標題: A Low-Complexity Uplink Multiuser Scheduling for Virtual MIMO Systems
作者: Chang, Hsien-Wen
Wang, Li-Chun
電機學院
College of Electrical and Computer Engineering
關鍵字: Multiple-input multiple-output (MIMO);proportional fairness;spatial multiplexing;virtual MIMO
公開日期: Jan-2016
摘要: Multiple-input-multiple-output (MIMO) antenna systems can provide the spatial multiplexing gain to enhance spectrum efficiency, but they are hampered by the fact that the number of antennas in a hand-held mobile device is smaller than that of a base station. To overcome this issue, the virtual MIMO techniques arrange a group of single-antenna mobile users to become a virtual multiple-antenna entity. However, existing virtual MIMO techniques are either applicable only to a small group or computationally too complex. We propose a low-complexity user scheduling for virtual MIMO with a flexible group size. In comparison with existing approaches, our results show that the proposed user scheduling for virtual MIMO can reduce the floating operations by 96% in the case of a 6 x 6 virtual MIMO system while maintaining the same throughput and fairness performance.
URI: http://dx.doi.org/10.1109/TVT.2015.2394368
http://hdl.handle.net/11536/133684
ISSN: 0018-9545
DOI: 10.1109/TVT.2015.2394368
期刊: IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
Volume: 65
Issue: 1
起始頁: 463
結束頁: 466
Appears in Collections:Articles