TY - JOUR
T1 - Complexity-efficient enumeration techniques for soft-input, soft-output sphere decoding
AU - Nikitopoulos, Konstantinos
AU - Zhang, Dan
AU - Lai, I. Wei
AU - Ascheid, Gerd
PY - 2010/4
Y1 - 2010/4
N2 - In this paper two complexity efficient soft spheredecoder modifications are proposed for computing the max-log LLR values in iterative MIMO systems, which avoid the costly, typically needed, full enumeration and sorting (FES) procedure during the tree traversal without compromising the max-log performance. It is shown that despite the resulting increase in the number of expanded nodes, they can be more computationally efficient than the typical soft sphere decoders by avoiding the unnecessary complexity of FES.
AB - In this paper two complexity efficient soft spheredecoder modifications are proposed for computing the max-log LLR values in iterative MIMO systems, which avoid the costly, typically needed, full enumeration and sorting (FES) procedure during the tree traversal without compromising the max-log performance. It is shown that despite the resulting increase in the number of expanded nodes, they can be more computationally efficient than the typical soft sphere decoders by avoiding the unnecessary complexity of FES.
KW - Iterative processing
KW - Multiple-input multiple-output
KW - Soft sphere decoding
UR - http://www.scopus.com/inward/record.url?scp=77950646726&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2010.04.092230
DO - 10.1109/LCOMM.2010.04.092230
M3 - 文章
AN - SCOPUS:77950646726
SN - 1089-7798
VL - 14
SP - 312
EP - 314
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 4
M1 - 5439349
ER -