Results 181 to 190 of about 2,797,595 (206)

Noncoherent decision-feedback multiuser detection

IEEE Transactions on Communications, 2000
The problem of noncoherent multiuser detection for multipulse modulation over the Gaussian multiuser channel is studied. It is assumed that neither the energies nor the carrier phases of the signals of any of the users are available at the receiver. Previously, a post-decorrelative generalized likelihood ratio test (GLRT) based detector was proposed as
Mahesh K. Varanasi, Deepak Das
openaire   +1 more source

Iterative nonlinear MMSE multiuser detection

1999 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. ICASSP99 (Cat. No.99CH36258), 1999
This paper introduces the notion of nonlinear MMSE multiuser detection and shows that MMSE signal estimates followed by single user detectors yield MAP (or minimum probability of error) decisions for CDMA signals. Iterative solutions are proposed for nonlinear MMSE estimation.
Sridhar Gollamudi, Yih-Fang Huang
openaire   +1 more source

Nonlinear group-blind multiuser detection

IEEE Transactions on Communications, 2001
Summary: A nonlinear group-blind technique is developed for joint detection of some given users' data in a CDMA uplink environment with the presence of unknown interference. This method performs the so-called ``slowest-descent search'' over a likelihood function of the desired users, starting from the estimate closest to the unconstrained maximizer of ...
Predrag Spasojevic, Xiaodong Wang 0001, Anders Høst-Madsen   +2 more
openaire   +1 more source

On the probability of error in linear multiuser detection

IEEE Transactions on Information Theory, 2003
The problem of determining the bit-error probability in linear multiuser detection analytically is considered. A number of upper and lower bounds are developed, some of which are very tight, and issues of asymptotic behavior, optimality, and Gaussian approximation are explored.
Marat V. Burnashev, H. Vincent Poor
openaire   +2 more sources

Asymptotic multiuser efficiency for decision-feedback multiuser detection

Proceedings of ICC/SUPERCOMM '96 - International Conference on Communications, 2002
In this work, arbitrarily tight upper and lower bounds to the asymptotic multiuser efficiency (AME) are derived for K asynchronous users and decision-feedback multiuser detection. Because the multiple-access interference is noncausal, the precursor interference may be canceled out by making tentative decisions via conventional or decorrelated decisions,
openaire   +1 more source

Multiuser detection:

Annales Des Télécommunications, 1999
openaire   +1 more source

Space-time multiuser detection in multipath CDMA channels

IEEE Transactions on Signal Processing, 1999
H V Poor
exaly  

Multiuser Detection via Compressive Sensing

IEEE Communications Letters, 2012
Byonghyo Shim
exaly  

Tabu learning method for multiuser detection in CDMA systems

Neurocomputing, 2002
Xiaofeng Liao, Chunguang Li, Juebang Yu
exaly  

A gradient guided search algorithm for multiuser detection

IEEE Communications Letters, 2000
R S Blum
exaly