Abstract: In this paper, we propose a relay selection amplify-and-forward (RS-AF) protocol in general bidirectional relay networks with two sources and N relays. In the proposed scheme, the two ...

It was designed by one of the early founders and Vitalik Buterin, using two rotated summation symbols (∑) to form a diamond-like shape. This simple, symmetrical design eventually evolved. After ...

The expression after the second equal sign was missing the summation symbol and the normalization factor, and the subscript for size instar used n instead of i.