Elements of information theory
Elements of information theory
Multiuser Detection
Precoding and Signal Shaping for Digital Transmission
Precoding and Signal Shaping for Digital Transmission
Convex Optimization
Random matrix theory and wireless communications
Communications and Information Theory
Tail behavior of sphere-decoding complexity in random lattices
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 2
On the complexity of sphere decoding in digital communications
IEEE Transactions on Signal Processing
Linear transmit processing in MIMO communications systems
IEEE Transactions on Signal Processing - Part I
Precoding in multiantenna and multiuser communications
IEEE Transactions on Wireless Communications
A stochastic MIMO channel model with joint correlation of both link ends
IEEE Transactions on Wireless Communications
Capacity scaling in MIMO wireless systems under correlated fading
IEEE Transactions on Information Theory
Communication Over MIMO Broadcast Channels Using Lattice-Basis Reduction
IEEE Transactions on Information Theory
Vector Precoding for Wireless MIMO Systems and its Replica Analysis
IEEE Journal on Selected Areas in Communications
On convex vector precoding for multiuser MIMO broadcast channels
IEEE Transactions on Signal Processing
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We address the possibility of overloaded vector precoding in single user MIMO channels, i.e. the number of data streams is larger than the minimum of the number of antennas at transmitter and receiver side.We find that the convex vector precoding introduced in [1] allows for overloading while, with a certain probability, keeping the received signal free of interference. We find that the probability that overloading is not possible decays exponentially with the size of the system as long as the number of data streams is less than twice the minimum number of antennas. We give an explicit formula to calculate this probability for any antenna configuration in presence of correlated Rayleigh fading. Although overloading comes with the need for increased transmitted power, we show by means of the replica method that overloading up to 22% yields better spectral and power efficiency than without overload and spatial matched filter processing at the receiver.