A Reconfigurable Architecture for MIMO Square Root Decoder

  • Hongzhi Wang
  • Pierre Leray
  • Jacques Palicot
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3985)


An implementation of reconfigurable architecture for MIMO V-BLAST (Vertical Bell Laboratories Layered Space-Time) detection based on the square root algorithm is proposed in this paper. This reconfigurable square root decoder supports MIMO system with various number of antennas, different throughputs and different signal constellations. The decoder architecture is based on various number of operators CORDIC (COordinate Rotation DIgital Computer). The system prototype of the decoder reaches 600Mbit/s data rate on an Xilinx Virtex-II FPGA for a 2 antennas system with a QPSK signal constellation.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Foshini, G.J.: Layered space-time architecture for wireless communication in a fading environment when using multi-element antennas. Bell Labs Technical Journal, 41-57 (Autumn 1996)Google Scholar
  2. 2.
    Hu, J., Lu, W.: Open wireless architecture - the core to 4G mobile communications, Communication Technology Proceedings. In: ICCT 2003, April 9-11, vol. 2, pp. 1337–1342 (2003)Google Scholar
  3. 3.
    Andraka, R.: A Survey of CORDIC Algorithms for FPGAs. In: FPGA 1998, Proceedings of the 1998 ACM/SIGDA sixth international symposium on Field programmable gate arrays, Monterey, CA, February 22-24, pp. 191–200 (1998)Google Scholar
  4. 4.
    Hassibi, B.: An efficient square-root algorithm for BLAST,
  5. 5.
    Guo, Z., Nilsson, P.: A VLSI implementation of MIMO detection for future wireless communications. In: Proc. IEEE PIMRC 2003, vol. 3, pp. 2852–2856 (2003)Google Scholar
  6. 6.
    Rader, C.M.: VLSI Systolic Arrays for daptive Nulling. IEEE Sig. Proc. Mag. 13(4), 29–49 (1996)CrossRefGoogle Scholar
  7. 7.
    Palicot, J., Roland, C.: FFT: A basic function for a reconfigurable receiver. In: ICT, Papeete, Tahiti (February 2003)Google Scholar
  8. 8.

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Hongzhi Wang
    • 1
  • Pierre Leray
    • 1
  • Jacques Palicot
    • 1
  1. 1.IETR/SupelecCesson-sevigneFrance

Personalised recommendations