Name
Title | ||
|---|---|---|
Blind separation of synchronous co-channel digital signals using an antenna array. I. Algorithms |
Abstract | ||
|---|---|---|
We propose a maximum-likelihood (ML) approach for separating and estimating multiple synchronous digital signals arriving at an antenna array at a cell site. The spatial response of the array is assumed to be known imprecisely or unknown. We exploit the finite alphabet property of digital signals to simultaneously estimate the array response and the symbol sequence for each signal. Uniqueness of the estimates is established for BPSK signals. We introduce a signal detection technique based on the finite alphabet property that is different from a standard linear combiner. Computationally efficient algorithms for both block and recursive estimation of the signals are presented. This new approach is applicable to an unknown array geometry and propagation environment, which is particularly useful In wireless communication systems. Simulation results demonstrate its promising performance |
Year | DOI | Venue |
|---|---|---|
1996 | 10.1109/78.502331 | IEEE Transactions on Signal Processing |
Keywords | Field | DocType |
antenna arrays,array signal processing,cellular radio,digital radio,digital signals,estimation theory,maximum likelihood detection,maximum likelihood estimation,phase shift keying,recursive estimation,antenna array,array response,blind separation,block estimation,computationally efficient algorithms,finite alphabet property,linear modulation formats,maximum-likelihood,multiple synchronous digital signals,propagation environment,recursive estimation,signal detection technique,spatial response,symbol sequence,synchronous co-channel digital signals,uniqueness,unknown array geometry,wireless communication systems | Digital radio,Signal processing,Detection theory,Digital signal,Sensor array,Communication channel,Algorithm,Antenna array,Mathematics,Phase-shift keying | Journal |
Volume | Issue | ISSN |
44 | 5 | 1053-587X |
Citations | PageRank | References |
140 | 13.90 | 12 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Talwar, S. | 1 | 140 | 13.90 |
| Mats Viberg | 2 | 1043 | 126.67 |
| Paulraj, A. | 3 | 140 | 13.90 |