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On the achievable throughput of a multiantenna Gaussian broadcast channel
  • G. Caire, S. Shamai
  • Computer Science
  • IEEE Transactions on Information Theory
  • 1 July 2003
Under certain mild conditions, this scheme is found to be throughput-wise asymptotically optimal for both high and low signal-to-noise ratio (SNR), and some numerical results are provided for the ergodic throughput of the simplified zero-forcing scheme in independent Rayleigh fading. Expand
Mutual information and minimum mean-square error in Gaussian channels
A new formula is shown that connects the input-output mutual information and the minimum mean-square error (MMSE) achievable by optimal estimation of the input given the output, which has an unexpected consequence in continuous-time nonlinear estimation. Expand
Multi-Cell MIMO Cooperative Networks: A New Look at Interference
An overview of the theory and currently known techniques for multi-cell MIMO (multiple input multiple output) cooperation in wireless networks is presented and a few promising and quite fundamental research avenues are also suggested. Expand
The Capacity Region of the Gaussian Multiple-Input Multiple-Output Broadcast Channel
A new notion of an enhanced broadcast channel is introduced and is used jointly with the entropy power inequality, to show that a superposition of Gaussian codes is optimal for the degraded vector broadcast channel and that DPC is ideal for the nondegraded case. Expand
Linear precoding via conic optimization for fixed MIMO receivers
The proposed precoder design is general, and as a special case, it solves the transmit rank-one beamforming problem and can significantly outperform existing linear precoders. Expand
Fading Channels: Information-Theoretic and Communication Aspects
This paper describes the statistical models of fading channels which are frequently used in the analysis and design of communication systems, and focuses on the information theory of fading channel, by emphasizing capacity as the most important performance measure. Expand
Spectral Efficiency of CDMA with Random Spreading
The CDMA channel with randomly and independently chosen spreading sequences accurately models the situation where pseudonoise sequences span many symbol periods. Furthermore, its analysis provides aExpand
Nested linear/Lattice codes for structured multiterminal binning
Nested codes are proposed, or more specifically, nested parity-check codes for the binary case and nested lattices in the continuous case, which connect network information theory with the rich areas of linear codes and lattice codes, and have strong potential for practical applications. Expand
Information theoretic considerations for cellular mobile radio
We present some information-theoretic considerations used to determine upper bounds on the information rates that can be reliably transmitted over a two-ray propagation path mobile radio channelExpand
Degrees of Freedom Region of the MIMO $X$ Channel
  • S. Jafar, S. Shamai
  • Mathematics, Computer Science
  • IEEE Transactions on Information Theory
  • 21 July 2006
We provide achievability as well as converse results for the degrees of freedom region of a multiple-input multiple-output (MIMO) X channel, i.e., a system with two transmitters, two receivers, eachExpand