Amplitude Space Sharing among the Macro-Cell and Small-Cell Users

Yafei Tian; Songtao Lu; Chenyang Yang

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arXiv · 1210.2146

Amplitude Space Sharing among the Macro-Cell and Small-Cell Users

Yafei Tian·Songtao Lu·Chenyang Yang

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Abstract

The crushing demand for wireless data services will soon exceed the capability of the current homogeneous cellular architecture. An emerging solution is to overlay small-cell networks with the macro-cell networks. In this paper, we propose an amplitude space sharing (ASS) method among the macro-cell user and small-cell users. By transmit layer design and data-rate optimization, the signals and interferences are promised to be separable at each receiver and the network sum-rate is maximized. The Han-Koboyashi coding is employed and optimal power allocation is derived for the one small-cell scenario, and a simple ASS transmission scheme is developed for the multiple small-cells scenarios. Simulation results show great superiority over other interference management schemes.

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Yafei Tian, Songtao Lu, Chenyang Yang. 2012-10-08. Amplitude Space Sharing among the Macro-Cell and Small-Cell Users. https://arxiv.org/abs/1210.2146

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