Average Power Constraint

Definition (Average Power Constraint)

The most commonly used cost function is the power cost function t(x)=x2t(x)=x^{2}which results in average power constraint PP each sent channel input nn-tuple xn=(x1,,xn)x^{n}=(x_{1},\ldots,x_{n}): 1ni=1nxi2P\frac{1}{n}\sum\limits_{i=1}^{n}x_{i}^{2}\le PWe assume our cost constraint is the above moving forward.

Linked from