What is the value of joint processing of pilots and data in block-fading channels?

Authors:
Nihar Jindal;Angel Lozano;Thomas L. Marzetta
Affiliations:
University of Minnesota, Minneapolis, MN;Universitat Pompeu Fabra, Barcelona, Spain;Bell Labs, Alcatel-Lucent, Murray Hill, NJ
Venue:
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 4
Year:
2009

Citing 10
Cited 1

Unitary space-time modulation for multiple-antenna communications in Rayleigh flat fading

IEEE Transactions on Information Theory
The effect upon channel capacity in wireless communications of perfect and imperfect knowledge of the channel

IEEE Transactions on Information Theory
Communication on the Grassmann manifold: a geometric approach to the noncoherent multiple-antenna channel

IEEE Transactions on Information Theory
Fading channels: how perfect need "perfect side information" be?

IEEE Transactions on Information Theory
How much training is needed in multiple-antenna wireless links?

IEEE Transactions on Information Theory
Capacity of multiple-antenna fading channels: spatial fading correlation, double scattering, and keyhole

IEEE Transactions on Information Theory
Capacity of a mobile multiple-antenna wireless link with isotropically random Rician fading

IEEE Transactions on Information Theory
High-SNR power offset in multiantenna communication

IEEE Transactions on Information Theory
How Good Is PSK for Peak-Limited Fading Channels in the Low-SNR Regime?

IEEE Transactions on Information Theory
Multiple-Antenna Signaling Over Fading Channels With Estimated Channel State Information: Capacity Analysis

IEEE Transactions on Information Theory

How much feedback is required for TDD multi-antenna broadcast channels with user selection?

EURASIP Journal on Advances in Signal Processing

Quantified Score

Hi-index	0.01

Visualization

Abstract

The spectral efficiency achievable with joint processing of pilot and data symbol observations is compared with that achievable through the conventional (separate) approach of first estimating the channel on the basis of the pilot symbols alone, and subsequently detecting the data symbols. Studied on the basis of a mutual information lower bound, joint processing is found to provide a nonnegligible advantage relative to separate processing, particularly for fast fading. It is shown that, regardless of the fading rate, only a very small number of pilot symbols (at most one per transmit antenna and per channel coherence interval) should be transmitted if joint processing is allowed.