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Computer Science > Information Theory

arXiv:1501.01184 (cs)
[Submitted on 6 Jan 2015 (v1), last revised 4 Feb 2015 (this version, v2)]

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

Authors: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.
Comments: Accepted for publication in IEEE Communications Letters
Subjects: Information Theory (cs.IT)
Cite as: arXiv:1501.01184 [cs.IT]
  (or arXiv:1501.01184v2 [cs.IT] for this version)
  https://doi.org/10.48550/arXiv.1501.01184
Related DOI: https://doi.org/10.1109/LCOMM.2014.2387166

Submission history

From: Jimmy Nielsen [view email]
[v1] Tue, 6 Jan 2015 14:11:36 UTC (1,208 KB)
[v2] Wed, 4 Feb 2015 13:28:56 UTC (1,208 KB)
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Petar Popovski
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Cedomir Stefanovic
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