RT Journal Article
ID 22221b9700f7ad9c
A1 Chunxiao, D.
A1 Fei, Y.
T1 PERFORMANCE SIMULATION ON LOW- COMPLEXITY LLL-BASED ALGORITHM FOR MIMO SYSTEM
JF Telecommunications and Radio Engineering
JO TRE
YR 2018
FD 2018-09-11
VO 77
IS 14
SP 1249
OP 1264
K1 LLL algorithm
K1 lattice reduction
K1 size reduction
K1 MIMO system
AB Lenstra-Lenstra-LovĂˇsz (LLL) is an effective receiving algorithm for multiple-input-multiple-output (MIMO) system. However, LLL algorithm possesses the polynomial complexity and its character of convergence performs poor. Reduce the algorithmic complexity and speed up the convergence is the key problem in optimizing LLL algorithm. In this paper, a variant named the Mingle LLL algorithm which combines both fix and round measurement in size reduction procedure is proposed. By leading in fix operation, the algorithmic procedure is changed and it will directly skip the size reduction procedure with extremely higher probability. As a direct consequence, according to the simulation results, the Mingle LLL algorithm owns a faster rate of convergence compared to original LLL algorithm. And its algorithmic complexity is at most one order lower than original LLL algorithm in real field.
PB Begell House
LK http://dl.begellhouse.com/journals/0632a9d54950b268,65ffeeb16fd38695,22221b9700f7ad9c.html