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JSAC
2008
254views more  JSAC 2008»
14 years 9 months ago
Cross-Layer Based Opportunistic MAC Protocols for QoS Provisionings Over Cognitive Radio Wireless Networks
We propose the cross-layer based opportunistic multi-channel medium access control (MAC) protocols, which integrate the spectrum sensing at physical (PHY) layer with the packet sch...
Hang Su, Xi Zhang
ISAAC
2005
Springer
111views Algorithms» more  ISAAC 2005»
15 years 3 months ago
Boosting Spectral Partitioning by Sampling and Iteration
A partition of a set of n items is a grouping of the items into k disjoint classes of equal size. Any partition can be modeled as a graph: the items become the vertices of the grap...
Joachim Giesen, Dieter Mitsche
UIC
2007
Springer
15 years 3 months ago
Maximizing Network Lifetime Under Reliability Constraints Using a Cross-Layer Design in Dense Wireless Sensor Networks
Abstract. Recent experimental studies have shown that radio links between low-power devices are extremely unreliable. In particular, the instability and unpredictability of low-pow...
Shan Guo Quan, Young Yong Kim
EDBT
2006
ACM
105views Database» more  EDBT 2006»
15 years 9 months ago
HASE: A Hybrid Approach to Selectivity Estimation for Conjunctive Predicates
Current methods for selectivity estimation fall into two broad categories, synopsis-based and sampling-based. Synopsis-based methods, such as histograms, incur minimal overhead at ...
Xiaohui Yu, Nick Koudas, Calisto Zuzarte
JSAC
2010
122views more  JSAC 2010»
14 years 8 months ago
A hybrid reservation/contention-based MAC for video streaming over wireless networks
—To reserve or not for bursty video traffic over wireless access networks has been a long-debated issue. For uplink transmissions in infrastructure-based wireless networks and p...
Ruonan Zhang, Rukhsana Ruby, Jianping Pan, Lin Cai...