Optimum receivers and low-dimensional spreaded modulation for multiuser space-time communications
نویسندگان
چکیده
منابع مشابه
Optimum receivers and low-dimensional spreaded modulation for multiuser space-time communications
Abstract— The jointly optimum receiver is obtained for multiuser communications in a frequency non-selective Rayleigh fading channel with transmit antennas per user and receive antennas. Based on a general analysis of quadratic receivers in zero-mean complex Gaussian vectors, asymptotically tight expressions (for high SNR) for the pairwise error probabilities are derived. Subsequently, it is sh...
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The jointly optimum noncoherent receiver is obtained for multiuser communications in a frequency non-selective Rayleigh fading channel with NT transmit antennas per user and NR receive antennas. Based on a general analysis of quadratic receivers in zero-mean complex Gaussian vectors, we derive asymptotically (for high SNR) tight expressions for the pair-wise error probabilities for some cases o...
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The jointly optimum receiver is obtained for multiuser communications in a frequency non-selective Rayleigh fading channel with NT transmit antennas per user and NR receive antennas. Based on a general analysis of quadratic receivers in zero-mean complex Gaussian vectors, asymptotically tight expressions (for high SNR) for the pair-wise error probabilities are derived. Consequently, it is shown...
متن کاملLow-Dimensional Spreading Matrices for Multiuser Space-Time Modulation
In [1] we proposed a multiuser space-time modulation scheme that leverages single-user space-time constellations and guarantees both, a full diversity order, as well as an asymptotic (high SNR) single-user like performance for every user. This is achieved by multiplying each user’s space-time information matrix symbol by a low-dimensional “spreading matrix.” For instance, for NT-transmit antenn...
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In this paper, noncoherent receivers for differential space–time modulation (DSTM) are investigated. It is shown that the performance of the previously proposed conventional differential detection (DD) receiver is satisfactory only for very slow flat fading channels. However, conventional DD suffers from a considerable loss in performance even for moderately fast fading. In order to overcome th...
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ژورنال
عنوان ژورنال: IEEE Transactions on Information Theory
سال: 2003
ISSN: 0018-9448
DOI: 10.1109/tit.2003.809565