Error Exponents for Nakagami-m Fading Keyhole MIMO Channels

Provided by: Queen's University
Topic: Mobility
Format: PDF
Along with the channel capacity, the error exponent is one of the most important information theoretic measures of reliability, as it sets ultimate bounds on the performance of communication systems employing codes of finite complexity. In this paper, the authors derive the closed-form expressions of Gallager's random coding and expurgated error exponents for Nakagami-m fading keyhole Multiple-Input Multiple-Output (MIMO) channels under the assumption that there is no Channel-State Information (CSI) at the transmitter and perfect CSI at the receiver. From the derived analytical expressions, they get insight into an elementary tradeoff between the communication reliability and information rate of the Nakagami-m fading keyhole MIMO channels.

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