Multiuser detection in code-division multiple-access communications
Multiuser detection strategies are derived and analyzed for several signal detection problems arising in Code-Division Multiple-Access channels. Modulation schemes which lend themselves to coherent and noncoherent demodulation are considered. For coherent communication, a suboptimum multistage detection strategy based on successive multiple-access interference rejection is proposed for both synchronous and asynchronous Gaussian CDMA channels. The resulting multistage detectors process the sufficient statistics via a nonlinear multistage decision algorithm. An efficient, fixed decoding delay implementation of the multistage detector for the asynchronous channel is obtained and is shown to require a computational and storage complexity per binary decision which is linear in the number of users
Varanasi, Mahesh Kumar. "Multiuser detection in code-division multiple-access communications." (1989) Diss., Rice University. https://hdl.handle.net/1911/16306.