Changes between Initial Version and Version 1 of FullDuplexPassiveSuppression


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Timestamp:
Feb 17, 2013, 5:45:55 PM (11 years ago)
Author:
evaneverett
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  • FullDuplexPassiveSuppression

    v1 v1  
     1= Passive Self-Interference Suppression for Full-Duplex Infrastructure Nodes =
     2Submitted to ''IEEE Transactions on Wireless Communication'' - January 2013
     3
     4Authors: Evan Everett, Achaleshwar Sahai, Ashutosh Sabharwal
     5
     6== Abstract ==
     7Recent research results have demonstrated the feasibility of full-duplex wireless communication for short-range links. Although the focus of the previous works has been active cancellation of the self-interference signal, a majority of the overall self-interference suppression is often due to passive suppression, i.e., isolation of the transmit and receive antennas. We present a measurement-based study of the capabilities and limitations of three key mechanisms for passive self-interference suppression: directional isolation, absorptive shielding, and cross-polarization. The study demonstrates that more than 70 dB of passive suppression can be achieved in certain environments, but also establishes two results on the limitations of passive suppression: (1) environmental reflections limit the amount of passive suppression that can be achieved, and (2) passive suppression, in general, increases the frequency selectivity of the residual self-interference signal. These results suggest two design implications: (1) deployments of full-duplex infrastructure nodes should minimize near-antenna reflectors, and (2) active cancellation in concatenation with passive suppression should employ higher-order filters or per-subcarrier cancellation.
     8
     9== Links ==
     10 * [http://arxiv.org/abs/1302.2185 Download]
     11 * See on [http://arxiv.org/abs/1302.2185 arXiv]
     12 
     13
     14== Citation ==
     15{{{
     16@unpublished{Everett2013PassiveSuppressionFD,
     17        Author = {Evan Everett and Achaleshwar Sahai and Ashutosh Sabharwal},
     18        Date-Modified = {2013-02-17 17:35:49 -0600},
     19        Keywords = {full-duplex},
     20        Month = {January},
     21        Note = {Submitted to \emph{IEEE Transactions on Wireless Communication}},
     22        Title = {Passive Self-Interference Suppression for Full-Duplex Infrastructure Nodes},
     23        Url = {http://arxiv.org/abs/1302.2185},
     24        Year = {2013}}
     25}}}