Outage Probability Analysis of AF Relaying Systems with Heterogeneous Ad Hoc Networks

Tianyang Cao

Abstract


In this paper, we analyze the outage probability of AF relaying systems with Heterogeneous Ad Hoc Networks with respect to power allocation. The communicaton system can be decomposed into a a two-tier heterogeneous ad hoc network and a single-input multiple-output (SIMO) system, where the information ad hoc network and the energy ad hoc network coexist and share the same spectrum resource. We firstly establish the end-to-end signal-to-noise ratio (SNR) expression considering that the energy/information signals are transmitted with different power levels, to maximum the SNR at the terminal node, we then investigate a power allocation scheme at the relay node. Closed-form expressions for the outage probability are analytically derived based on special functions, moreover, we propose the outage probability can be tightly lower bounded by a simple expression for the case when the SNR is sufficiently high. Numerical and simulation results are also reported to verfiy our theory. This paper provides a benefical insight into performance optimization for wireless communication networks.

Keywords


Index Terms—heterogeneous ad hoc networks; AF relaying systems; outage probability


DOI
10.12783/dtcse/wicom2018/26272

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