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TWC
2008
84views more  TWC 2008»
15 years 4 months ago
Performance Analysis of OFDM Systems with Adaptive Sub Carrier Bandwidth
Orthogonal frequency division multiplexing based wireless systems are spectrally efficient, but they are vulnerable to inter carrier interference (ICI). In a wide area scenario, us...
Suvra Sekhar Das, Elisabeth de Carvalho, Ramjee Pr...
TWC
2008
113views more  TWC 2008»
15 years 4 months ago
PHY-layer Fairness in Amplify and Forward Cooperative Diversity Systems
We deal with the concept of physical-layer fairness in amplify and forward cooperative diversity systems, which reflects the need for equally allocating the consumed power among th...
Diomidis S. Michalopoulos, George K. Karagiannidis
CI
2004
99views more  CI 2004»
15 years 4 months ago
Purpose-Based Expert Finding in a Portfolio Management System
Most of the research inthe area of expert finding focuses on creating and maintaining centralized directories of experts' profiles, which users can search on demand. However, ...
Xiaolin Niu, Gordon I. McCalla, Julita Vassileva
JDM
1998
101views more  JDM 1998»
15 years 3 months ago
Fault-Tolerant Quorum Consensus Scheme for Replication Control in Mobile Distributed Database Systems
We propose a new replication control scheme for multiple-copy consistency in mobile distributed database systems. Replicating data at multiple sites could contribute to enhance th...
Siwoo Byun, Songchun Moon
PUC
2002
143views more  PUC 2002»
15 years 3 months ago
TRIP: A Low-Cost Vision-Based Location System for Ubiquitous Computing
: Sentient Computing provides computers with perception so that they can react and provide assistance to user activities. Physical spaces are made sentient when they are wired with...
Diego López de Ipiña, Paulo R. S. Me...