25 citations · 25 across the 2 of their papers we have counts for
5 papers
Spectrum Sensing in Low SNR Regime via Stochastic Resonance
Kun Zheng, Husheng Li, Seddik M. Djouadi +1
Spectrum sensing is essential in cognitive radio to enable dynamic spectrum access. In many scenarios, primary user signal must be detected reliably in low signal-to-noise ratio (S…
Performance Analysis of Iterative Channel Estimation and Multiuser Detection in Multipath DS-CDMA Channels
Husheng Li, Sharon M. Betz, H. Vincent Poor
This paper examines the performance of decision feedback based iterative channel estimation and multiuser detection in channel coded aperiodic DS-CDMA systems operating over multip…
Analysis of Second-order Statistics Based Semi-blind Channel Estimation in CDMA Channels
Husheng Li, H. Vincent Poor
The performance of second order statistics (SOS) based semi-blind channel estimation in long-code DS-CDMA systems is analyzed. The covariance matrix of SOS estimates is obtained in…
Low Complexity Joint Iterative Equalization and Multiuser Detection in Dispersive DS-CDMA Channels
Husheng Li, H. V. Poor
Communications in dispersive direct-sequence code-division multiple-access (DS-CDMA) channels suffer from intersymbol and multiple-access interference, which can significantly impa…
Impact of Channel Estimation Errors on Multiuser Detection via the Replica Method
Husheng Li, H. V. Poor
For practical wireless DS-CDMA systems, channel estimation is imperfect due to noise and interference. In this paper, the impact of channel estimation errors on multiuser detection…