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The Effect of Timing Jitter on MC-DS-CDMA
IEEE Transactions on Communications, 2004In this paper, we consider the effect of timing jitter on the performance of a multicarrier direct-sequence code-division multiple-access system for both uplink and downlink transmission, assuming orthogonal spreading sequences. Theoretical expressions are derived for the performance degradation caused by the timing jitter, in the presence of a ...
Heidi Steendam, Marc Moeneclaey
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Performance of MC-DS-CDMA in the presence of timing jitter
2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), 2011In this paper, we study the bit error rate performance of MC-DS-CDMA system under the effects of timing jitter in multipath Rayleigh fading environment. In particular, we have formulated the analytical expression for MC-DS-CDMA test statistic and investigated the bit error rate performance in the presence of white or colored timing jitters via computer
Xiang Gui, Lindong Xu
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Wavelet Networks for MAI cancellation in MC-DS/CDMA
2016 5th International Conference on Multimedia Computing and Systems (ICMCS), 2016The Weighted Despreading Sequences are deployed for an optimal use in Multiple Access Interference annulation caused by users multiple access to the channel. Our paper's aim is to develop a simple method based on Wavelet Networks to calculate these WDS MC-DS/CDMA system.
Taoufiq Ait Benrami +3 more
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Multirate MC-DS-CDMA transmitter for 4G communications
IEEE 60th Vehicular Technology Conference, 2004. VTC2004-Fall. 2004, 2005The scheme of a multirate 4G transmitter based on MC-DS-CDMA is proposed. The system is designed to minimize intercarrier interference (ICI) and multiaccess interference (MAI), taking into account the autocorrelation properties of the CDMA codes assigned to each user on each subcarrier. The system employs two layered spreading codes in a similar way to
Isabel Barbancho +3 more
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BER of MC-DS-CDMA systems with CFO and nonlinear distortions
2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004Multicarrier systems are highly sensitive to the intercarrier interference (ICI) caused by a carrier frequency offset (CFO) at the receiver and to the intermodulation distortion (IMD) introduced by the nonlinear amplifier (NLA) at the transmitter. We analyze how these impairments degrade the bit-error rate (BER) of multicarrier direct-sequence code ...
RUGINI, LUCA, BANELLI, Paolo
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Simulation of coded MC-DS-CDMA systems
Proceedings RAWCON 98. 1998 IEEE Radio and Wireless Conference (Cat. No.98EX194), 2002We use computer simulations to compare the performance improvements associated with coding on a Gaussianized BPSK-MC-DS-CDMA system and a non-Gaussianized DPSK-MC-DS-CDMA system. The effects of coding on the Gaussianized system approach the performance of a coded BPSK system operating in a Gaussian channel while the non-Gaussianized system performance ...
T.B. Welch, R.E. Ziemer
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Reduction of intracell and intercell interference for array MC-DS-CDMA
GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489), 2004The paper is concerned with asynchronous, multicarrier DS-CDMA communications using a receiver with an antenna array. An estimator is proposed to find the composite channel vector for each-intracell user; the only prerequisite being that each user's spreading sequence is available at the receiver. In the uplink, the base station typically does not have
David J. Sadler, Athanassios Manikas
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