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MASCOTS
2007
13 years 9 months ago
Distance Reduction in Mobile Wireless Communication: Lower Bound Analysis and Practical Attainment
— The transmission energy required for a wireless communication increases superlinearly with the communication distance. In a mobile wireless network, nodal movement can be explo...
Yu Dong, Wing-Kai Hon, David K. Y. Yau, Jren-Chit ...
PODS
2006
ACM
95views Database» more  PODS 2006»
14 years 7 months ago
Randomized computations on large data sets: tight lower bounds
We study the randomized version of a computation model (introduced in [9, 10]) that restricts random access to external memory and internal memory space. Essentially, this model c...
André Hernich, Martin Grohe, Nicole Schweik...
WDAG
2005
Springer
85views Algorithms» more  WDAG 2005»
14 years 1 months ago
Time and Space Lower Bounds for Implementations Using k-CAS
This paper presents lower bounds on the time- and space-complexity of implementations that use the k compare-and-swap (k-CAS) synchronization primitives. We prove that the use of ...
Hagit Attiya, Danny Hendler
SIGECOM
2008
ACM
155views ECommerce» more  SIGECOM 2008»
13 years 7 months ago
Tight information-theoretic lower bounds for welfare maximization in combinatorial auctions
We provide tight information-theoretic lower bounds for the welfare maximization problem in combinatorial auctions. In this problem, the goal is to partition m items among k bidde...
Vahab S. Mirrokni, Michael Schapira, Jan Vondr&aac...
COCO
2007
Springer
107views Algorithms» more  COCO 2007»
14 years 1 months ago
A Linear Round Lower Bound for Lovasz-Schrijver SDP Relaxations of Vertex Cover
We study semidefinite programming relaxations of Vertex Cover arising from repeated applications of the LS+ “lift-and-project” method of Lovasz and Schrijver starting from th...
Grant Schoenebeck, Luca Trevisan, Madhur Tulsiani