TY - GEN
T1 - Channel-adaptive coding for coarsely quantized MIMO systems
AU - Lang, Thomas
AU - Mezghani, Amine
AU - Nossek, Josef A.
PY - 2010
Y1 - 2010
N2 - We present iterative algorithms which efficiently compute an optimized subset of equiprobable input symbols that achieves near-capacity on a large asymmetric discrete memoryless channel (DMC). The optimized subset defines a delay-free channel-adapted inner code which can be combined with a standard code. The introduction of a dense data structure renders it possible to apply channel-adaptive coding to 2-bit quantized MIMO systems, which exhibit a very large output set. The coding approach is shown to be robust to imperfect channel state information (CSI). Finally, we present a binary index switching algorithm that minimizes the BER by optimizing the mapping from code bits to input symbols.
AB - We present iterative algorithms which efficiently compute an optimized subset of equiprobable input symbols that achieves near-capacity on a large asymmetric discrete memoryless channel (DMC). The optimized subset defines a delay-free channel-adapted inner code which can be combined with a standard code. The introduction of a dense data structure renders it possible to apply channel-adaptive coding to 2-bit quantized MIMO systems, which exhibit a very large output set. The coding approach is shown to be robust to imperfect channel state information (CSI). Finally, we present a binary index switching algorithm that minimizes the BER by optimizing the mapping from code bits to input symbols.
UR - http://www.scopus.com/inward/record.url?scp=77953068854&partnerID=8YFLogxK
U2 - 10.1109/WSA.2010.5456441
DO - 10.1109/WSA.2010.5456441
M3 - Conference contribution
AN - SCOPUS:77953068854
SN - 9781424460700
T3 - 2010 International ITG Workshop on Smart Antennas, WSA 2010
SP - 20
EP - 27
BT - 2010 International ITG Workshop on Smart Antennas, WSA 2010
T2 - 2010 International ITG Workshop on Smart Antennas, WSA 2010
Y2 - 23 February 2010 through 24 February 2010
ER -