A Family of Hybrid Space-Time Codes for MIMO Wireless Communications

作者：Bazdresch M^*; Cortez J; Longoria Gandara O; Parra Michel R

来源：Journal of Applied Research and Technology, 2012, 10(2): 122-142.

• Linear dispersion codes
• hybrid space-time codes
• correlated MIMO channel
• MIMO systems
• sorted QR decomposition

Hybrid MIMO space-time codes combine the benefits of spatial multiplexing with diversity gain to achieve both high spectral efficiency and link reliability. In this paper, we present a family of hybrid codes, known as LD STBC-VBLAST codes, along with a receiver architecture suitable for low-complexity hardware implementation. We show that, under Rayleigh fading, the performance of LD STBC-VBLAST codes is superior to other recently proposed hybrid codes. We also present a technique to derive, from a given propagation scenario, spatially correlated MIMO channel models adequate for space-time coding performance analysis. Using this technique, we evaluate the performance of LD STBC-VBLAST codes under several correlated channels.

• 出版日期2012-4