Computing the capacity of a MIMO fading channel under PSK signaling Academic Article

abstract

• We study the constrained capacity of a multiple-input multiple-output (MIMO) fading channel with a phase-shift keying (PSK) input alphabet and show a uniform prior distribution is capacity achieving. An expression for the capacity is derived which requires a single expectation and can be evaluated easily through simulation. The simulations are facilitated by analytical expressions for the eigenvalues and eigenvectors of a required covariance matrix. The derived expression is used to provide good approximations to the capacity at low signal-to-noise ratios (SNRs) as well as to compare the input-constrained MIMO capacity to the unconstrained MIMO capacity. 2005 IEEE.

authors

• Georghiades, Costas

published proceedings

• IEEE TRANSACTIONS ON INFORMATION THEORY

author list (cited authors)

• He, W. Y., & Georghiades, C. N.

citation count

• 32

complete list of authors

• He, WY||Georghiades, CN

publication date

• May 2005

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE TRANSACTIONS ON INFORMATION THEORY  Journal

keywords

• Capacity-achieving Distribution
• Constrained Input
• Multiple-input Multiple-output (mimo) Capacity
• Phase-shift Keying (psk) Signaling

Digital Object Identifier (DOI)

• 10.1109/TIT.2005.846426

start page

• 1794

end page

• 1803

volume

• 51

issue

• 5

URL

• http://dx.doi.org/10.1109/tit.2005.846426