Subband Array Implementations for Space-Time Adaptive Processing
<p/> <p>Intersymbol interference (ISI) and cochannel interference (CCI) are two primary sources of signal impairment in mobile communications. In order to suppress both ISI and CCI, space-time adaptive processing (STAP) has been shown to be effective in performing spatio-temporal equaliz...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2005-01-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/ASP.2005.99 |
| _version_ | 1819211919826878464 |
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| author | Yang Kehu Zhang Yimin Amin Moeness G |
| author_facet | Yang Kehu Zhang Yimin Amin Moeness G |
| author_sort | Yang Kehu |
| collection | DOAJ |
| description | <p/> <p>Intersymbol interference (ISI) and cochannel interference (CCI) are two primary sources of signal impairment in mobile communications. In order to suppress both ISI and CCI, space-time adaptive processing (STAP) has been shown to be effective in performing spatio-temporal equalization, leading to increased communication capacity as well as improved quality of service. The high complexity and slow convergence, however, often impede practical STAP implementations. Several subband array structures have been proposed as alternatives to STAP. These structures provide optimal or suboptimal steady-state performance with reduced implementation complexity and improved convergence performance. The purpose of this paper is to investigate the steady-state performance of subband arrays with centralized and localized feedback schemes, using different decimation rates. Analytical expressions of the minimum mean-square error (MMSE) performance are derived. The analysis assumes discrete Fourier transform (DFT)-based subband arrays and considers both unconstrained and constrained weight adaptations.</p> |
| first_indexed | 2024-12-23T06:34:44Z |
| format | Article |
| id | doaj.art-c9b9688256d843ebb832e49ca05f21fc |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-12-23T06:34:44Z |
| publishDate | 2005-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-c9b9688256d843ebb832e49ca05f21fc2022-12-21T17:56:51ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802005-01-0120051640351Subband Array Implementations for Space-Time Adaptive ProcessingYang KehuZhang YiminAmin Moeness G<p/> <p>Intersymbol interference (ISI) and cochannel interference (CCI) are two primary sources of signal impairment in mobile communications. In order to suppress both ISI and CCI, space-time adaptive processing (STAP) has been shown to be effective in performing spatio-temporal equalization, leading to increased communication capacity as well as improved quality of service. The high complexity and slow convergence, however, often impede practical STAP implementations. Several subband array structures have been proposed as alternatives to STAP. These structures provide optimal or suboptimal steady-state performance with reduced implementation complexity and improved convergence performance. The purpose of this paper is to investigate the steady-state performance of subband arrays with centralized and localized feedback schemes, using different decimation rates. Analytical expressions of the minimum mean-square error (MMSE) performance are derived. The analysis assumes discrete Fourier transform (DFT)-based subband arrays and considers both unconstrained and constrained weight adaptations.</p>http://dx.doi.org/10.1155/ASP.2005.99space-time adaptive processingsubband arrayarray processingmobile communicationsintersymbol interferencecochannel interference |
| spellingShingle | Yang Kehu Zhang Yimin Amin Moeness G Subband Array Implementations for Space-Time Adaptive Processing EURASIP Journal on Advances in Signal Processing space-time adaptive processing subband array array processing mobile communications intersymbol interference cochannel interference |
| title | Subband Array Implementations for Space-Time Adaptive Processing |
| title_full | Subband Array Implementations for Space-Time Adaptive Processing |
| title_fullStr | Subband Array Implementations for Space-Time Adaptive Processing |
| title_full_unstemmed | Subband Array Implementations for Space-Time Adaptive Processing |
| title_short | Subband Array Implementations for Space-Time Adaptive Processing |
| title_sort | subband array implementations for space time adaptive processing |
| topic | space-time adaptive processing subband array array processing mobile communications intersymbol interference cochannel interference |
| url | http://dx.doi.org/10.1155/ASP.2005.99 |
| work_keys_str_mv | AT yangkehu subbandarrayimplementationsforspacetimeadaptiveprocessing AT zhangyimin subbandarrayimplementationsforspacetimeadaptiveprocessing AT aminmoenessg subbandarrayimplementationsforspacetimeadaptiveprocessing |