Achieving single channel, full duplex wireless communication

Abstract
This paper discusses the design of a single channel full-duplex wireless transceiver. The design uses a combination of RF and baseband techniques to achieve full-duplexing with minimal effect on link reliability. Experiments on real nodes show the full-duplex prototype achieves median performance that is within 8% of an ideal full-duplexing system. This paper presents Antenna Cancellation, a novel technique for self-interference cancellation. In conjunction with existing RF interference cancellation and digital baseband interference cancellation, antenna cancellation achieves the amount of self-interference cancellation required for full-duplex operation. The paper also discusses potential MAC and network gains with full-duplexing. It suggests ways in which a full-duplex system can solve some important problems with existing wireless systems including hidden terminals, loss of throughput due to congestion, and large end-to-end delays. Copyright 2010 ACM.

Citation
Choi JI, Jain M, Srinivasan K, Levis P, Katti S (2010) Achieving single channel, full duplex wireless communication. Proceedings of the sixteenth annual international conference on Mobile computing and networking - MobiCom ’10. Available: http://dx.doi.org/10.1145/1859995.1859997.

Acknowledgements
This work was supported by generous gifts from DoCoMo Capital,the National Science Foundation under grants #0831163 and#0846014, the King Abdullah University of Science and Technology(KAUST), Microsoft Research, a scholarship from the SamsungScholarship Foundation and a Stanford Terman Fellowship.Finally, we would like to thank our shepherd, Ashutosh Sabharwal,and the anonymous reviewers for their comments.

Publisher
Association for Computing Machinery (ACM)

Journal
Proceedings of the sixteenth annual international conference on Mobile computing and networking - MobiCom '10

DOI
10.1145/1859995.1859997

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