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ICASSP
2011
IEEE
12 years 11 months ago
2011
IEEE
In this paper, we study the eigenvalue-based spectrum sensing techniques for multiple-antenna cognitive radio networks. First, we study the extreme eigenvalue distributions of a c...
MOBISYS
2010
ACM
13 years 9 months ago
2010
ACM
We investigate if WiFi access can be used to augment 3G capacity in mobile environments. We first conduct a detailed study of 3G and WiFi access from moving vehicles, in three dif...
Publication
Efficient bandwidth allocation and low delays remain important goals, expecially in high-speed networks. Existing end-to-end congestion control schemes (such as TCP+AQM/RED) have s...
IAT
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract—Social conventions are useful self-sustaining protocols for groups to coordinate behavior without a centralized entity enforcing coordination. We perform an in-depth stu...
ICNS
2009
IEEE
14 years 2 months ago
2009
IEEE
—The majority of security protocols employ public key cryptography for authentication at least in the connection setup phase. However, verifying digital signatures is an expensiv...