Skip to main content
  • Research Article
  • Published:

Multiple ARQ Processes for MIMO Systems

Abstract

We propose a new automatic repeat request (ARQ) scheme for MIMO systems with multiple transmit and receive antennas. The substreams emitted from various transmit antennas encounter distinct propagation channels and thus have different error statistics. When per-antenna encoders are used, separating ARQ processes among the substreams results in a throughput improvement. Moreover, it facilitates the interference cancellation in certain MIMO techniques. Quantitative results from UMTS simulations demonstrate that the proposed multiple ARQ structure yields more than 30% gain in link throughput.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Haitao Zheng.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zheng, H., Lozano, A. & Haleem, M. Multiple ARQ Processes for MIMO Systems. EURASIP J. Adv. Signal Process. 2004, 479713 (2004). https://doi.org/10.1155/S1110865704311042

Download citation

  • Received:

  • Revised:

  • Published:

  • DOI: https://doi.org/10.1155/S1110865704311042

Keywords and phrases