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Superanalysis of the interference effect on adaptive antenna systems

Author(s)
Jeong, Youngmin; Shin, Hyundong; Win, Moe Z.
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Abstract
We analyze the performance of optimum combining in a general cochannel interference environment with thermal noise. Specifically, we consider multiple unequal-power interferers, each is spatially correlated across receiving antennas. We develop a new mathematical methodology to analyze the average symbol error probability (SEP) of optimum combining diversity systems in Rayleigh fading. The analysis resorts to the so-called Berezin's supermathematics that treats both commuting and Grassmann anticommuting variables on an equal footing. This superanalysis framework enables us to derive the exact SEP expression for an arbitrary number of interferers with spatial correlation and possibly different power levels. Our results therefore encompass all the previous analytical results, based on the theory of multivariate statistics relating to complex Wishart matrices, for equal-power and/or spatially-uncorrelated interferers. Connecting the powerful supermathematical framework to the analysis of wireless diversity systems with optimum combining, we quantify the interference effects in terms of the degree of power unbalance and the amount of spatial correlation.
Date issued
2010-12
URI
http://hdl.handle.net/1721.1/65944
Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics; Massachusetts Institute of Technology. Laboratory for Information and Decision Systems
Journal
GLOBECOM 2010 : IEEE Global Telecommunications Conference
Publisher
Institute of Electrical and Electronics Engineers
Citation
Youngmin Jeong, Hyundong Shin, and M.Z. Win. “Superanalysis of the Interference Effect on Adaptive Antenna Systems.” GLOBECOM 2010, 2010 IEEE Global Telecommunications Conference. 2010. 1-5. Copyright © 2010, IEEE
Version: Final published version
Other identifiers
INSPEC Accession Number: 11743722
ISBN
978-1-4244-5637-6
978-1-4244-5636-9
ISSN
1930-529X

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