Name
Title | ||
|---|---|---|
Spatial signature estimation in cyclic cumulant domain and multiuser signal separation in uplink SDMA. |
Abstract | ||
|---|---|---|
In smart antenna systems (SAS), the most compelling research work is the space-division multiple-access (SDMA) which includes uplink source separation and downlink selective transmission. We propose a subspace-based spatial signature estimation algorithm of cochannel multiuser signals by jointly exploiting cumulant and cyclostationarity, and apply it to multiuser signal copy in uplink SDMA. Our method constructs a new matrix called the spatial signature matrix (SS matrix), and estimates the multiuser spatial signature through the eigen-decomposition of the SS matrix. Based on estimated spatial signature, a spatial filter bank is designed for cochannel multiuser waveform estimation. Computer simulations show that the spatial response of the filter bank can be used to find the direction-of-arrival (DOA) of the correlated multiuser signals. |
Year | DOI | Venue |
|---|---|---|
1999 | 10.1109/ICASSP.1999.761359 | ICASSP |
Keywords | Field | DocType |
multiuser spatial signature,spatial response,multiuser signal separation,estimated spatial signature,uplink sdma,cochannel multiuser signal,cyclic cumulant domain,cochannel multiuser waveform estimation,subspace-based spatial signature estimation,ss matrix,spatial signature matrix,correlated multiuser signal,spatial filter bank,eigen decomposition,computer simulation,base stations,downlink,cumulant,direction of arrival,spatial filtering,synthetic aperture sonar,smart antenna,fading,filter bank | Pattern recognition,Subspace topology,Signature matrix,Computer science,Filter bank,Smart antenna,Artificial intelligence,Space-division multiple access,Source separation,Telecommunications link,Spatial filter | Conference |
ISSN | ISBN | Citations |
1520-6149 | 0-7803-5041-3 | 2 |
PageRank | References | Authors |
0.37 | 6 | 2 |