
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Medical Images Transmitting Using MC-CDMA System
2019 6th International Conference on Image and Signal Processing and their Applications (ISPA), 2019The transmission of medical images via a communication system makes allows medical staff to achieve several diagnoses and significantly reduces the distance traveled by the patients. The good quality of the transmitted images is more necessary to provide a good diagnosis.
Mohammed Sofiane Bendelhoum +3 more
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IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002
In this paper, we present a M-ary MC-CDMA system for 4G which can support data rates up to 20 Mbps. In the transmitter, data bits are serial to parallel converted, then applying M-ary orthogonal modulation, the modulated symbol is spread using each chip of complex orthogonal codes.
null Wuyang Zhou +2 more
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In this paper, we present a M-ary MC-CDMA system for 4G which can support data rates up to 20 Mbps. In the transmitter, data bits are serial to parallel converted, then applying M-ary orthogonal modulation, the modulated symbol is spread using each chip of complex orthogonal codes.
null Wuyang Zhou +2 more
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Joint Transceiver Optimization in MC-CDMA Systems
IEICE Transactions on Communications, 2009Multicarrier code division multiple access (MC-CDMA) systems are well suited for high data rate wireless multimedia services, due to their ability to convert frequency-selective fading channels to distinct flat fading channels with low complexity fast Fourier transform (FFT) devices.
Kyoungnam SEO, Haniph LATCHMAN
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On optimization of CI/MC-CDMA system
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009This paper proposes a new model of high capacity carrier interferometry/multicarrier code division multiple access (CI/MCCDMA) system through the simultaneous support of high and low data rate transmission using odd and even subcarriers. Reduction in peak-to-average power ratio (PAPR) is achieved through the phase shift of even (odd) CI code using odd (
Santi P. Maity, Mithun Mukherjee
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Throughput Maximization of Downlink MC-CDMA Systems
2009 IEEE 70th Vehicular Technology Conference Fall, 2009Motivated by the increasing popularity of multi- carrier code division multiple access (MC-CDMA) systems, this letter studies the throughput maximization of MC-CDMA as a downlink multi-carrier multiple-access scheme and presents the theoretical analysis for the optimal solution to throughput optimization problem of downlink MC-CDMA systems. Then, a low-
Jun-Bo Wang, Ming Chen, Jiangzhou Wang
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