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CSCW
2010
ACM
16 years 3 months ago
An empirical study of critical mass and online community survival
There is general consensus that critical mass at inception ensures the sustained success of online communities. However, no clear understanding of what constitutes such a 'cr...
Daphne R. Raban, Mihai Moldovan, Quentin Jones
155
Voted
CORR
2010
Springer
121views Education» more  CORR 2010»
15 years 6 months ago
Interference Channel with an Out-of-Band Relay
A Gaussian interference channel (IC) with a relay is considered. The relay is assumed to operate over an orthogonal band with respect to the underlying IC, and the overall system i...
Onur Sahin, Osvaldo Simeone, Elza Erkip
ICC
2007
IEEE
139views Communications» more  ICC 2007»
16 years 20 days ago
Throughput Maximization Transmission Control Scheme Using Precoding for MIMO Systems
— Multiple-input multiple-output (MIMO) systems that realize a high-speed data transmission with multiple antennas at both transmitter and receiver are drawing much attention. In...
Kenichi Kobayashi, Tomoaki Ohtsuki, Toshinobu Kane...
WIMOB
2008
IEEE
16 years 22 days ago
Using LED Lighting for Ubiquitous Indoor Wireless Networking
—Wireless networking is currently dominated by radio frequency (RF) techniques. However, the soon-to-be ubiquity of LED-based lighting motivated by significant energy savings pro...
Thomas D. C. Little, Peter Dib, Kandarp Shah, Nick...
CORR
2008
Springer
107views Education» more  CORR 2008»
15 years 6 months ago
Maximum Entropy Rate of Markov Sources for Systems With Non-regular Constraints
Using the concept of discrete noiseless channels, it was shown by Shannon in A Mathematical Theory of Communication that the ultimate performance of an encoder for a constrained sy...
Georg Böcherer, Valdemar Cardoso da Rocha Jr....