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Large system analysis of linear multistage parallel interference cancellation

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3 Author(s)
Trichard, L.G.F. ; Div. of Phys., Electr. & Comput. Eng., Yokohama Nat. Univ., Japan ; Evans, J.S. ; Collings, I.B.

In this paper, we derive an expression for the signal to interference-plus-noise ratio of a linear multistage parallel interference cancellation receiver. We focus on a linear multistage receiver which converges to the linear minimum mean-squared error receiver as the number of stages increases. The signal to interference-plus-noise ratio is given in terms of the system loading, the partial cancellation factor, the number of stages, and the signal-to. noise ratio. Our expression also allows a simple approximation for the bit error rate at each stage. Finally, we perform a numerical optimization to maximize the signal to interference-plus-noise ratio expression with respect to the partial cancellation factor of the resulting linear multistage receiver.

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Communications, IEEE Transactions on  (Volume:50 ,  Issue: 11 )