Z. Qin et Kc. Teh, Iterative multiuser detection with Gauss-Seidel soft detector as first stage for asynchronous coded CDMA, ELECTR LETT, 36(23), 2000, pp. 1939-1940
In the Letter. a new iterative detection and decoding structure for asynchr
onous convolutionally coded and turbo coded CDMA is proposed. The new schem
e is based on the combination of Gauss-Seidel soft detection and parallel i
nterference cancellation. The complexity of the new scheme is linear to the
number of users. It is shown that For heavily loaded system, near-optimal
performance can be obtained.