Increasing downlink cellular throughput with limited network MIMO coordination
Single-user, multiuser, and network MIMO performance is evaluated for downlink cellular networks with 12 antennas per site, sectorization, universal frequency reuse, scheduled packet-data, and a dense population of stationary users. Compared to a single-user MIMO baseline system with 3 sectors per s...
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Veröffentlicht in: | IEEE transactions on wireless communications 2009-06, Vol.8 (6), p.2983-2989 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Single-user, multiuser, and network MIMO performance is evaluated for downlink cellular networks with 12 antennas per site, sectorization, universal frequency reuse, scheduled packet-data, and a dense population of stationary users. Compared to a single-user MIMO baseline system with 3 sectors per site, network MIMO coordination is found to increase throughput by a factor of 1.8 with intra-site coordination among antennas belonging to the same cell site. Intra-site coordination performs almost as well as a highly sectorized system with 12 sectors per site. Increasing the coordination cluster size from 1 to 7 sites increases the throughput gain factor to 2.5. |
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ISSN: | 1536-1276 1558-2248 |
DOI: | 10.1109/TWC.2009.080179 |