Simple ARQ mapping diversity and sphere decoding in MIMO wireless communications

  • Zhi Ding
  • Published 2005 in
    Proceedings. 2005 International Conference on…
We describe a new ARQ mechanism for effective packet retransmissions. We begin with a low-complexity method for enhancing and exploiting retransmission diversity by varying the symbol mapping for each retransmission of a packet, and combining retransmissions at the receiver with a joint ML demapper. A methodology is constructed to select mappings that… CONTINUE READING