Title :
Multiple Access With Energy Spreading Transform
Author_Institution :
Yonsei Univ., Seoul
fDate :
6/30/1905 12:00:00 AM
Abstract :
In this letter, the principle of iterative detection based on energy spreading transform (EST) introduced by Hwang and Li is applied to the multiuser-detection (MUD) problem. Different from turbo principle, EST enables iterative signal detection at the receiver without any bandwidth increase resulting from channel coding. It is shown by analysis as well as computer simulation that a significant performance gain in user separation can be obtained by employing ESTs consisting of different random permutations for different users.
Keywords :
channel coding; iterative methods; multiuser detection; radio receivers; channel coding; energy spreading transform; iterative signal detection; multiple access; multiuser-detection; receiver; Bandwidth; Channel coding; Computer simulation; Covariance matrix; Detectors; Feedback; Multiaccess communication; Multiuser detection; Performance analysis; Signal detection; Energy spreading transform (EST); iterative; multiuser detection;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2007.914794
