Achievability of Nonlinear Degrees of Freedom in Correlatively Changing Fading Channels

Mina Karzand; Lizhong Zheng

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arXiv · 1401.2169

Achievability of Nonlinear Degrees of Freedom in Correlatively Changing Fading Channels

Mina Karzand·Lizhong Zheng

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Abstract

A new approach toward the noncoherent communications over the time varying fading channels is presented. In this approach, the relationship between the input signal space and the output signal space of a correlatively changing fading channel is shown to be a nonlinear mapping between manifolds of different dimensions. Studying this mapping, it is shown that using nonlinear decoding algorithms for single input-multiple output (SIMO) and multiple input multiple output (MIMO) systems, extra numbers of degrees of freedom (DOF) are available. We call them the nonlinear degrees of freedom.

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Mina Karzand, Lizhong Zheng. 2014-01-09. Achievability of Nonlinear Degrees of Freedom in Correlatively Changing Fading Channels. https://arxiv.org/abs/1401.2169

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