Achievable Rates of Buffer-Aided Full-Duplex Gaussian Relay Channels

Ahmed El Shafie, Ahmed Sultan Salem, Ioannis Krikidis, Naofal Al-Dhahir, Ridha Hamila

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

We derive closed-form expressions for the achievable rates of a buffer-aided full-duplex (FD) multiple-input multipleoutput (MIMO) Gaussian relay channel. The FD relay still suffers from residual self-interference (RSI) after the application of self-interference mitigation techniques. We investigate both cases of a slow-RSI channel where the RSI is fixed over the entire codeword, and a fast-RSI channel where the RSI changes from one symbol duration to another within the codeword. We show that the RSI can be completely eliminated in the slow-RSI case when the FD relay is equipped with a buffer while the fast RSI cannot be eliminated. For the fixed-rate data transmission scenario, we derive the optimal transmission strategy that should be adopted by the source node and relay node to maximize the system throughput. We verify our analytical findings through simulations.
Original languageEnglish (US)
Pages (from-to)23776-23791
Number of pages16
JournalIEEE Access
Volume5
DOIs
StatePublished - Oct 18 2017

Fingerprint Dive into the research topics of 'Achievable Rates of Buffer-Aided Full-Duplex Gaussian Relay Channels'. Together they form a unique fingerprint.

Cite this