Decode-and-Forward Relaying Using a Backscatter Device - Power Allocation and BER Analysis.
GLOBECOM(2019)
摘要
We consider the use of a backscatter device as a relay, and examine a new decode-and-forward (DF) scheme specifically designed for backscatter relaying. In the proposed scheme, the source node transmits continuous-wave (CW) signals to power the backscatter relay in the relay-to-destination phase of the data transmission. We characterise the end-to-end bit error rate (BER) performance for on-off keying (OOK) modulation. In addition, we formulate and solve a power allocation problem at the source node, where the source is subject to a power budget constraint. Numerical results show that the relay-to-destination link is the bottleneck for the end-to-end performance; and that it is essential to allocate most of the sourceu0027s power budget to its transmission of CW signals to power the relayu0027s transmission.
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关键词
relay transmission,CW signal transmission,OOK modulation,on-off keying modulation,data transmission,continuous-wave signals,decode-and-forward relaying,end-to-end performance,relay-to-destination link,power budget constraint,power allocation problem,bit error rate performance,relay-to-destination phase,source node,backscatter relaying,decode-and-forward scheme,BER analysis,backscatter device
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