Linear Precoder and Decoder Design for Bidirectional Full-Duplex MIMO OFDM Systems

Authors

O. Taghizadeh, V. Radhakrishnan, A. C. Cirik, S. Shojaee, R. Mathar, L. Lampe,

Abstract

        Abstract—In this paper we address the linear precoding and decoding design problem for a bidirectional orthogonal-frequency-division-multiplexing (OFDM) communication system, between two multiple-input-multiple-output (MIMO) full-duplex (FD) nodes. The effects of hardware distortions, leading to residual self-interference and inter-carrier leakage, are taken into account. In the first step, the operation of a FD MIMO OFDM transceiver is modeled under the impact of known hardware impairments. An alternating quadratic convex program (AltQCP) is then provided to obtain a minimum-mean-squared-error (MMSE) design for the defined system. The proposed design is then extended to maximize the system sum rate, applying the weighted-MMSE (WMMSE) method. The proposed AltQCP methods result in a monotonic improvement, leading to a necessary convergence to a stationary point. Finally, the performance of the defined system is evaluated under various system conditions, and in comparison to the other approaches in the literature. A significant gain is observed via the application of the proposed method as the hardware inaccuracy, and consequently inter-carrier leakage, increases.

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BibTEX Reference Entry 

@inproceedings{TaRaCiShMaLa17,
	author = {Omid Taghizadeh and Vimal Radhakrishnan and Ali Cagatay Cirik and Saeed Shojaee and Rudolf Mathar and Lutz Lampe},
	title = "Linear Precoder and Decoder Design for Bidirectional {Full-Duplex} {MIMO} {OFDM} Systems",
	booktitle = "2017 {IEEE} 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)",
	address = {Montreal, Canada},
	month = Oct,
	year = 2017,
	}

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