Real-time Distributed MIMO Systems
Name
Katabi_Real-time distributed.pdf
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364.2 KB
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Author(s)
Hamed, Ezzeldin Omar Hussein
Rahul, Hariharan Shankar
Abdelghany, Mohammed Ahmed
Katabi, Dina
Date Issued
August 2016
Journal
Proceedings of the 2016 conference on ACM SIGCOMM 2016 Conference - SIGCOMM '16
Publisher
Association for Computing Machinery
Citation
Hamed, Ezzeldin, et al. "Real-Time Distributed MIMO Systems." Proceedings of the 2016 ACM SIGCOMM Conference, SIGCOMM '16, 22-26 August, 2016, Florianopolis, Brazil, ACM Press, 2016, pp. 412–25.
Version
Author's final manuscript
Abstract
Recent years have seen a lot of work in moving distributed MIMO from theory to practice. While this prior work demonstrates the feasibility of synchronizing multiple transmitters in time, frequency, and phase, none of them deliver a full-fledged PHY capable of supporting distributed MIMO in real-time. Further, none of them can address dynamic environments or mobile clients. Addressing these challenges, requires new solutions for low-overhead and fast tracking of wireless channels, which are the key parameters of any distributed MIMO system. It also requires a software-hardware architecture that can deliver a distributed MIMO within a full-fledged 802.11 PHY, while still meeting the tight timing constraints of the 802.11 protocol. This architecture also needs to perform coordinated power control across distributed MIMO nodes, as opposed to simply letting each node perform power control as if it were operating alone. This paper describes the design and implementation of MegaMIMO 2.0, a system that achieves these goals and delivers the first real-time fully distributed 802.11 MIMO system.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1145/2934872.2934905
