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WOWMOM
2005
ACM
112views Multimedia» more  WOWMOM 2005»
15 years 3 months ago
A Hidden Environment Model for Constructing Indoor Radio Maps
Constructing indoor radio maps plays an important role in many services and applications such as wireless base station planning. In this paper, we propose a hybrid approach to con...
Zhe Xiang, Hangjin Zhang, Jian Huang, Song Song, K...
GLOBECOM
2009
IEEE
15 years 1 months ago
A Probabilistic Approach to Identifying the Number of Frequency Hoppers for Spectrum Sensing
Characterizing the number and type of transmitters occupying a given frequency band is a critical aspect of spectrum sensing specifically and cognitive radio generally. We present ...
Yuxing Han, Shaunak Joshi, Lillian Dai, Danijela C...
JCT
2008
103views more  JCT 2008»
14 years 9 months ago
A bijective proof of Jackson's formula for the number of factorizations of a cycle
Factorizations of the cyclic permutation (1 2 . . . N) into two permutations with respectively n and m cycles, or, equivalently, unicellular bicolored maps with N edges and n whit...
Gilles Schaeffer, Ekaterina A. Vassilieva
ADHOC
2006
100views more  ADHOC 2006»
14 years 9 months ago
Radio range adjustment for energy efficient wireless sensor networks
In wireless ad hoc sensor networks, energy use is in many cases the most important constraint since it corresponds directly to operational lifetime. Topology management schemes su...
Quang Gao, Keith J. Blow, David J. Holding, Ian W....
IJCM
2002
83views more  IJCM 2002»
14 years 9 months ago
A Radio Coloring of a Hypercube
A radio coloring of a graph G is an assignment of nonnegative integers to its nodes so that each pair of adjacent nodes have color numbers that differ by at least two, and any pai...
Ophir Frieder, Frank Harary, Peng-Jun Wan