1 Adaptive Modeling and Long-Range Prediction of Mobile Fading Channels (2009)
Abdorreza Heidari, Student Member, Amir K. Kh, Derek Mcavoy
A key element for many fading-compensation techniques is a (long-range) prediction tool for the fading channel. A linear approach, usually used to model the time evolution of the fading process, does...
Signal Recovery in Pulsed Terahertz Integrated Circuits (2009)
Heidari, Abdorreza, Neshat, Mohammad, Saeedkia, Daryoosh, Safavi-Naeini, Safieddin
In this article, a time-domain calibration procedure is proposed for pulsed Terahertz Integrated Circuits (TIC) used in on-chip applications, where the conventional calibration methods are not...
Closed-Loop Transmit Diversity with Imperfect Feedback (2008)
Abdorreza Heidari, Student Member, Amir K. Kh
The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in MIMO communication systems. In these closed-loop systems, feedback delay and feedback error,...
Enhancing Closed-Loop Wireless Systems Through Efficient Feedback Reconstruction (2008)
Abdorreza Heidari, Student Member, Farshad Lahouti, Amir K. Kh
Abstract—The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in multiple-input multiple-output (MIMO) communication systems. The wideband...
Improved Closed-Loop Communication in the Presence of Feedback Delay and Error (2008)
Abstract — The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in MIMO communication systems. The WCDMA standard endorsed by 3GPP adopts two...
Utilizing Channel State Information for Enhancement of Wireless Communication Systems (2007)
One of the fundamental limitations of mobile radio communications is their time-varying fading channel. This thesis addresses the efficient use of channel state information to improve the...
Adaptive Modeling, Prediction, and Tracking of Wireless Fading Channels (2007)
Abdorreza Heidari, Amir K. Kh, Abdorreza Heidari, Amir K. Kh
A key element for many fading-compensation techniques is long-range prediction of the fading channel. A linear approach, usually used to model the time evolution of the fading process, does not...
Adaptive Modeling and Long-Range Prediction of Wireless Channel Fading (2006)
Abdorreza Heidari, Amir K. Kh, Abdorreza Heidari, Amir K. Kh
Coherent communication requires that channel estimates be available at the receiver. These estimates are usually obtained using some sort of preamble or pilots. Powerful pilots may not be available...
Adaptive Long-Range Prediction of Mobile Fading,” The 23rd (2006)
Abdorreza Heidari, Derek Mcavoy, Amir K. Kh
Abstract — Long-range prediction of fading in mobile systems is the key element for many fading-compensation techniques. A linear approach, which is usually used to model the time evolution of the...
Efficient Closed-Loop Communication in the Presence of Feedback Delay and Error (2006)
Abdorreza Heidari, Amir K. Kh, Abdorreza Heidari, Amir K. Kh
The closed-loop transmit diversity technique is used to improve the performance of the downlink channel in MIMO communication systems. The WCDMA standard endorsed by 3GPP adopts two modes of downlink...
Improved Reconstruction of Channel State Information for Low-Rate Feedback Schemes (2005)
Abdorreza Heidari, Abdorreza Heidari, Farshad Lahouti, Farshad Lahouti, Amir K. Kh, Amir K. Kh
The closed-loop transmit diversity technique is used to increase the capacity of the downlink channel in multiple-input-multiple-output (MIMO) communication systems. The WCDMA standard [1] endorsed...
Improved Reconstruction of Channel State Information for Low-Rate Feedback Schemes (2005)
Abdorreza Heidari, Farshad Lahouti, Amir K. Kh
Abstract — The closed-loop transmit diversity technique is used to increase the capacity of downlink channel in multiple-input-multiple-output (MIMO) communications systems. The WCDMA standard...