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TSP
2010
15 years 1 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»
15 years 6 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»
15 years 1 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
14 years 10 months 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
15 years 7 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...