63 search results - page 4 / 13 » Theoretical Bounds and System Design for Multipinhole SPECT |
GLOBECOM
2007
IEEE
14 years 2 months ago
2007
IEEE
— Carrier frequency offset (CFO) estimation is a key challenge in multicarrier systems such as OFDM. Often, this task is carried out using a preamble made of a number, say J, of ...
XSYM
2005
Springer
14 years 1 months ago
2005
Springer
In this paper, we designed efficient indexing structure for XML documents so that each basic XPath axis step is supported. The indexing structure is built on top of the B+ -tree wh...
FOCS
1994
IEEE
13 years 12 months ago
1994
IEEE
We establish a nonlinear lower bound for halfplane range searching over a group. Specifically, we show that summing up the weights of n (weighted) points within n halfplanes requir...
PLDI
2003
ACM
14 years 1 months ago
2003
ACM
This paper presents the design and implementation of a compiler algorithm that effectively optimizes programs for energy usage using dynamic voltage scaling (DVS). The algorithm ...
SIGMETRICS
2008
ACM
13 years 7 months ago
2008
ACM
In this paper, we consider hybrid peer-to-peer systems where users form an unstructured peer-to-peer network with the purpose of assisting a server in the distribution of data. We...