Space-Time Water-Filling for Composite MIMO Fading Channels
<p/> <p>We analyze the ergodic capacity and channel outage probability for a composite MIMO channel model, which includes both fast fading and shadowing effects. The ergodic capacity and exact channel outage probability with space-time water-filling can be evaluated through numerical int...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2006-01-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Online Access: | http://jwcn.eurasipjournals.com/content/2006/016281 |
| _version_ | 1819202828759990272 |
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| author | Shen Zukang Heath Jr Robert W Andrews Jeffrey G Evans Brian L |
| author_facet | Shen Zukang Heath Jr Robert W Andrews Jeffrey G Evans Brian L |
| author_sort | Shen Zukang |
| collection | DOAJ |
| description | <p/> <p>We analyze the ergodic capacity and channel outage probability for a composite MIMO channel model, which includes both fast fading and shadowing effects. The ergodic capacity and exact channel outage probability with space-time water-filling can be evaluated through numerical integrations, which can be further simplified by using approximated empirical eigenvalue and maximal eigenvalue distribution of MIMO fading channels. We also compare the performance of space-time water-filling with spatial water-filling. For MIMO channels with small shadowing effects, spatial water-filling performs very close to space-time water-filling in terms of ergodic capacity. For MIMO channels with large shadowing effects, however, space-time water-filling achieves significantly higher capacity per antenna than spatial water-filling at low to moderate SNR regimes, but with a much higher channel outage probability. We show that the analytical capacity and outage probability results agree very well with those obtained from Monte Carlo simulations.</p> |
| first_indexed | 2024-12-23T04:10:14Z |
| format | Article |
| id | doaj.art-da293618854841459d5fcb06d4977753 |
| institution | Directory Open Access Journal |
| issn | 1687-1472 1687-1499 |
| language | English |
| last_indexed | 2024-12-23T04:10:14Z |
| publishDate | 2006-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-da293618854841459d5fcb06d49777532022-12-21T18:00:31ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992006-01-0120061016281Space-Time Water-Filling for Composite MIMO Fading ChannelsShen ZukangHeath Jr Robert WAndrews Jeffrey GEvans Brian L<p/> <p>We analyze the ergodic capacity and channel outage probability for a composite MIMO channel model, which includes both fast fading and shadowing effects. The ergodic capacity and exact channel outage probability with space-time water-filling can be evaluated through numerical integrations, which can be further simplified by using approximated empirical eigenvalue and maximal eigenvalue distribution of MIMO fading channels. We also compare the performance of space-time water-filling with spatial water-filling. For MIMO channels with small shadowing effects, spatial water-filling performs very close to space-time water-filling in terms of ergodic capacity. For MIMO channels with large shadowing effects, however, space-time water-filling achieves significantly higher capacity per antenna than spatial water-filling at low to moderate SNR regimes, but with a much higher channel outage probability. We show that the analytical capacity and outage probability results agree very well with those obtained from Monte Carlo simulations.</p>http://jwcn.eurasipjournals.com/content/2006/016281 |
| spellingShingle | Shen Zukang Heath Jr Robert W Andrews Jeffrey G Evans Brian L Space-Time Water-Filling for Composite MIMO Fading Channels EURASIP Journal on Wireless Communications and Networking |
| title | Space-Time Water-Filling for Composite MIMO Fading Channels |
| title_full | Space-Time Water-Filling for Composite MIMO Fading Channels |
| title_fullStr | Space-Time Water-Filling for Composite MIMO Fading Channels |
| title_full_unstemmed | Space-Time Water-Filling for Composite MIMO Fading Channels |
| title_short | Space-Time Water-Filling for Composite MIMO Fading Channels |
| title_sort | space time water filling for composite mimo fading channels |
| url | http://jwcn.eurasipjournals.com/content/2006/016281 |
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