Handle URI:
http://hdl.handle.net/10754/599375
Title:
Practical, real-time, full duplex wireless
Authors:
Jain, Mayank; Choi, Jung Il; Kim, Taemin; Bharadia, Dinesh; Seth, Siddharth; Srinivasan, Kannan; Levis, Philip; Katti, Sachin; Sinha, Prasun
Abstract:
This paper presents a full duplex radio design using signal inversion and adaptive cancellation. Signal inversion uses a simple design based on a balanced/unbalanced (Balun) transformer. This new design, unlike prior work, supports wideband and high power systems. In theory, this new design has no limitation on bandwidth or power. In practice, we find that the signal inversion technique alone can cancel at least 45dB across a 40MHz bandwidth. Further, combining signal inversion cancellation with cancellation in the digital domain can reduce self-interference by up to 73dB for a 10MHz OFDM signal. This paper also presents a full duplex medium access control (MAC) design and evaluates it using a testbed of 5 prototype full duplex nodes. Full duplex reduces packet losses due to hidden terminals by up to 88%. Full duplex also mitigates unfair channel allocation in AP-based networks, increasing fairness from 0.85 to 0.98 while improving downlink throughput by 110% and uplink throughput by 15%. These experimental results show that a re- design of the wireless network stack to exploit full duplex capability can result in significant improvements in network performance. © 2011 ACM.
Citation:
Jain M, Choi JI, Kim T, Bharadia D, Seth S, et al. (2011) Practical, real-time, full duplex wireless. Proceedings of the 17th annual international conference on Mobile computing and networking - MobiCom ’11. Available: http://dx.doi.org/10.1145/2030613.2030647.
Publisher:
Association for Computing Machinery (ACM)
Journal:
Proceedings of the 17th annual international conference on Mobile computing and networking - MobiCom '11
Issue Date:
2011
DOI:
10.1145/2030613.2030647
Type:
Conference Paper
Sponsors:
This work was supported by generous gifts from DoCoMo Capital,the National Science Foundation under grants #0832820, #0831163,#0846014 and #0546630, the King Abdullah University of Scienceand Technology (KAUST), Microsoft Research, scholarships fromthe Samsung Scholarship Foundation, a Stanford Graduate Fellowshipand a Stanford Terman Fellowship. We would like to thankMango Communications, especially Patrick Murphy, for timely arrangement for theWARP boards and support. Finally, we sincerelythank the anonymous reviewers for their invaluable comments.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorJain, Mayanken
dc.contributor.authorChoi, Jung Ilen
dc.contributor.authorKim, Taeminen
dc.contributor.authorBharadia, Dineshen
dc.contributor.authorSeth, Siddharthen
dc.contributor.authorSrinivasan, Kannanen
dc.contributor.authorLevis, Philipen
dc.contributor.authorKatti, Sachinen
dc.contributor.authorSinha, Prasunen
dc.date.accessioned2016-02-28T05:49:53Zen
dc.date.available2016-02-28T05:49:53Zen
dc.date.issued2011en
dc.identifier.citationJain M, Choi JI, Kim T, Bharadia D, Seth S, et al. (2011) Practical, real-time, full duplex wireless. Proceedings of the 17th annual international conference on Mobile computing and networking - MobiCom ’11. Available: http://dx.doi.org/10.1145/2030613.2030647.en
dc.identifier.doi10.1145/2030613.2030647en
dc.identifier.urihttp://hdl.handle.net/10754/599375en
dc.description.abstractThis paper presents a full duplex radio design using signal inversion and adaptive cancellation. Signal inversion uses a simple design based on a balanced/unbalanced (Balun) transformer. This new design, unlike prior work, supports wideband and high power systems. In theory, this new design has no limitation on bandwidth or power. In practice, we find that the signal inversion technique alone can cancel at least 45dB across a 40MHz bandwidth. Further, combining signal inversion cancellation with cancellation in the digital domain can reduce self-interference by up to 73dB for a 10MHz OFDM signal. This paper also presents a full duplex medium access control (MAC) design and evaluates it using a testbed of 5 prototype full duplex nodes. Full duplex reduces packet losses due to hidden terminals by up to 88%. Full duplex also mitigates unfair channel allocation in AP-based networks, increasing fairness from 0.85 to 0.98 while improving downlink throughput by 110% and uplink throughput by 15%. These experimental results show that a re- design of the wireless network stack to exploit full duplex capability can result in significant improvements in network performance. © 2011 ACM.en
dc.description.sponsorshipThis work was supported by generous gifts from DoCoMo Capital,the National Science Foundation under grants #0832820, #0831163,#0846014 and #0546630, the King Abdullah University of Scienceand Technology (KAUST), Microsoft Research, scholarships fromthe Samsung Scholarship Foundation, a Stanford Graduate Fellowshipand a Stanford Terman Fellowship. We would like to thankMango Communications, especially Patrick Murphy, for timely arrangement for theWARP boards and support. Finally, we sincerelythank the anonymous reviewers for their invaluable comments.en
dc.publisherAssociation for Computing Machinery (ACM)en
dc.subjectfull-duplex wirelessen
dc.titlePractical, real-time, full duplex wirelessen
dc.typeConference Paperen
dc.identifier.journalProceedings of the 17th annual international conference on Mobile computing and networking - MobiCom '11en
dc.contributor.institutionStanford University, Palo Alto, United Statesen
dc.contributor.institutionUniversity of Texas at Austin, Austin, United Statesen
dc.contributor.institutionOhio State University, Columbus, United Statesen
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