Optimal SISO and MIMO Spectral Efficiency to Minimize Hidden-Node Network Interference
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Bliss-2010-Optimal SISO and MIM.pdf
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226.51 KB
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Checksum (MD5)
9b6304bf7a044a066d49224e18241f9a
Date Issued
July 2010
Journal
IEEE communications letters
Publisher
Institute of Electrical and Electronics Engineers
Citation
Bliss, D.W. “Optimal SISO and MIMO Spectral Efficiency to Minimize Hidden-Node Network Interference.” Communications Letters, IEEE 14.7 (2010) : 620-622. Copyright © 2010, IEEE
Version
Final published version
Abstract
In this letter, the optimal spectral efficiency for a given message size that minimizes the probability of causing disruptive interference for ad hoc wireless networks or cognitive radios is investigated. Implicitly, the trade being optimized is between longer transmit duration and wider bandwidth versus higher transmit power. Both single-input single-output (SISO) and multiple-input multiple-output (MIMO) links are considered. Here, a link optimizes its spectral efficiency to be a "good neighbor." The probability of interference is characterized by the probability that the signal power received by a hidden node in a wireless network exceeds some threshold. The optimization is a function of the transmitter-to-hidden-node channel exponent. It is shown that for typical channel exponents a spectral efficiency of slightly greater than 1 b/s/Hz per antenna is optimal.
MIT Department
Lincoln Laboratory
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1109/lcomm.2010.07.100442
