Performance Analysis for Analog Network Coding with Imperfect CSI in FDD Two Way Channels

Peng Xidan () and Li Xiangyang ()
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Peng Xidan: Jiangxi Electric Power Corporation, Nanchang330077, China
Li Xiangyang: Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai200240, China

Journal of Systems Science and Information, 2015, vol. 3, issue 4, 357-364

Abstract: A time-division duplex (TDD) two-way channel exploits reciprocity to estimate the forward channel gain from the reverse link. Many previous works explore outage probabilities in the TDD system, based on the reciprocity property. However, a frequency-division duplex (FDD) system has no reciprocity property. In this letter, we investigate the impact of CSI estimation error on the performance of non-orthogonal and orthogonal analog network coding protocols in an FDD two-way system, where channel gains are independent of each other. Considering imperfect CSI, the closed-form expressions of outage probabilities by two protocols are derived in the high signal-to-noise ratio (SNR) regime, respectively. It is shown that the derived outage probabilities match results of Monte Carlo simulations in different communication scenarios. It is interesting that ANC in the FDD two-way channel is proved to outperform that in the TDD channel by the computer simulation.

Keywords: two-way; ANC; imperfect CSI; FDD (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:bpj:jossai:v:3:y:2015:i:4:p:357-364:n:6

DOI: 10.1515/JSSI-2015-0357

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