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JCM
2008
13 years 5 months ago
2008
We compare four open-loop transmit diversity schemes in a coded Orthogonal Frequency Division Multiplexing (OFDM) system with four transmit antennas, namely cyclic shift diversity ...
JCM
2008
13 years 5 months ago
2008
The telecommunication industry has been through disruptive times, but data networking service revenue has continued to rise. The telecom industry is expected to continue to grow as...
JCM
2008
13 years 5 months ago
2008
This paper analyzes the influence of time-varying cyclic delay diversity (TV-CDD) on the channel fading correlation properties in orthogonal frequency division multiplexing (OFDM) ...
JCM
2008
13 years 5 months ago
2008
Abstract-- RF-ID systems are susceptible to frequency interference from other communciation systems particularly when the RF-ID tags transmit on a fixed carrier frequency. The RF-I...
JCM
2008
13 years 5 months ago
2008
In a large-scale sensor network individual sensors can be compromised to inject bogus sensing reports. While SEF can filter out the outfield false reports, it is incapable of detec...