Name
Abstract | ||
|---|---|---|
Abstract—We propose blind multiuser detection schemes with antenna arrays, which is based on signal subspace estimation. They are a multichannel extension of the decorrelating and minimum mean-square-error detectors, and therefore they share their im- munity to near‐far effects. The blind scheme may be seen as an ex- tension of the results in of Wang and Poor. However, it is seen that compared with the latter results when spatial diversity is consid- ered, the proposed spatio-temporal detectors offer, with little atten- dant increase in computational complexity, a better performance. A blind adaptive implementation based on a new orthogonal PAST (projection approximation subspace tracking) algorithm, which is shown to be efficient for subspace tracking, is proposed. Also, we develop a blind estimation of spatial signature based on the orthog- onality between noise and signal subspaces. It is seen that the blind adaptive multiuser detection and blind spatio-temporal signature estimation can be integrated jointly. Index Terms—Antenna array, CDMA, multiuser detection, spatio-temporal signature, subspace tracking. |
Year | DOI | Venue |
|---|---|---|
2000 | 10.1109/26.843180 | IEEE Transactions on Communications |
Keywords | Field | DocType |
adaptive antenna arrays,adaptive estimation,adaptive signal detection,code division multiple access,computational complexity,decorrelation,diversity reception,fading channels,least mean squares methods,multipath channels,multiuser channels,tracking,AWGN,adaptive estimation,antenna arrays,blind spatio-temporal signature estimation,code-division multiple-access,computational complexity,decorrelating detector,fading channel,minimum mean-square-error detector,multipath channel,near-far effects immunity,noise subspace,orthogonal PAST algorithm,performance,projection approximation subspace tracking,signal subspace,signal subspace estimation,spatial diversity,spatial signature,spatio-temporal blind adaptive multiuser detection,subspace tracking,synchronous CDMA system | Antenna diversity,Decorrelation,Subspace topology,Computer science,Multiuser detection,Orthogonality,Electronic engineering,Blind equalization,Signal subspace,Computational complexity theory | Journal |
Volume | Issue | ISSN |
48 | 5 | 0090-6778 |
Citations | PageRank | References |
29 | 2.24 | 6 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| A. Chkeif | 1 | 84 | 6.16 |
| K. Abed-Meraim | 2 | 1962 | 164.99 |
| G. Kawas Kaleh | 3 | 289 | 30.73 |
| Yingbo Hua | 4 | 2614 | 250.12 |