access icon free Interference alignment performance in Gaussian interference channel

Interference alignment (IA) is a data transmission scheme that achieves maximum multiplexing gains in interference channel. This study investigates the theoretical sum rate for IA. By analysing both the asymptotic eigenvalues distribution and the magnitude of the effective channel after interference cancellation in IA, a closed-form of sum rate expression is derived for Gaussian interference channel. Numerical results show that the closed-form results nearly coincide with that derived from numerical results of IA.

Inspec keywords: interference suppression; Gaussian channels; eigenvalues and eigenfunctions; data communication

Other keywords: asymptotic eigenvalues distribution; Gaussian interference channel; Interference alignment; data transmission scheme; sum rate expression; closed-form expression

Subjects: Information theory; Electromagnetic compatibility and interference; Linear algebra (numerical analysis)

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