On the Lambert-W function for constrained resource allocation in cooperative networks
<p>Abstract</p> <p>In cooperative networks, a variety of resource allocation problems can be formulated as constrained optimization with system-wide objective, e.g., maximizing the total system throughput, capacity or ergodic capacity, subject to constraints from individual users,...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2011-01-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Subjects: | |
| Online Access: | http://jwcn.eurasipjournals.com/content/2011/1/19 |
| _version_ | 1811318013583949824 |
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| author | Zaidi Abdellatif Brah Félix Louveaux Jérôme Vandendorpe Luc |
| author_facet | Zaidi Abdellatif Brah Félix Louveaux Jérôme Vandendorpe Luc |
| author_sort | Zaidi Abdellatif |
| collection | DOAJ |
| description | <p>Abstract</p> <p>In cooperative networks, a variety of resource allocation problems can be formulated as constrained optimization with system-wide objective, e.g., maximizing the total system throughput, capacity or ergodic capacity, subject to constraints from individual users, e.g., minimum data rate, transmit power limit, and from the system, e.g., power budget, total number of subcarriers, availability of the channel state information (CSI). Most constrained resource allocation schemes for cooperative networks require rigorous optimization processes using numerical methods since closed-form solutions are rarely found. In this article, we show that the Lambert-W function can be efficiently used to obtain closed-form solutions for some constrained resource allocation problems. Simulation results are provided to compare the performance of the proposed schemes with other resource allocation schemes.</p> |
| first_indexed | 2024-04-13T12:18:33Z |
| format | Article |
| id | doaj.art-867039e1c259471a992ad70766330a3d |
| institution | Directory Open Access Journal |
| issn | 1687-1472 1687-1499 |
| language | English |
| last_indexed | 2024-04-13T12:18:33Z |
| publishDate | 2011-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Wireless Communications and Networking |
| spelling | doaj.art-867039e1c259471a992ad70766330a3d2022-12-22T02:47:17ZengSpringerOpenEURASIP Journal on Wireless Communications and Networking1687-14721687-14992011-01-012011119On the Lambert-W function for constrained resource allocation in cooperative networksZaidi AbdellatifBrah FélixLouveaux JérômeVandendorpe Luc<p>Abstract</p> <p>In cooperative networks, a variety of resource allocation problems can be formulated as constrained optimization with system-wide objective, e.g., maximizing the total system throughput, capacity or ergodic capacity, subject to constraints from individual users, e.g., minimum data rate, transmit power limit, and from the system, e.g., power budget, total number of subcarriers, availability of the channel state information (CSI). Most constrained resource allocation schemes for cooperative networks require rigorous optimization processes using numerical methods since closed-form solutions are rarely found. In this article, we show that the Lambert-W function can be efficiently used to obtain closed-form solutions for some constrained resource allocation problems. Simulation results are provided to compare the performance of the proposed schemes with other resource allocation schemes.</p>http://jwcn.eurasipjournals.com/content/2011/1/19Resource allocationLambert-W functioncooperative networksQoS |
| spellingShingle | Zaidi Abdellatif Brah Félix Louveaux Jérôme Vandendorpe Luc On the Lambert-W function for constrained resource allocation in cooperative networks EURASIP Journal on Wireless Communications and Networking Resource allocation Lambert-W function cooperative networks QoS |
| title | On the Lambert-W function for constrained resource allocation in cooperative networks |
| title_full | On the Lambert-W function for constrained resource allocation in cooperative networks |
| title_fullStr | On the Lambert-W function for constrained resource allocation in cooperative networks |
| title_full_unstemmed | On the Lambert-W function for constrained resource allocation in cooperative networks |
| title_short | On the Lambert-W function for constrained resource allocation in cooperative networks |
| title_sort | on the lambert w function for constrained resource allocation in cooperative networks |
| topic | Resource allocation Lambert-W function cooperative networks QoS |
| url | http://jwcn.eurasipjournals.com/content/2011/1/19 |
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