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On the need for dynamic downlink intercell.pdfOn the need for dynamic downlink intercell interference coordination for realistic Long Term Evolution deployments1,47 MBAdobe PDF Accés restringit

Citació: Gonzalez, D. [et al.]. On the need for dynamic downlink intercell interference coordination for realistic long term evolution deployments. "Wireless communications and mobile computing", 24 Febrer 2012.
Títol: On the need for dynamic downlink intercell interference coordination for realistic long term evolution deployments
Autor: González González, David Veure Producció científica UPC; García Lozano, Mario Veure Producció científica UPC; Ruiz Boqué, Sílvia Veure Producció científica UPC; Olmos Bonafé, Juan José Veure Producció científica UPC
Data: 24-feb-2012
Tipus de document: Article
Resum: Intercell interference is the main issue limiting the capacity of modern orthogonal frequency-division multiple access based cellular networks. Recently, extensive research work has been carried out in this field, and intercell interference coordination techniques have been recognized as key enablers of current (and future) cellular technologies. In this article, (i) a comprehensive survey of the most representative contributions is provided together with (ii) a generic methodology to measure their actual merit. The performance of several interference avoidance strategies has been evaluated both from system and user point of view in the context of a Long Term Evolution (LTE)-based network considering not only synthetic cellular scenarios but also realistic deployments. Our literature review indicates that there is a need for adaptive/operatorcustomizable low-complex intercell interference coordination (ICIC) schemes suitable for realistic LTE deployments. Results obtained by means of a comprehensive set of simulations corroborate and support this premise. In this article, it is shown that simultaneous gains in terms of spectral/energy efficiency and fairness can be achieved through dynamic mechanisms with respect to both classic hard reuse schemes and static ICIC techniques. Besides numerical results, a novel merit assessment methodology based on several weighted performance metrics is proposed. Our findings show that dynamic schemes outperform static techniques by around 20–35% in realistic deployments.
ISSN: 1530-8669
URI: http://hdl.handle.net/2117/16500
DOI: 10.1002/wcm.2191
Versió de l'editor: http://onlinelibrary.wiley.com/doi/10.1002/wcm.2191/pdf
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