• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

TOUSE: A Fair User Selection Mechanism Based on Dynamic Time Warping for MU-MIMO Networks

Vol. 11, No.9, September 30, 2017
10.3837/tiis.2017.09.012, Download Paper (Free):

Abstract

Multi-user Multiple-Input and Multiple-Output (MU-MIMO) has potential for prominently enhancing the capacity of wireless network by simultaneously transmitting to multiple users. User selection is an unavoidable problem which bottlenecks the gain of MU-MIMO to a great extent. Major state-of-the-art works are focusing on improving network throughput by using Channel State Information (CSI), however, the overhead of CSI feedback becomes unacceptable when the number of users is large. Some work does well in balancing tradeoff between complexity and achievable throughput but is lack of consideration of fairness. Current works universally ignore the rational utilizing of time resources, which may lead the improvements of network throughput to a standstill. In this paper, we propose TOUSE, a scalable and fair user selection scheme for MU-MIMO. The core design is dynamic-time- warping-based user selection mechanism for downlink MU-MIMO, which could make full use of concurrent transmitting time. TOUSE also presents a novel data-rate estimation method without any CSI feedback, providing supports for user selections. Simulation result shows that TOUSE significantly outperforms traditional contention-based user selection schemes in both throughput and fairness in an indoor condition.


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Cite this article

[IEEE Style]
Zhaoshu Tang, Zhenquan Qin, Ming Zhu, Jian Fang, Lei Wang and Honglian Ma, "TOUSE: A Fair User Selection Mechanism Based on Dynamic Time Warping for MU-MIMO Networks," KSII Transactions on Internet and Information Systems, vol. 11, no. 9, pp. 4398-4417, 2017. DOI: 10.3837/tiis.2017.09.012

[ACM Style]
Tang, Z., Qin, Z., Zhu, M., Fang, J., Wang, L., and Ma, H. 2017. TOUSE: A Fair User Selection Mechanism Based on Dynamic Time Warping for MU-MIMO Networks. KSII Transactions on Internet and Information Systems, 11, 9, (2017), 4398-4417. DOI: 10.3837/tiis.2017.09.012