Lattice sphere multiuser detection via compressive sensing

This paper presents a multiuser detection technique using compressive sensing (CS) where the entries data entries of finite-alphabet signals are considered as sparse data. Thus the proposed system is underdetermined, which pave the way for the usage of lattice sphere decoding (LSD) technique. In order to demonstrate the effectiveness of the proposed method, it is tested at different sparsity levels. We show that the proposed method provides substantial performance gain over the previous work.