Enhancing full-duplex information transfer by RF energy harvesting

Chen Feng Liu, Marco Maso, Chia-Han Lee, Tony Q.S. Quek, Leonardo S. Cardoso

研究成果: Conference contribution同行評審

摘要

In practical implementations of single-Antenna full-duplex (FD) radios, the imperfect isolation between the transmit (TX) and receive (RX) ports of the circulator causes the leakage of a strong self-interference (SI) component. This issue reduces both the spectral and energy efficiency of the device. State-of-The-Art SI cancellation (SIC) solutions mitigate this problem, however they also constrain the maximum TX power of the FD radio. To address these issues and restrictions, we propose an energy recycling FD architecture that improves both the SIC capability and the spectral/energy efficiency of FD devices by means of a suitable radio frequency (RF) energy harvesting. The benefits brought by such solution are analyzed in an uplink (UL) scenario where two FD access points (APs), operating according to the proposed FD architecture, exchange signaling messages via a wireless link while communicating with two half-duplex (HD) mobile users (MUs). Our findings highlight non-negligible performance enhancements as compared to state-of-The-Art approaches. Specifically, the proposed architecture is shown to yield a rate enhancement up to 29% for both UL transmission and signaling, and the recycling of up to 50% of the wasted energy at the circulator.

原文English
主出版物標題2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781467398145
DOIs
出版狀態Published - 4月 2016
事件2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 - Doha, Qatar
持續時間: 3 4月 20167 4月 2016

出版系列

名字IEEE Wireless Communications and Networking Conference, WCNC
2016-September
ISSN(列印)1525-3511

Conference

Conference2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
國家/地區Qatar
城市Doha
期間3/04/167/04/16

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