Description: This mfile simulates Multicarrier CDMA with three equalization methods (Zero Forcing, MRC and EGC).
Also this simulation is designed for two users. Platform: |
Size: 15360 |
Author:Ardalan |
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Description: It s general about multicode-multicarrier CDMA system (theorial (PDF), simulate (matlab code)). it is used improve MC-CDMA system methods Platform: |
Size: 3274752 |
Author:lam |
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Description: This paper compares between the BER performance of DS-CDMA, Multicarrier DS-CDMA, and MT-CDMA schemes in a synchronous downlink communication channel. Platform: |
Size: 692224 |
Author:sh3e |
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Description: This paper studied the carrier-frequency offset effect on the performance of asynchronous multicarrier direct-sequence code-division multiple-access (MC-DS-CDMA) systems with aperiodic random spreading and correlated Rayleigh fading. This paper also compared the performance of MC-CDMA systems using the optimum combining technique with that of different combining filters. Platform: |
Size: 396288 |
Author:sh3e |
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Description: This paper analyzed the spectral efficiency (total channel capacity per subband) of randomly-spread synchronous multicarrier code-division multiple-access (MCCDMA) channel subject to frequency-selective fading in the asymptotic regime of number of users and bandwidth going to infinity with a constant ratio for uplink and downlink. The following receivers are analyzed in this paper: a) jointly optimum receiver, b) linear MMSE receiver, c) decorrelator, and d) single-user matched filter. Platform: |
Size: 145408 |
Author:sh3e |
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Description: 一篇非常实用的无线通信方向的文献，是关于cdma系统中doa估计的经典-The use of antenna arrays in wireless communications
makes it possible to estimate the directions of arrival (DOAs)
of impinging waveforms. The latter can be exploited to enhance
channel estimation accuracy or as an input for advanced mobile
positioning systems. In this paper, we consider the uplink of a
multicarrier code-division multiple-access (MC-CDMA) network
in which the base station is endowed with multiple receiving antennas
arranged in a uniform linear array. Transmission takes place
over a multipath channel, and the goal is the joint estimation of
the channel responses and DOAs of the uplink signals. In doing so,
we follow a maximum-likelihood (ML) approach and assume that
users transmit orthogonal training sequences to facilitate the task
of separating the signals. This way, all unknown parameters are
estimated independently of each other with affordable complexity.
Theoretical analysis and computer simulations are used to assess
the performance of the propose Platform: |
Size: 249856 |
Author:Zhang Lin |
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Description: 多载波调制(Multicarrier Modulation)采用了多个载波信号。它把数据流分解为若干个子数据流，从而使子数据流具有低得多的传输比特速率，利用这些数据分别去调制若干个载波。所以，在多载波调制信道中，数据传输速率相对较低，码元周期加长，只要时延扩展与码元周期相比小于一定的比值，就不会造成码间干扰。因而多载波调制对于信道的时间弥散性不敏感。多载波调制可以通过多种技术途径来实现，如多音实现(Multitone Realization)、正交多载波调制(OFDM)、MC-CDMA和编码MCM(Coded MCM)。其中，OFDM可以抵抗多径干扰，是当前研究的一个热点。-Multi carrier modulation (Multicarrier Modulation) uses multiple carrier signal. It decomposes a data stream into a plurality of sub data stream, so that the sub data stream transmission bit rate is much lower, respectively to a plurality of carrier modulation using these data. Platform: |
Size: 1024 |
Author:小丸子 |
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Description: Several approaches to combine multicarrier modulation with code-division multiple access (CDMA) techniques have been proposed with the aim of bringing the best of both worlds to wireless communications [1]. Among these, multi-carrier CDMA (MC-CDMA), also known as orthogonal frequency division multiplexing Platform: |
Size: 521216 |
Author:emman |
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Search - multicarrier cdma