NDLI: On the throughput of full-duplex MIMO in the multi-link case

Content Provider	IEEE Xplore Digital Library
Author	Nguyen, D.N. Krunz, M. Hanly, S.
Copyright Year	2014
Description	Author affiliation: Dept. of Eng., Macquarie Univ., Sydney, NSW, Australia (Nguyen, D.N.; Hanly, S.) \|\| Dept. of Electr. & Comput. Eng., Univ. of Arizona, Tucson, AZ, USA (Krunz, M.)
Abstract	We are concerned with the throughput of a full-duplex (FD) MIMO network. Unlike conventional half-duplex (HD) MIMO, two wireless devices of a bidirectional FD-MIMO link have freedom of selecting which antennas/RF-chains to transmit or receive before tuning their radiation patterns to maximize the link's throughput. The freedom in configuring the function of available RF-chains, resulting in various FD-MIMO transmission modes, is referred to as FD-MIMO freedom that is shown to significantly improve the spectral efficiency of a given link. For a given RF-chain/antenna selection of a set of FD-MIMO links, we end up with a non-convex throughput maximization problem of a heterogeneous MIMO network. We design both centralized (using the augmented Lagrange function) and distributed algorithm (using a hierarchical game and pricing) to solve the problem for its locally optimal solutions. Comparing the achieved throughput of the FD-MIMO network, averaged over all obtained locally optimal solutions, with that when FD-MIMO nodes choose to operate in an HD mode, we find the HD mode surprisingly outperforms the FD mode. This trend is also observed when exploring all possible communication modes of a small size FD-MIMO network.
Sponsorship	IEEE Inf. Theory Soc.
Starting Page	421
Ending Page	428
File Size	2753570
Page Count	8
File Format	PDF
ISBN	9783901882630
DOI	10.1109/WIOPT.2014.6850328
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-12
Publisher Place	Tunisia
Access Restriction	Subscribed
Rights Holder	IFIP
Subject Keyword	Spectral efficiency Interference Throughput Nash equilibrium MIMO nonconvex optimization beamforming Antennas full-duplex
Content Type	Text
Resource Type	Article

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