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Resource allocation for clustered network MIMO OFDMA systems
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Resource allocation for clustered network MIMO OFDMA systems
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| dc.contributor.author | Li, Jingya | |
| dc.contributor.author | Botella Mascarell, Carmen | |
| dc.contributor.author | Svensson, Tommy | |
| dc.date.accessioned | 2021-09-02T14:12:42Z | |
| dc.date.available | 2021-09-02T14:12:42Z | |
| dc.date.issued | 2012 | |
| dc.identifier.citation | Li, Jingya Botella Mascarell, Carmen Svensson, Tommy 2012 Resource allocation for clustered network MIMO OFDMA systems Eurasip Journal On Wireless Communications And Networking 2012 175 1 15 | |
| dc.identifier.uri | https://hdl.handle.net/10550/80205 | |
| dc.description.abstract | In this article, we address the resource allocation problem for the downlink of a large network multiple input multiple output orthogonal frequency division multiplexing system with 3-sector base stations. The system is statically divided into a number of disjoint clusters of sectors. A two-step resource allocation scheme is proposed involving the inter-cluster and the intra-cluster levels. As a first step or inter-cluster level, two cooperative frequency reuse approaches are designed to mitigate the inter-cluster interference. A user partition method is proposed to divide the users of each cluster into cluster-edge and cluster-center users. To balance the cell-edge and the cell-average performance, a fairness jug function is introduced to determine the frequency partition of the cooperative frequency reuse approaches. Then, as a second step or intra-cluster level, a utility-based joint scheduling and power allocation algorithm is proposed for each cluster, to maximize the sum utility of all users in the cluster under per-sector power constraints. Zero-forcing joint transmission is used across multiple sectors within the same cluster. Simulation results show that the proposed scheme can efficiently reduce the inter-cluster interference and provide considerable performance improvement in terms of both the cell-edge and cell-average user data rate. The proposed two-step resource allocation scheme can be implemented independently in each cluster without inter-cluster information exchange, which is an attractive property for practical systems, since it reduces both the network signaling overhead and the computational complexity. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Eurasip Journal On Wireless Communications And Networking, 2012, vol. 2012, num. 175, p. 1-15 | |
| dc.subject | Comunicació i tecnologia | |
| dc.subject | Telecomunicació | |
| dc.title | Resource allocation for clustered network MIMO OFDMA systems | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2021-09-02T14:12:43Z | |
| dc.identifier.doi | 10.1186/1687-1499-2012-175 | |
| dc.identifier.idgrec | 083980 | |
| dc.rights.accessRights | open access | es_ES |
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