Bit-interleaved coded modulation
- G. Caire, G. Taricco, E. Biglieri
- Computer ScienceProceedings of IEEE International Symposium on…
- 29 June 1997
A unified theory of bit-interleaved coded modulation is presented, tools for performance analysis and guidelines for its design are given.
On the achievable throughput of a multiantenna Gaussian broadcast channel
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.
Joint Spatial Division and Multiplexing—The Large-Scale Array Regime
- Ansuman Adhikary, Junyoung Nam, J. Ahn, G. Caire
- Computer ScienceIEEE Transactions on Information Theory
- 1 October 2013
JSDM achieves significant savings both in the downlink training and in the CSIT uplink feedback, thus making the use of large antenna arrays at the base station potentially suitable also for frequency division duplexing systems, for which uplink/downlink channel reciprocity cannot be exploited.
On maximum-likelihood detection and the search for the closest lattice point
- M. O. Damen, H. E. Gamal, G. Caire
- Computer ScienceIEEE Transactions on Information Theory
- 1 October 2003
A novel algorithm is developed that is inspired by the Pohst enumeration strategy and is shown to offer a significant reduction in complexity compared to the Viterbo-Boutros sphere decoder and is supported by intuitive arguments and simulation results in many relevant scenarios.
FemtoCaching: Wireless Content Delivery Through Distributed Caching Helpers
- Karthikeyan Shanmugam, Negin Golrezaei, A. Dimakis, A. Molisch, G. Caire
- Computer ScienceIEEE Transactions on Information Theory
- 1 December 2013
This work shows that the uncoded optimum file assignment is NP-hard, and develops a greedy strategy that is provably within a factor 2 of the optimum, and provides an efficient algorithm achieving a provably better approximation ratio of 1-1/d d, where d is the maximum number of helpers a user can be connected to.
The throughput of hybrid-ARQ protocols for the Gaussian collision channel
- G. Caire, Daniela Tuninetti
- Business, Computer ScienceIEEE Transactions on Information Theory
- 1 July 2001
The throughput of automatic retransmission request (ARQ) protocols is compared to that of code division multiple access (CDMA) with conventional decoding and Interestingly, the ARQ systems are not interference-limited even if no multiuser detection or joint decoding is used, as opposed to conventional CDMA.
FemtoCaching: Wireless video content delivery through distributed caching helpers
- Negin Golrezaei, Karthikeyan Shanmugam, A. Dimakis, A. Molisch, G. Caire
- Computer ScienceProceedings IEEE INFOCOM
- 19 September 2011
The theoretical contribution of this paper lies in formalizing the distributed caching problem, showing that this problem is NP-hard, and presenting approximation algorithms that lie within a constant factor of the theoretical optimum.
Optimum power control over fading channels
- G. Caire, G. Taricco, E. Biglieri
- Computer ScienceIEEE Transactions on Information Theory
- 1 July 1999
From the single-user point of view considered in this paper, there exists an optimal repetition diversity order (or spreading factor) that minimizes the information outage probability for given rate, power, and fading statistics.
Multiuser MIMO Achievable Rates With Downlink Training and Channel State Feedback
- G. Caire, N. Jindal, M. Kobayashi, N. Ravindran
- Computer ScienceIEEE Transactions on Information Theory
- 16 November 2007
It is shown that very significant downlink throughput is achievable with simple and efficient channel state feedback, provided that the feedback link is properly designed.
On the capacity of some channels with channel state information
This paper deals with channels with causal transmitter CSI, and is interested in finding conditions such that the capacity achieving codes can be constructed directly on the channel input alphabet.
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