25 search results - page 2 / 5 » Limited feedback achieves the empirical capacity |
ICC
2009
IEEE
13 years 4 months ago
2009
IEEE
In this paper, we study power allocation (PA) in a single-relay OFDM system with limited feedback. We propose a PA scheme that uses a codebook of quantized PA vectors designed offl...
GLOBECOM
2007
IEEE
14 years 17 days ago
2007
IEEE
— Limited feedback systems that simultaneously transmit to multiple users are noise power limited at low SNR and interference power limited at high SNR. Specifically, there is a...
GLOBECOM
2009
IEEE
14 years 1 months ago
2009
IEEE
Abstract— This paper investigates the joint design and optimization of the power control and beamforming codebooks for the single-user multiple-input single-output (MISO) wireles...
CORR
2006
Springer
13 years 6 months ago
2006
Springer
The sphere-packing bound Esp(R) bounds the reliability function for fixed-length block-codes. For symmetric channels, it remains a valid bound even when strictly causal noiseless ...
ASIAMS
2009
IEEE
14 years 1 months ago
2009
IEEE
Cognitive radio has the ability to sense the environment and adapt its behavior to optimize communication features, such as quality of service in the presence of interference and ...