Multi-stream sum-rate-maximizing interference alignment under sparsity constraints. - Ahmed G. Helmy; Ahmad Gomaa; Ahmadreza Hedayat; Naofal Al-Dhahir (GLOBECOM, 2013)

A Novel Spectrally-Efficient Scheme for Physical Layer Network Coding. - Ahmed G. Helmy; Tamer Khattab; Mazen O. Hasna (CoRR, 2014)

Robust weighted-sum-rate based multi-stream transmission for the MIMO interference channel. - Ahmed G. Helmy; Ahmadreza Hedayat; Naofal Al-Dhahir (WCNC, 2015)

Robust Weighted Sum-Rate Maximization for the Multi-Stream MIMO Interference Channel With Sparse Equalization. - Ahmed G. Helmy; Ahmadreza Hedayat; Naofal Al-Dhahir (IEEE Trans. Commun., 2015)

Performance and Compensation of I/Q Imbalance in Differential STBC-OFDM. - Lei Chen; Ahmed G. Helmy; Guangrong Yue; Shaoqian Li; Naofal Al-Dhahir (GLOBECOM, 2016)

Enhanced-Reliability Cyclic Generalized Spatial-and-Temporal Modulation. - Ahmed G. Helmy; Marco Di Renzo; Naofal Al-Dhahir (IEEE Commun. Lett., 2016)

Spatial Modulation for Improved Performance of Next-Generation WLAN. - Ahmed G. Helmy; Shahrnaz Azizi; Thomas J. Kenney; Naofal Al-Dhahir (WCNC, 2017)

On the Robustness of Spatial Modulation to I/Q Imbalance. - Ahmed G. Helmy; Marco Di Renzo; Naofal Al-Dhahir (IEEE Commun. Lett., 2017)

Performance Analysis and Compensation of Joint TX/RX I/Q Imbalance in Differential STBC-OFDM. - Lei Chen; Ahmed G. Helmy; Guangrong Yue; Shaoqian Li; Naofal Al-Dhahir (IEEE Trans. Veh. Technol., 2017)

Differential Spatially Modulated Space-Time Block Codes With Temporal Permutations. - Ahmed G. Helmy; Marco Di Renzo; Naofal Al-Dhahir (IEEE Trans. Veh. Technol., 2017)