Abstract—In this paper, we propose a novel ML decoding scheme based on the combination of depth- and breadth-first search methods on a partitioned tree for multiple input multiple output (MIMO) systems. The proposed scheme first partitions the searching tree into several stages, each of which

Abstract—Time reversal explores the rich scattering in a multipath environment to achieve high target detectability. Multiple-input multiple-output (MIMO) radar is an emerging active sensing technology that uses diverse waveforms transmitted from widely spaced antennas to achieve increased target

Geometric Mean Decomposition (BD-GMD) is a precoding scheme that is asymptotically optimal for downlink Multi-User Multiple-Input-Multiple-Output(MU-MIMO)systems. BD-GMD eliminate the interference between different user channels in MU-MIMO system under ideal condition, which leads to an improvement

Abstract-In this paper, we investigate the polarization charac-teristics of the multiple-input multiple-output (MIMO) channels. The cross polarization discrimination (XPD) is found to change over time, while its variation in frequency domain is relatively small. The probability density function

narrowband electromagnetic signal interference. Recently there have been many advances in multiple-input multiple-output (MIMO) antenna systems in communications. These diversity systems have been shown to have the potential to dramatically improve the performance of the communications systems. Unlike

Abstract — The discussion of bit and power loading

I would like to express my sincere gratitude to my advisor Asst. Prof. Dr. Berna Özbek for her valuable guidance and support. I am very proud that I had the chance to work with her. I would like to thank to the members of my Thesis Committee Asst. Prof. Dr. Radosveta Sokullu and Asst. Prof. Dr. Mustafa Altınkaya for their useful comments. I am deeply thankful to my parents Ahmet and Sabriye, and my brothers Mustafa and Hayati for their support and endless love through my life. Finally, I would like to thank my nieces Meliha and Burcu for making the hard times easier for me, with their joy

Abstract — OFDM system is combined with multiple-input multiple-output (MIMO) in order to increase the diversity gain and system capacity over the time variant frequency-selective channels. The current work is proposed to design an efficient scheme for orthogonal frequency division multiplexing

The Gaussian multiple-input multiple-output (MIMO) broadcast channel (BC) is considered. The dirty-paper coding (DPC) rate region is shown to coincide with the capacity region. To that end, a new notion of an enhanced broadcast channel is introduced and is used jointly with the entropy power

We derive a criterion on the measurability / identifiability of Multiple–Input Multiple–Output (MIMO) channels based on the size of the so-called spreading support of its subchannels. Novel MIMO transmission techniques provide high-capacity communication channels in time-varying environments