Feasibility of Interference Alignment for Reverse Duplex in MIMO Cellular Networks with One-side Base Cooperation 


Vol. 40,  No. 2, pp. 273-284, Feb.  2015


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  Abstract

The feasibility conditions of interference alignment (IA) are analyzed for reverse duplex systems, in which one cell operates as downlink (DL) while the other cell operates as uplink (UL) assuming one-sid base station (BS) cooperation. Under general multiple-input and multiple-output (MIMO) antenna configurations, a necessary condition and a sufficient condition for one-shot linear IA are established, i.e., linear IA without symbol or time extension. In several example networks, optimal sum degrees of freedom (DoF) is characterized by the derived necessary condition and sufficient condition. For some special class of networks, a sufficient condition is established in a more compact expression, which also yields the necessary and sufficient condition. Simulation results demonstrate that the proposed IA does not only achieve larger DoF but also significantly improves the sum rate in the practical signal-to-noise ratio (SNR) regime.

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  Cite this article

[IEEE Style]

K. Kim, S. Jeon, J. Yang, D. K. Kim, "Feasibility of Interference Alignment for Reverse Duplex in MIMO Cellular Networks with One-side Base Cooperation," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 2, pp. 273-284, 2015. DOI: .

[ACM Style]

Kiyeon Kim, Sang-Woon Jeon, Janghoon Yang, and Dong Ku Kim. 2015. Feasibility of Interference Alignment for Reverse Duplex in MIMO Cellular Networks with One-side Base Cooperation. The Journal of Korean Institute of Communications and Information Sciences, 40, 2, (2015), 273-284. DOI: .

[KICS Style]

Kiyeon Kim, Sang-Woon Jeon, Janghoon Yang, Dong Ku Kim, "Feasibility of Interference Alignment for Reverse Duplex in MIMO Cellular Networks with One-side Base Cooperation," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 2, pp. 273-284, 2. 2015.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880