A Variational Approach for Assessing the Capacity of a Memoryless Nonlinear MIMO Channel

abstract

• A transmission over a memoryless discrete-time noisy multiple-input- multiple-output (MIMO) channel is considered here in this letter, where the signal is distorted according to a nonlinear function at the receiver side, and the input signal is constrained to have a fixed even moment. A variational approach is proposed to analyze the capacity of such a memoryless nonlinear MIMO channel whose output is perturbed by additive white Gaussian noise (AWGN). The optimal input distribution that achieves the channel capacity is derived through a methodology based on multidimensional Hermite polynomials. 2014 IEEE.

authors

• Qaraqe, Khalid
• Serpedin, Erchin

published proceedings

• IEEE COMMUNICATIONS LETTERS

author list (cited authors)

• Wang, X. u., Serpedin, E., & Qaraqe, K.

citation count

• 4

complete list of authors

• Wang, Xu||Serpedin, Erchin||Qaraqe, Khalid

publication date

• August 2014

publisher

• Institute of Electrical and Electronics Engineers (IEEE)  Publisher

published in

• IEEE Communications Letters  Journal

keywords

• Capacity
• Channel
• Mimo
• Nonlinear

Digital Object Identifier (DOI)

• 10.1109/LCOMM.2014.2334320

start page

• 1315

end page

• 1318

volume

• 18

issue

• 8

URL

• http%3A%2F%2Fdx.doi.org%2F10.1109%2Flcomm.2014.2334320