Practical, real-time, full duplex wireless

Mayank Jain; Jung Il Choi; Taemin Kim; Dinesh Bharadia; Siddharth Seth; Kannan Srinivasan; Philip Levis; Sachin Katti; Prasun Sinha

doi:10.1145/2030613.2030647

Practical, real-time, full duplex wireless

Mayank Jain, Jung Il Choi, Taemin Kim, Dinesh Bharadia, Siddharth Seth, Kannan Srinivasan, Philip Levis, Sachin Katti, Prasun Sinha

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1180 Scopus citations

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.

Original language	English (US)
Title of host publication	Proceedings of the 17th annual international conference on Mobile computing and networking - MobiCom '11
Publisher	Association for Computing Machinery (ACM)
Pages	301-312
Number of pages	12
ISBN (Print)	9781450304924
DOIs	https://doi.org/10.1145/2030613.2030647
State	Published - 2011
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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10.1145/2030613.2030647

Cite this

@inproceedings{26a3377c09f143e0957f3d1c9a5e8a82,

title = "Practical, real-time, full duplex wireless",

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. {\textcopyright} 2011 ACM.",

author = "Mayank Jain and Choi, {Jung Il} and Taemin Kim and Dinesh Bharadia and Siddharth Seth and Kannan Srinivasan and Philip Levis and Sachin Katti and Prasun Sinha",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2011",

doi = "10.1145/2030613.2030647",

language = "English (US)",

isbn = "9781450304924",

pages = "301--312",

booktitle = "Proceedings of the 17th annual international conference on Mobile computing and networking - MobiCom '11",

publisher = "Association for Computing Machinery (ACM)",

address = "United States",

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T1 - Practical, real-time, full duplex wireless

AU - Jain, Mayank

AU - Choi, Jung Il

AU - Kim, Taemin

AU - Bharadia, Dinesh

AU - Seth, Siddharth

AU - Srinivasan, Kannan

AU - Levis, Philip

AU - Katti, Sachin

AU - Sinha, Prasun

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2011

Y1 - 2011

N2 - 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.

AB - 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.

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UR - http://dl.acm.org/citation.cfm?doid=2030613.2030647

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U2 - 10.1145/2030613.2030647

DO - 10.1145/2030613.2030647

M3 - Conference contribution

SN - 9781450304924

SP - 301

EP - 312

BT - Proceedings of the 17th annual international conference on Mobile computing and networking - MobiCom '11

PB - Association for Computing Machinery (ACM)

ER -

Practical, real-time, full duplex wireless

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