168 citations · 702 across the 19 of their papers we have counts for
7 papers · 2 filters
Gaussian Assumption: the Least Favorable but the Most Useful
Sangwoo Park, Erchin Serpedin, Khalid Qaraqe
This paper focuses on three contributions. First, a connection between the result, proposed by Stoica and Babu, and the recent information theoretic results, the worst additive noi…
A Unifying Variational Perspective on Some Fundamental Information Theoretic Inequalities
Sangwoo Park, Erchin Serpedin, Khalid Qaraqe
This paper proposes a unifying variational approach for proving and extending some fundamental information theoretic inequalities. Fundamental information theory results such as ma…
Random Subcarrier Allocation in OFDM-Based Cognitive Radio Networks
Sabit Ekin, Mohamed M. Abdallah, Khalid A. Qaraqe +1
This paper investigates the performance of an orthogonal frequency-division multiplexing (OFDM)-based cognitive radio (CR) spectrum sharing communication system that assumes random…
On the equivalence between Stein and de Bruijn identities
Sangwoo Park, Erchin Serpedin, Khalid Qaraqe
This paper focuses on proving the equivalence between Stein's identity and de Bruijn's identity. Given some conditions, we prove that Stein's identity is equivalent to de Bruijn's…
Time-varying Clock Offset Estimation in Two-way Timing Message Exchange in Wireless Sensor Networks Using Factor Graphs
Aitzaz Ahmad, Davide Zennaro, Erchin Serpedin +1
The problem of clock offset estimation in a two-way timing exchange regime is considered when the likelihood function of the observation time stamps is exponentially distributed. I…
A Factor Graph Approach to Clock Offset Estimation in Wireless Sensor Networks
Aitzaz Ahmad, Davide Zennaro, Erchin Serpedin +1
The problem of clock offset estimation in a two way timing message exchange regime is considered when the likelihood function of the observation time stamps is Gaussian, exponentia…