Dynamic programming: deterministic and stochastic models
Dynamic programming: deterministic and stochastic models
Delay-optimal power and precoder adaptation for multi-stream MIMO systems
IEEE Transactions on Wireless Communications
Optimum linear joint transmit-receive processing for MIMO channels with QoS constraints
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Effective capacity: a wireless link model for support of quality of service
IEEE Transactions on Wireless Communications
Communication over fading channels with delay constraints
IEEE Transactions on Information Theory
Limited feedback unitary precoding for spatial multiplexing systems
IEEE Transactions on Information Theory
An Improved Beamforming Method Based on SLNR for Downlink Multi-user Multi-stream MIMO System
Wireless Personal Communications: An International Journal
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In this paper, we consider delay-optimal MIMO precoder and power allocation design for a MIMO Link in wireless fading channels. There are L data streams spatially multiplexed onto the MIMO link with heterogeneous packet arrivals and delay requirements. The transmitter is assumed to have knowledge of outdated channel state information (CSIT) as well as the joint queue state information (QSI) of the L buffers. Using static sorting of the L eigenchannels, we decompose the L- dimensional MDP into L independent 1-dimensional MDP and derived low complexity precoding and power control policies (with linear complexity) to minimize average delays of the L application streams.