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TSP
2010
13 years 3 months ago
Uplink synchronization in OFDMA spectrum-sharing systems
Spectrum sharing employs dynamic allocation of frequency resources for a more efficient use of the radio spectrum. Despite its appealing features, this technology inevitably compli...
Luca Sanguinetti, Michele Morelli, H. Vincent Poor
ALGORITHMICA
2010
112views more  ALGORITHMICA 2010»
13 years 9 months ago
On Sorting, Heaps, and Minimum Spanning Trees
Let A be a set of size m. Obtaining the first k m elements of A in ascending order can be done in optimal O(m + k log k) time. We present Incremental Quicksort (IQS), an algorith...
Gonzalo Navarro, Rodrigo Paredes
TCOM
2010
101views more  TCOM 2010»
13 years 3 months ago
Spectral efficient transmit diversity techniques without cyclic prefix for fading relay channels
Abstract--This paper proposes spectral efficient relayassisted transmit diversity techniques, i.e., space-time and space-frequency block codes (STBC/SFBC), for single carrier frequ...
Ui-Kun Kwon, Dae-Young Seol, Gi-Hong Im
ACSAC
2010
IEEE
13 years 21 days ago
A quantitative analysis of the insecurity of embedded network devices: results of a wide-area scan
We present a quantitative lower bound on the number of vulnerable embedded device on a global scale. Over the past year, we have systematically scanned large portions of the inter...
Ang Cui, Salvatore J. Stolfo
CONEXT
2009
ACM
13 years 10 months ago
Exploiting dynamicity in graph-based traffic analysis: techniques and applications
Network traffic can be represented by a Traffic Dispersion Graph (TDG) that contains an edge between two nodes that send a particular type of traffic (e.g., DNS) to one another. T...
Marios Iliofotou, Michalis Faloutsos, Michael Mitz...