@inproceedings{yoon_li_liew_choudhury_rhee_tan_2013, title={QuickSense: Fast and energy-efficient channel sensing for dynamic spectrum access networks}, DOI={10.1109/infcom.2013.6567028}, abstractNote={Spectrum sensing, the task of discovering spectrum usage at a given location, is a fundamental problem in dynamic spectrum access networks. While sensing in narrow spectrum bands is well studied in previous work, wideband spectrum sensing is challenging since a wideband radio is generally too expensive and power consuming for mobile devices. Sequential scan, on the other hand, can be very slow if the wide spectrum band contains many narrow channels. In this paper, we propose an analog-filter based spectrum sensing technique, which is much faster than sequential scan and much cheaper than using a wideband radio. The key insight is that, if the sum of energy on a contiguous band is low, we can conclude that all channels in this band are clear with just one measurement. Based on this insight, we design an intelligent search algorithm to minimize the number of total measurements. We prove that the algorithm has the same asymptotic complexity as compressed sensing while our design is much simpler and easily implementable in the real hardware. We show the availability of our technique using hardware devices that include analog filters and analog energy detectors. Our extensive evaluation using real TV “white space” signals shows the effectiveness of our technique.}, booktitle={2013 proceedings ieee infocom}, author={Yoon, S. and Li, L. E. and Liew, S. C. and Choudhury, R. R. and Rhee, I. and Tan, K.}, year={2013}, pages={2247–2255} }
 @inproceedings{yoon_rhee_jung_daneshrad_kim_2011, title={Contrabass: Concurrent transmissions without coordination for ad hoc networks}, DOI={10.1109/infcom.2011.5934890}, abstractNote={A practical protocol jointly considering PHY and MAC for MIMO based concurrent transmissions in wireless ad hoc networks, called Contrabass, is presented. Concurrent transmissions refer to simultaneous transmissions by multiple nodes over the same carrier frequency within the same interference range. Contrabass is the first-to-date open-loop based concurrent transmission protocol which implements simultaneous channel training for concurrently transmitting links without any control message exchange. Its MAC protocol is designed for each active transmitter to independently decide to transmit with near optimal transmission probability. Contrabass maximizes the number of successful concurrent transmissions, thus achieving very high aggregate throughput, low delays and scalability even under dynamic environments. The design choices of Contrabass are deliberately made to enable practical implementation which is demonstrated through GNURadio implementation and experimentation.}, booktitle={2011 proceedings ieee infocom}, author={Yoon, S. and Rhee, I. and Jung, B. C. and Daneshrad, B. and Kim, J. H.}, year={2011}, pages={1134–1142} }
 @inproceedings{yoon_2010, title={Contrabass: Concurrent transmissions without coordination}, volume={40}, number={4}, booktitle={Computer Communication Review}, author={Yoon, S. R.}, year={2010}, pages={403–404} }