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SPARTA: Stable and Efficient Spectrum Access in Next Generation Dynamic Spectrum Networks
 

Summary: SPARTA: Stable and Efficient Spectrum Access in
Next Generation Dynamic Spectrum Networks
Lili Cao and Haitao Zheng
Department of Computer Science
University of California, Santa Barbara, CA 93106 U.S.A
Abstract--Future wireless infrastructure networks will dynam-
ically access spectrum for maximum utilization. However, the
fundamental challenge is how to provide stable spectrum access
required for most applications. Using dynamic spectrum access,
each node's spectrum usage is inherently unpredictable and
unstable. We propose to address this challenge by integrating
interference-aware statistical admission control with stability-
driven spectrum allocation. Specifically, we propose to proactively
regulate nodes' spectrum demand to allow efficient statistical
multiplexing while minimizing outages. Admitted nodes coordi-
nate to adapt instantaneous spectrum allocation to match time-
varying demand. While the optimization problem is NP-hard,
we develop computational-efficient algorithms with strong ana-
lytical guarantees. Experimental results show that the proposed
approach can provide stable spectrum usage while improving its

  

Source: Almeroth, Kevin C. - Department of Computer Science, University of California at Santa Barbara

 

Collections: Computer Technologies and Information Sciences