Relay Architectures for 3GPP LTE-Advanced
<p/> <p>The Third Generation Partnership Project's Long Term Evolution-Advanced is considering relaying for cost-effective throughput enhancement and coverage extension. While analog repeaters have been used to enhance coverage in commercial cellular networks, the use of more sophis...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2009-01-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Online Access: | http://jwcn.eurasipjournals.com/content/2009/618787 |
| _version_ | 1818901219522904064 |
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| author | Peters StevenW Panah AliY Truong KienT Heath RobertW |
| author_facet | Peters StevenW Panah AliY Truong KienT Heath RobertW |
| author_sort | Peters StevenW |
| collection | DOAJ |
| description | <p/> <p>The Third Generation Partnership Project's Long Term Evolution-Advanced is considering relaying for cost-effective throughput enhancement and coverage extension. While analog repeaters have been used to enhance coverage in commercial cellular networks, the use of more sophisticated fixed relays is relatively new. The main challenge faced by relay deployments in cellular systems is overcoming the extra interference added by the presence of relays. Most prior work on relaying does not consider interference, however. This paper analyzes the performance of several emerging half-duplex relay strategies in interference-limited cellular systems: one-way, two-way, and shared relays. The performance of each strategy as a function of location, sectoring, and frequency reuse are compared with localized base station coordination. One-way relaying is shown to provide modest gains over single-hop cellular networks in some regimes. Shared relaying is shown to approach the gains of local base station coordination at reduced complexity, while two-way relaying further reduces complexity but only works well when the relay is close to the handset. Frequency reuse of one, where each sector uses the same spectrum, is shown to have the highest network throughput. Simulations with realistic channel models provide performance comparisons that reveal the importance of interference mitigation in multihop cellular networks.</p> |
| first_indexed | 2024-12-19T20:16:17Z |
| format | Article |
| id | doaj.art-06be94e22ae643af932b5a235e95df00 |
| institution | Directory Open Access Journal |
| issn | 1687-1472 1687-1499 |
| language | English |
| last_indexed | 2024-12-19T20:16:17Z |
| publishDate | 2009-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-06be94e22ae643af932b5a235e95df002022-12-21T20:07:10ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992009-01-0120091618787Relay Architectures for 3GPP LTE-AdvancedPeters StevenWPanah AliYTruong KienTHeath RobertW<p/> <p>The Third Generation Partnership Project's Long Term Evolution-Advanced is considering relaying for cost-effective throughput enhancement and coverage extension. While analog repeaters have been used to enhance coverage in commercial cellular networks, the use of more sophisticated fixed relays is relatively new. The main challenge faced by relay deployments in cellular systems is overcoming the extra interference added by the presence of relays. Most prior work on relaying does not consider interference, however. This paper analyzes the performance of several emerging half-duplex relay strategies in interference-limited cellular systems: one-way, two-way, and shared relays. The performance of each strategy as a function of location, sectoring, and frequency reuse are compared with localized base station coordination. One-way relaying is shown to provide modest gains over single-hop cellular networks in some regimes. Shared relaying is shown to approach the gains of local base station coordination at reduced complexity, while two-way relaying further reduces complexity but only works well when the relay is close to the handset. Frequency reuse of one, where each sector uses the same spectrum, is shown to have the highest network throughput. Simulations with realistic channel models provide performance comparisons that reveal the importance of interference mitigation in multihop cellular networks.</p>http://jwcn.eurasipjournals.com/content/2009/618787 |
| spellingShingle | Peters StevenW Panah AliY Truong KienT Heath RobertW Relay Architectures for 3GPP LTE-Advanced EURASIP Journal on Wireless Communications and Networking |
| title | Relay Architectures for 3GPP LTE-Advanced |
| title_full | Relay Architectures for 3GPP LTE-Advanced |
| title_fullStr | Relay Architectures for 3GPP LTE-Advanced |
| title_full_unstemmed | Relay Architectures for 3GPP LTE-Advanced |
| title_short | Relay Architectures for 3GPP LTE-Advanced |
| title_sort | relay architectures for 3gpp lte advanced |
| url | http://jwcn.eurasipjournals.com/content/2009/618787 |
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