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Summary: Papyrus: A Software Platform for Distributed Dynamic
Spectrum Sharing Using SDRs
Lei Yang, Zengbin Zhang, Wei Hou
, Ben Y. Zhao, Haitao Zheng
Department of Computer Science, University of California, Santa Barbara
Department of Electronic Engineering, Tsinghua University, Beijing, China
{leiyang,zengbin,ravenben,htzheng}@cs.ucsb.edu, weihou2008@gmail.com
ABSTRACT
Proliferation and innovation of wireless technologies require
significant amounts of radio spectrum. Recent policy re-
forms by the FCC are paving the way by freeing up spec-
trum for a new generation of frequency-agile wireless devices
based on software defined radios (SDRs). But despite recent
advances in SDR hardware, research on SDR MAC proto-
cols or applications requires an experimental platform for
managing physical access. We introduce Papyrus, a soft-
ware platform for wireless researchers to develop and exper-
iment dynamic spectrum systems using currently available
SDR hardware. Papyrus provides two fundamental build-
ing blocks at the physical layer: flexible non-contiguous fre-
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