Concurrent Channel Access and Estimation for Scalable Multiuser MIMO Networking

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Concurrent Channel Access and Estimation for Scalable Multiuser MIMO Networking

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Title: Concurrent Channel Access and Estimation for Scalable Multiuser MIMO Networking
Author: Lin, Tsung-Han; Kung, H. T.

Note: Order does not necessarily reflect citation order of authors.

Citation: Lin, Tsung-Han and H. T. Kung. 2012. Concurrent Channel Access and Estimation for Scalable Multiuser MIMO Networking. School of Engineering and Applied Sciences, Harvard University.
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Abstract: This paper presents the design of MIMO/CON (“MIMO with concurrent channel access and estimation”), a PHY/MAC cross-layer design delivering throughput scalable to many users for multiuser MIMO wireless networking. By allowing concurrent launches of multiple data transmissions from multiple users, MIMO/CON can fully realize the capacity gain of a multi-antenna MIMO system. Using compressive sensing, MIMO/CON simultaneously estimates channel state information (CSI) of multiple channels from concurrently received preambles. Furthermore, MIMO/CON can boost channel utilization by allowing concurrent transmissions to exceed receive antennas momentarily. MIMO/CON has been implemented and evaluated on a lab testbed with software-defined radios. Further, simulation results suggest that MIMO/CON can achieve an improvement by up to 210% in MAC throughput over existing staggered access protocols in a 5×5 MIMO scenario.
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:9299797

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  • FAS Scholarly Articles [7219]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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