Sciweavers

2067 search results - page 253 / 414
» Modeling and Simulation of Operating System Behavior
Sort
View
TCOM
2008
106views more  TCOM 2008»
14 years 10 months ago
Performance analysis on LDPC-Coded systems over quasi-static (MIMO) fading channels
In this paper, we derive closed form upper bounds on the error probability of low-density parity-check (LDPC) coded modulation schemes operating on quasi-static fading channels. Th...
Jingqiao Zhang, Heung-No Lee
ICST
2009
IEEE
15 years 4 months ago
Seasonal Variation in the Vulnerability Discovery Process
Vulnerability discovery rates need to be taken into account for evaluating security risks. Accurate projection of these rates is required to estimate the effort needed to develop ...
HyunChul Joh, Yashwant K. Malaiya
CORR
2008
Springer
87views Education» more  CORR 2008»
14 years 10 months ago
Indoor Channel Measurements and Communications System Design at 60 GHz
This paper presents a brief overview of several studies concerning the indoor wireless communications at 60 GHz performed by the IETR. The characterization and the modeling of the...
Lahatra Rakotondrainibe, Gheorghe Zaharia, Gha&ium...
ISCAS
2007
IEEE
179views Hardware» more  ISCAS 2007»
15 years 4 months ago
A Batteryless Vibration-based Energy Harvesting System for Ultra Low Power Ubiquitous Applications
—In this paper, we propose a vibration driven energy harvesting platform based on piezoelectric material. A new maximum power point tracking (MPPT) method for this platform is al...
Lu Chao, Chi-Ying Tsui, Wing-Hung Ki
ICC
2007
IEEE
125views Communications» more  ICC 2007»
15 years 1 months ago
Increasing Power Efficiency in Transmitter Diversity Systems under Error Performance Constraints
Motivated by combinatorial optimization theory, we propose an algorithmic power allocation method that minimizes the total transmitting power in transmitter diversity systems, prov...
Diomidis S. Michalopoulos, Athanasios S. Lioumpas,...