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Full-Text Articles in Electrical and Computer Engineering
Wireless Valuables Monitoring Device, With Proximity Sensing And Automatic Arming And Disarming, Hani Mehrpouyan, Christopher Mitchell, Matthew T. Brown
Wireless Valuables Monitoring Device, With Proximity Sensing And Automatic Arming And Disarming, Hani Mehrpouyan, Christopher Mitchell, Matthew T. Brown
Hani Mehrpouyan
The invention relates to apparatus and methods for detecting when an object is disturbed and generating an alarm in response thereto. The invention has general application to protecting valuables. Some embodiments of the invention are applied to protect laptop computers or other portable electronic devices.
Arma Synthesis Of Fading Channels: An Application To The Generation Of Dynamic Mimo Channels, Hani Mehrpouyan, Steven D. Blostein
Arma Synthesis Of Fading Channels: An Application To The Generation Of Dynamic Mimo Channels, Hani Mehrpouyan, Steven D. Blostein
Hani Mehrpouyan
Adaptive transceivers play an important role in wireless communications and the design of MIMO systems. Therefore models that enable simulation of dynamic and time varying channels in a computationally scalable fashion are extremely valuable. Previously, the application of autoregressive moving average (ARMA) modeling to fading processes has been complicated by ill-conditioning and nonlinear parameter estimation. This paper presents a numerically stable and accurate method to synthesize ARMA rational approximations of correlated Rayleigh fading processes from more complex higher order representations. The resulting ARMA synthesis is then used in the generation of dynamic MIMO channel realizations with time varying Doppler at …
Random Antenna Selection & Antenna Swapping Combined With Ostbcs, Hani Mehrpouyan, Steven D. Blostein, Edmund C.Y. Tam
Random Antenna Selection & Antenna Swapping Combined With Ostbcs, Hani Mehrpouyan, Steven D. Blostein, Edmund C.Y. Tam
Hani Mehrpouyan
This paper proposes a novel and efficient iterative antenna selection algorithm based on an SNR selection criterion for a multi-input-multi-output (MIMO) system employing orthogonal space time block codes (OSTBCs), specifically Alamouti codes. The proposed algorithm addresses the open problem of finding a suboptimal set of transmit and receive antennas that performs close to the globally optimum configuration selection solution at significantly reduced complexity. Also, the paper is proposing a method to incrementally update the selected set of antennas, so as to enable even greater complexity reduction, and in particular, for the case of channels with temporal or time correlation. To …