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ICASSP
2009
IEEE
10 years 5 months ago
A frequency hopping spread spectrum transmission scheme for uncoordinated cognitive radios
One of the major challenges to cognitive radios is the synchronization of distributed radios onto the same spectrum white spaces which vary in time and space. In this paper, we pr...
Xiaohua Li, Juite Hwu
SP
2008
IEEE
132views Security Privacy» more  SP 2008»
10 years 5 months ago
Jamming-resistant Key Establishment using Uncoordinated Frequency Hopping
We consider the following problem: how can two devices that do not share any secrets establish a shared secret key over a wireless radio channel in the presence of a communication...
Mario Strasser, Christina Pöpper, Srdjan Capk...
MASS
2010
133views Communications» more  MASS 2010»
9 years 8 months ago
USD-FH: Jamming-resistant wireless communication using Frequency Hopping with Uncoordinated Seed Disclosure
Abstract--Spread spectrum techniques (e.g., Frequency Hopping (FH), Direct Sequence Spread Spectrum (DSSS)) have been widely used for anti-jamming wireless communications. Such tec...
An Liu, Peng Ning, Huaiyu Dai, Yao Liu
JSAC
2011
215views more  JSAC 2011»
9 years 5 months ago
Opportunistic Spectrum Sharing Schemes for CDMA-Based Uplink MAC in Cognitive Radio Networks
—We consider a wireless cognitive radio network in which a set of secondary users (SUs) opportunistically utilize the wireless spectrum licensed to the primary users (PUs) to tra...
Xi Zhang, Hang Su
INFOCOM
1999
IEEE
10 years 2 months ago
Hop Reservation Multiple Access (HRMA) for Ad-Hoc Networks
A new multichannel MAC protocol called Hop-Reservation Multiple Access (HRMA) for wireless ad-hoc networks (multi-hop packet radio networks) is introduced, specified and analyzed. ...
Zhenyu Tang, J. J. Garcia-Luna-Aceves
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