Abstract
In this paper, relay node deployment strategies are adopted into heterogeneous network scenario. The existence of cooperative relay nodes introduces more interference in the cellular domain. Firstly, we give the hetero-interference models which have great influence on heterogeneous access performance. Furthermore, outage probability and symbol error rate formula are derived under heterogeneous relay network. On this basis, Nearest-Neighbor algorithm and fixed deployment strategy are adopted to analyze cooperative network performance. Numerical results show that the Nearest-Neighbor solution can effectively improve the cellular performance in the heterogeneous environment.
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