Research Article
Joint Receive Beamforming and Backscatter Device Grouping Design for Multi-source Ambient Backscatter Communication
@INPROCEEDINGS{10.1007/978-3-032-33662-0_9, author={Diancheng Cheng and Xiang Li and Haoyue Zheng and Yu Feng and Lianyuan Li and Bo Wu and Xin Ge}, title={Joint Receive Beamforming and Backscatter Device Grouping Design for Multi-source Ambient Backscatter Communication}, proceedings={Communications and Networking. 20th EAI International Conference, ChinaCom 2025, Xi’an, China, November 8--9, 2025, Proceedings}, proceedings_a={CHINACOM}, year={2026}, month={10}, keywords={6g ambient backscatter communication receive beamforming management backscatter device grouping}, doi={10.1007/978-3-032-33662-0_9} }- Diancheng Cheng
Xiang Li
Haoyue Zheng
Yu Feng
Lianyuan Li
Bo Wu
Xin Ge
Year: 2026
Joint Receive Beamforming and Backscatter Device Grouping Design for Multi-source Ambient Backscatter Communication
CHINACOM
Springer
DOI: 10.1007/978-3-032-33662-0_9
Abstract
Ambient backscatter communication (AmBC) is a cutting-edge technology for massive connection and ubiquitous communication in the six-generation (6G) network, where massive ultra-low power backscatter devices (BDs) can power themselves with radio frequency energy harvesting (RF-EH) and transmit their collected data with backscatter communication. However, massive connection with AmBC suffers from efficiency barrier because of its inherent direct-link interference (DLI) from ambient RF source (AS) and multiple BD access competition. In this paper, a joint receive beamforming and BD grouping design scheme is proposed to improve the sum-rate efficiency of massive BDs under multi-source AmBC networks. By utilizing beamforming management, the inter-AS DLI can be significantly suppressed while the grouped BDs can benefit from specific receive beamforming avoiding random access competition. Simulation results show the outstanding sum-rate performance of our proposed design strategy compared with traditional AmBC systems without careful beamforming management and/or BD grouping.