2 papers
cs.IT2008
Asymptotic Eigenvalue Moments of Wishart-Type Random Matrix Without Ergodicity in One Channel Realization
Chien-Hwa Hwang
Consider a random matrix whose variance profile is random. This random matrix is ergodic in one channel realization if, for each column and row, the empirical distribution of the s…
cs.IT2007
Spectrum Sensing in Wideband OFDM Cognitive Radios
Chien-Hwa Hwang, Shih-Chang Chen
In this paper, detection of the primary user (PU) signal in an orthogonal frequency division multiplexing (OFDM) based cognitive radio (CR) system is addressed. According to the pr…