2017
DOI: 10.1109/tsp.2016.2639458
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Optimal DoF Region for the Asymmetric Two-Pair MIMO Two-Way Relay Channel

Abstract: In this paper, we study the optimal degrees of freedom (DoF) region for the two-pair MIMO two-way relay channel (TWRC) with asymmetric antenna setting, where two pairs of users exchange information with the help of a common relay. Each user i is equipped with M i antennas, for i = 1, 2, 3, 4, and the relay is equipped with N antennas. First, we derive an outer bound of the DoF region by using the cutset theorem and the genie-message approach. Then, we propose a new transmission scheme to achieve the outer boun… Show more

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Cited by 11 publications
(4 citation statements)
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“…94 [345] full duplex relaying. as well as heterogeneous multi-tier network involving cellular and D2D full duplex communications [97].…”
Section: Communication Systemsmentioning
confidence: 99%
“…94 [345] full duplex relaying. as well as heterogeneous multi-tier network involving cellular and D2D full duplex communications [97].…”
Section: Communication Systemsmentioning
confidence: 99%
“…3) Full Duplex Systems: The performance of full duplex systems with simultaneous transmission and reception is invariably limited by the inherent self-interference (SI). This can be efficiently mitigated with the optimal asymmetric signaling transmission for in-band full-duplex capable transceivers with [49] or without [60] spectrum sharing, SISO [89] and MIMO [93], [345] full duplex relaying. as well as heterogeneous multi-tier network involving cellular and D2D full duplex communications [97].…”
Section: Communication Systemsmentioning
confidence: 99%
“…Recall that x 11 is drawn from a Gaussian distribution. If s is also Gaussian, then the capacity of the channel in (15) is given by…”
Section: B User-to-relay Transmissionmentioning
confidence: 99%