TY - JOUR
T1 - A new fast generalized sphere decoding algorithm in MIMO systems
AU - Liu, Chao
AU - Yang, Zongkai
AU - He, Jianhua
PY - 2005
Y1 - 2005
N2 - A new generalized sphere decoding algorithm is proposed for underdetermined MIMO systems with fewer receive antennas N than transmit antennas M. The proposed algorithm is significantly faster than the existing generalized sphere decoding algorithms. The basic idea is to partition the transmitted signal vector into two subvectors x and x with N - 1 and M - N + 1 elements respectively. After some simple transformations, an outer layer Sphere Decoder (SD) can be used to choose proper x and then use an inner layer SD to decide x, thus the whole transmitted signal vector is obtained. Simulation results show that Double Layer Sphere Decoding (DLSD) has far less complexity than the existing Generalized Sphere Decoding (GSDs).
AB - A new generalized sphere decoding algorithm is proposed for underdetermined MIMO systems with fewer receive antennas N than transmit antennas M. The proposed algorithm is significantly faster than the existing generalized sphere decoding algorithms. The basic idea is to partition the transmitted signal vector into two subvectors x and x with N - 1 and M - N + 1 elements respectively. After some simple transformations, an outer layer Sphere Decoder (SD) can be used to choose proper x and then use an inner layer SD to decide x, thus the whole transmitted signal vector is obtained. Simulation results show that Double Layer Sphere Decoding (DLSD) has far less complexity than the existing Generalized Sphere Decoding (GSDs).
KW - double layer sphere decoding algorithm
KW - generalized sphere decoding algorithm
KW - MIMO
KW - wireless communications
UR - http://www.scopus.com/inward/record.url?scp=23044516211&partnerID=8YFLogxK
UR - http://caod.oriprobe.com/articles/9547557/A_New_Fast_Generalized_Sphere_Decoding_Algorithm_in_MIMO_Systems.htm
M3 - Article
AN - SCOPUS:23044516211
SN - 1009-5896
VL - 27
SP - 1114
EP - 1117
JO - Dianzi Yu Xinxi Xuebao [Journal of Electronics and Information Technology]
JF - Dianzi Yu Xinxi Xuebao [Journal of Electronics and Information Technology]
IS - 7
ER -