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EnglishWe propose a simple distributed radio resource allocation algorithm for an OFDMA cellular system, which aims at minimizing the overall transmitted power subject to a rate constraint for each user. In order to reduce the problem complexity we use a single modulation; simulations show that the resulting performance degradation is negligible when the number of users is high enough. Moreover, we propose a simple distributed heuristic that, by reducing the rate constraints, steers the multicell system towards an stable resource allocation. Results show that the proposed system exhibits a great robustness to the destructive effects of multiple access interference.
| Autori interni: | ||
| Autori: | MORETTI M; TODINI A | |
| Titolo: | A Resource Allocator for the Uplink of Multi-Cell OFDMA Systems | |
| Anno del prodotto: | 2007 | |
| Digital Object Identifier (DOI): | 10.1109/TWC.2007.06106 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
File in questo prodotto:
http://hdl.handle.net/11568/109106
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