Ali Ghrayeb

Karama Hamdi, Mazen O. Hasna, Ali Ghrayeb, Khaled Ben Letaief: Priority-Based Zero-Forcing in Spectrum Sharing Cognitive Systems. IEEE Communications Letters 17(2): 313-316 (2013)

Mohammad Faisal Uddin, Chadi Assi, Ali Ghrayeb: Joint Relay Assignment and Power Allocation for Multicast Cooperative Networks. IEEE Communications Letters 16(3): 368-371 (2012)

Xiang Nian Zeng, Ali Ghrayeb, Mazen Omar Hasna: Joint Optimal Threshold-Based Relaying and ML Detection in Cooperative Networks. IEEE Communications Letters 16(6): 773-776 (2012)

Zied Bouida, Kamel Tourki, Ali Ghrayeb, Khalid A. Qaraqe, Mohamed-Slim Alouini: Power Adaptation for Joint Switched Diversity and Adaptive Modulation Schemes in Spectrum Sharing Systems. IEEE Communications Letters 16(9): 1482-1485 (2012)

Sinh Le Hong Nguyen, Ali Ghrayeb, Mazen Omar Hasna: Iterative Compressive Estimation and Decoding for Network-Channel-Coded Two-Way Relay Sparse ISI Channels. IEEE Communications Letters 16(12): 1992-1995 (2012)

Xiang Nian Zeng, Ali Ghrayeb, Mazen Omar Hasna: Joint Optimal Threshold-Based Relaying and ML Detection in Network-Coded Two-Way Relay Channels. IEEE Transactions on Communications 60(9): 2657-2667 (2012)

Xuehua Zhang, Mazen Omar Hasna, Ali Ghrayeb: Performance Analysis of Relay Assignment Schemes for Cooperative Networks with Multiple Source-Destination Pairs. IEEE Transactions on Wireless Communications 11(1): 166-177 (2012)

Farrokh Etezadi, Keyvan Zarifi, Ali Ghrayeb, Sofiène Affes: Decentralized Relay Selection Schemes in Uniformly Distributed Wireless Sensor Networks. IEEE Transactions on Wireless Communications 11(3): 938-951 (2012)

Ali Afana, Vahid Asghari, Ali Ghrayeb, Sofiène Affes: Enhancing the performance of spectrum-sharing systems via collaborative distributed beamforming and AF relaying. GLOBECOM 2012: 1314-1319

Mohammad Faisal Uddin, Chadi Assi, Ali Ghrayeb: Joint optimal relay selection and power allocation in multicast cooperative networks. ICC 2012: 5086-5091

Bahattin Karakaya, Mazen Omar Hasna, Murat Uysal, Tolga M. Duman, Ali Ghrayeb: Relay selection for cooperative underwater acoustic communication systems. ICT 2012: 1-6

Vahid Asghari, Sofiène Affes, Ali Ghrayeb: Reactive relay selection in cooperative spectrum-sharing systems. WCNC 2012: 1098-1102

Amir Minayi Jalil, Vahid Meghdadi, Ali Ghrayeb, Jean-Pierre Cances: Order-statistics-based relay selection for uplink cellular networks. WCNC 2012: 1103-1107

Keyvan Zarifi, Slim Zaidi, Sofiène Affes, Ali Ghrayeb: A Distributed Amplify-and-Forward Beamforming Technique in Wireless Sensor Networks. IEEE Transactions on Signal Processing 59(8): 3657-3674 (2011)

Keyvan Zarifi, Ali Ghrayeb, Sofiène Affes: Jointly Optimal Source Power Control and Relay Matrix Design in Multipoint-to-Multipoint Cooperative Communication Networks. IEEE Transactions on Signal Processing 59(9): 4313-4330 (2011)

Ghaleb Al-Habian, Ali Ghrayeb, Mazen O. Hasna, Adnan Abu-Dayya: Threshold-Based Relaying in Coded Cooperative Networks. IEEE T. Vehicular Technology 60(1): 123-135 (2011)

Xuehua Zhang, Ali Ghrayeb, Mazen Omar Hasna: On Relay Assignment in Network-Coded Cooperative Systems. IEEE Transactions on Wireless Communications 10(3): 868-876 (2011)

Karama Hamdi, Keyvan Zarifi, Khaled Ben Letaief, Ali Ghrayeb: Beamforming in Relay-Assisted Cognitive Radio Systems: A Convex Optimization Approach. ICC 2011: 1-5

Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb: Joint Source Power Control and Relay Beamforming in Amplify-and-Forward Cognitive Networks with Multiple Source-Destination Pairs. ICC 2011: 1-6

Amir Minayi Jalil, Vahid Meghdadi, Ali Ghrayeb, Jean-Pierre Cances: A simple optimal solution for relay assignment in cooperative systems based on the max-min criterion. PIMRC 2011: 1768-1772

Taher Abualrub, Ali Ghrayeb, Nuh Aydin, Irfan Siap: On the construction of skew quasi-cyclic codes. IEEE Transactions on Information Theory 56(5): 2081-2090 (2010)

Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb: Collaborative null-steering beamforming for uniformly distributed wireless sensor networks. IEEE Transactions on Signal Processing 58(3): 1889-1903 (2010)

Keyvan Zarifi, Ali Ghrayeb, Sofiène Affes: Distributed beamforming for wireless sensor networks with improved graph connectivity and energy efficiency. IEEE Transactions on Signal Processing 58(3): 1904-1921 (2010)

Sinh Le Hong Nguyen, Ali Ghrayeb, Ghaleb Al-Habian, Mazen Omar Hasna: Mitigating Error Propagation in Two-Way Relay Channels with Network Coding. IEEE Transactions on Wireless Communications 9(11): 3380-3390 (2010)

Hassan Aghaei Baradaran, Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb: A Dual-Hop Amplify-and-Forward MIMO Cooperative Beamformer in Distributed Wireless Sensor Networks. GLOBECOM 2010: 1-5

Farrokh Etezadi, Leszek Szczecinski, Ali Ghrayeb: Correction of the CFO in OFDM Relay-Based Space-Time Codes. GLOBECOM 2010: 1-6

Farrokh Etezadi, Keyvan Zarifi, Ali Ghrayeb, Sofiène Affes: Topology-Assisted Techniques to Relay Selection for Homogeneously Distributed Wireless Sensor Networks. GLOBECOM 2010: 1-6

Karama Hamdi, Xiang Nian Zeng, Ali Ghrayeb, Khaled Ben Letaief: Impact of Noise Power Uncertainty on Cooperative Spectrum Sensing in Cognitive Radio Systems. GLOBECOM 2010: 1-5

Keyvan Zarifi, Ali Ghrayeb, Sofiène Affes: Joint Power Control and Relay Matrix Design for Cooperative Communication Networks with Multiple Source-Destination Pairs. GLOBECOM 2010: 1-6

Farrokh Etezadi, Leszek Szczecinski, Ali Ghrayeb: On the Achievable Sum Rates of Iterative MIMO Receivers with Linear Front-Ends. ICC 2010: 1-6

Xuehua Zhang, Ali Ghrayeb, Mazen Omar Hasna: Relay assignment in network-coded cooperative systems with M-PSK modulation over asymmetric channels. PIMRC 2010: 470-475

Ismail Shakeel, Mazen Omar Hasna, Adnan Abu-Dayya, Ali Ghrayeb: Reed-Solomon coding for cooperative wireless communication. PIMRC 2010: 1021-1026

Slim Zaidi, Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb: A Decentralized Collaborative Receive Beamforming Technique for Wireless Sensor Networks. VTC Spring 2010: 1-5

Mohamed Elfituri, Ali Ghrayeb, Walaa Hamouda: Antenna/relay selection for coded cooperative networks with AF relaying. IEEE Transactions on Communications 57(9): 2580-2584 (2009)

Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb: Large-System-Based Performance Analysis and Design of Multiuser Cooperative Networks. IEEE Transactions on Signal Processing 57(4): 1511-1525 (2009)

Mohamed Elfituri, Walaa Hamouda, Ali Ghrayeb: A Convolutional-Based Distributed Coded Cooperation Scheme for Relay Channels. IEEE T. Vehicular Technology 58(2): 655-669 (2009)

Pooyan Haghighat, Ali Ghrayeb: Trickle-based interference cancellation schemes for CDMA systems. IEEE Transactions on Wireless Communications 8(1): 13-17 (2009)

Xiang Nian Zeng, Ali Ghrayeb: CFO estimation schemes for differential OFDM systems. IEEE Transactions on Wireless Communications 8(1): 124-129 (2009)

Ali Ghrayeb, Xiang Nian Zeng: Joint CFO and channel estimation for OFDMA uplink: an application of the variable projection method. IEEE Transactions on Wireless Communications 8(5): 2306-2311 (2009)

Jeyadeepan Jeganathan, Ali Ghrayeb, Leszek Szczecinski, Andres Ceron: Space shift keying modulation for MIMO channels. IEEE Transactions on Wireless Communications 8(7): 3692-3703 (2009)

Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb: Distributed Null-Steering Beamforming for Wireless Sensor Networks. GLOBECOM 2009: 1-7

Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb: Distributed beamforming for wireless sensor networks with random node location. ICASSP 2009: 2261-2264

Ghaleb Al-Habian, Ali Ghrayeb, Mazen Omar Hasna: Controlling Error Propagation in Network-Coded Cooperative Wireless Systems. ICC 2009: 1-6

Keyvan Zarifi, Sofiène Affes, Ali Ghrayeb: Asymptotic Analysis and Design of Multiuser Cooperative DS-CDMA Systems. ICC 2009: 1-6

Xiang Nian Zeng, Ali Ghrayeb: CFO Estimation Schemes for Differential OFDM Systems. ICC 2009: 1-5

Keyvan Zarifi, Mohammed Abuthinien, Ali Ghrayeb, Sofiène Affes: Relay selection schemes for uniformly distributed wireless sensor networks. WCNC 2009: 237-242

Jeyadeepan Jeganathan, Ali Ghrayeb, Leszek Szczecinski: Spatial modulation: optimal detection and performance analysis. IEEE Communications Letters 12(8): 545-547 (2008)

Xiang Nian Zeng, Ali Ghrayeb: A blind carrier frequency offset estimation scheme for OFDM systems with constant modulus signaling. IEEE Transactions on Communications 56(7): 1032-1037 (2008)

Mohammed Ghazal, Aishy Amer, Ali Ghrayeb: Structure-Oriented Multidirectional Wiener Filter for Denoising of Image and Video Signals. IEEE Trans. Circuits Syst. Video Techn. 18(12): 1797-1802 (2008)

Mohamed Abou-Khousa, Ali Ghrayeb, Mohamed El-Tarhuni: A Multipath Detection Scheme for CDMA Systems With Space-Time Spreading. IEEE T. Vehicular Technology 57(1): 146-156 (2008)

Xiang Nian Zeng, Ali Ghrayeb: A Carrier Frequency Offset Estimation Scheme Based on a Scalar Extended Kalman Filter for Uplink OFDM Systems. ICC 2008: 568-572

Mohamed Elfituri, Ali Ghrayeb, Walaa Hamouda: Antenna/Relay Selection for Coded Wireless Cooperative Networks. ICC 2008: 840-844

Mohamed Elfituri, Walaa Hamouda, Ali Ghrayeb: Distributed coded Cooperation for Relay Channels Operating in the Decode-and-Forward Mode. ICC 2008: 4586-4590

Jeyadeepan Jeganathan, Ali Ghrayeb, Leszek Szczecinski: Generalized space shift keying modulation for MIMO channels. PIMRC 2008: 1-5

Xiang Nian Zeng, Ali Ghrayeb, Dun Mao: CFO estimation for uplink OFDM Systems: An application of the variable projection method. PIMRC 2008: 1-5

Taher Abualrub, Ali Ghrayeb, Nuh Aydin, Irfan Siap: On the Construction of Skew Quasi-Cyclic Codes. CoRR abs/0809.2315 (2008)

Mohammed Ghazal, Aishy Amer, Ali Ghrayeb: A Fast Directional Sigma Filter for Noise Reduction in Digital TV Signals. IEEE Trans. Consumer Electronics 53(4): 1500-1507 (2007)

Mohammed Ghazal, Aishy Amer, Ali Ghrayeb: A Real-Time Technique for Spatio-Temporal Video Noise Estimation. IEEE Trans. Circuits Syst. Video Techn. 17(12): 1690-1699 (2007)

Mohamed Abou-Khousa, Ali Ghrayeb, Mohamed El-Tarhuni: An Efficient Multipath Detection Scheme for CDMA Systems. IEEE Transactions on Wireless Communications 6(8): 2776-2781 (2007)

May Gomaa, Ali Ghrayeb: A New Transceiver Architecture for Multilayered Space-Time Coded MIMO Systems. GLOBECOM 2007: 3958-3962

Chuan Xiu Huang, Ali Ghrayeb: A simple remedy for the exaggerated extrinsic information produced by the SOVA algorithm. IEEE Transactions on Wireless Communications 5(5): 996-1002 (2006)

Abdollah Sanei, Ali Ghrayeb, Yousef R. Shayan, Tolga M. Duman: On the diversity order of space-time trellis codes with receive antenna selection over fast fading channels. IEEE Transactions on Wireless Communications 5(7): 1579-1585 (2006)

Ali Ghrayeb, Mohamed El-Tarhuni: On the performance of turbo equalization for precoded ISI channels. Wireless Communications and Mobile Computing 6: 431-438 (2006)

Gaurav P. Mandhare, Ali Ghrayeb: A Distributed BER-Based Power Control Algorithm for WCDMA Systems. GLOBECOM 2006

Xiang Nian Zeng, Ali Ghrayeb: Performance Bounds for Combined Channel Coding and Space-Time Block Coding with Receive Antenna Selection. ICC 2006: 3282-3286

Hao Shen, Ali Ghrayeb: Explicit Bounds for the Outage Probability for Multiple Antenna Systems in the Presence of Spatial Correlation. ICC 2006: 4253-4257

Mohamed Elfituri, Walaa Hamouda, Ali Ghrayeb: Performance Analysis of a New Transmission Scheme for Multi-Relay Channels. SiPS 2006: 34-38

Xiang Nian Zeng, Ali Ghrayeb: Maximum Likelihood Estimation of Carrier Frequency Offset in Correlated MIMO OFDM Systems. SiPS 2006: 51-55

Gaurav P. Mandhare, Ali Ghrayeb: A Distributed SIR-Based Power Control Algorithm for WCDMA Systems. VTC Fall 2006: 1-5

Abdollah Sanei, Ali Ghrayeb, Yousef R. Shayan: Antenna Selection for Space-Time Trellis Codes Over Block Rayleigh Fading Channels. VTC Fall 2006: 1-5

Hao Shen, Ali Ghrayeb: Analysis of the outage probability for spatially correlated MIMO channels with receive antenna selection. GLOBECOM 2005: 5

Mohamed Abou-Khousa, Ali Ghrayeb, Mohamed El-Tarhuni: On multipath detection in CDMA systems. ICC 2005: 2097-2101

Mohammed Ghazal, Aishy Amer, Ali Ghrayeb: Homogeneity-based directional sigma filtering of video noise. ICIP (1) 2005: 97-100

Hao Shen, Ali Ghrayeb: On the asymptotic behavior of the outage probability for MIMO systems. WCNC 2005: 386-390

Ali Ghrayeb, Taher Abualrub: Asymptotic performance comparison of concatenated (turbo) codes over GF(4). Int. J. Communication Systems 17(5): 479-490 (2004)

Xiang Nian Zeng, Ali Ghrayeb: Performance Bounds for Space-Time Block Codes With Receive Antenna Selection. IEEE Transactions on Information Theory 50(9): 2130-2137 (2004)

Taher Abualrub, Ali Ghrayeb, Robert H. Oehmke: A mass formula and rank of /spl Zopf//sub 4/ cyclic codes of length 2/sup e/. IEEE Transactions on Information Theory 50(12): 3306-3312 (2004)

Mohamed El-Tarhuni, Ali Ghrayeb: A robust PN code tracking algorithm for frequency selective Rayleigh-fading channels. IEEE Transactions on Wireless Communications 3(4): 1018-1023 (2004)

Chuan Xiu Huang, Ali Ghrayeb: Improved SOVA and APP decoding algorithms for serial concatenated codes. GLOBECOM 2004: 189-193

Xiang Nian Zeng, Ali Ghrayeb: Performance analysis of combined convolutional coding and space-time block coding with antenna selection. GLOBECOM 2004: 795-799

Mohamed Abou-Khousa, Mohamed El-Tarhuni, Ali Ghrayeb: A novel finger assignment algorithm for RAKE receivers in CDMA systems. ICC 2004: 2516-2520

Chuan Xiu Huang, Ali Ghrayeb: An improved SOVA algorithm for turbo codes over AWGN and fading channel. PIMRC 2004: 1121-1125

Abdollah Sanei, Ali Ghrayeb, Yousef R. Shayan, Tolga M. Duman: Antenna selection for space-time trellis codes in fast fading. PIMRC 2004: 1623-1627

Ali Ghrayeb, William E. Ryan: Concatenated code system design for storage channels. IEEE Journal on Selected Areas in Communications 19(4): 709-718 (2001)

Ali Ghrayeb, William E. Ryan: Concatenated Coding and Iterative SOVA Decoding with PR4 Signaling. ICC (2) 2000: 597-601