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arXiv · 1501.01184

Interference Spins: Scheduling of Multiple Interfering Two-Way Wireless Links

Petar Popovski·Osvaldo Simeone·Jimmy J. Nielsen·Čedomir Stefanović
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Abstract

Two-way is a dominant mode of communication in wireless systems. Departing from the tradition to optimize each transmission direction separately, recent work has demonstrated that, for time-division duplex (TDD) systems, optimizing the schedule of the two transmission directions depending on traffic load and interference condition leads to performance gains. In this letter, a general network of multiple interfering two-way links is studied under the assumption of a balanced load in the two directions for each link. Using the notion of interference spin, we introduce an algebraic framework for the optimization of two-way scheduling, along with an efficient optimization algorithm that is based on the pruning of a properly defined topology graph and dynamic programming. Numerical results demonstrate multi-fold rate gains with respect to baseline solutions, especially for worst-case (5%-ile) rates.

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Petar Popovski, Osvaldo Simeone, Jimmy J. Nielsen, Čedomir Stefanović. 2015-02-04. Interference Spins: Scheduling of Multiple Interfering Two-Way Wireless Links. https://doi.org/10.1109/lcomm.2014.2387166

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