38 search results - page 7 / 8 » Multiuser MIMO Downlink Transmission Over Time-Varying Chann... |
CORR
2010
Springer
13 years 5 months ago
2010
Springer
This is the second part of a two-part paper on optimal design of limited feedback single-user and multiuser spatial multiplexing systems. The first part of the paper studies the si...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
In this paper, we consider a deadline constrained traffic and analyze the joint effects of packet queuing and adaptive modulation (AM) for packet transmission in MIMO systems. We p...
GLOBECOM
2007
IEEE
13 years 11 months ago
2007
IEEE
This paper addresses initial ranging (uplink synchronization and power control) for TDD OFDMA systems. Exploiting the channel knowledge from the downlink channel together with ini...
TSP
2012
12 years 13 days ago
2012
Abstract—We consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive...
TWC
2008
13 years 4 months ago
2008
1 . Cooperative transmission has emerged as an effective tool to deal with channel impairments. In this work we study the applicability of amplify-and-forward cooperative transmiss...