Power Allocation for Cognitive Radios Based on Primary User Activity in an OFDM System. - Ziaul Hasan; Ekram Hossain 001; Charles L. Despins; Vijay K. Bhargava (GLOBECOM, 2008)

Energy-efficient power allocation in OFDM-based cognitive radio systems: A risk-return model. - Ziaul Hasan; Gaurav Bansal; Ekram Hossain 001; Vijay K. Bhargava (IEEE Trans. Wirel. Commun., 2009)

Subcarrier selection and power allocation for amplify-and-forward relaying over OFDM links. - Olivier Duval; Ziaul Hasan; Ekram Hossain 001; François Gagnon; Vijay K. Bhargava (IEEE Trans. Wirel. Commun., 2010)

Resource Allocation for Multiuser OFDMA-Based Amplify-and-Forward Relay Networks with Selective Relaying. - Ziaul Hasan; Ekram Hossain 001; Vijay K. Bhargava (ICC, 2011)

Green Cellular Networks: A Survey, Some Research Issues and Challenges. - Ziaul Hasan; Hamidreza Boostanimehr; Vijay K. Bhargava (IEEE Commun. Surv. Tutorials, 2011)

Cooperative communication and relay selection under asymmetric information. - Ziaul Hasan; Abbas Jamalipour; Vijay K. Bhargava (WCNC, 2012)

Relay Selection for OFDM Wireless Systems under Asymmetric Information: A Contract-Theory Based Approach. - Ziaul Hasan; Vijay K. Bhargava (IEEE Trans. Wirel. Commun., 2013)