Most protocols use layered architectures to some degree, layers that you can manipulate to achieve your optimal design. Optimizing the placement of these layers, you can achieve efficient code ...

For example, a microstrip over an adjacent ground return plane (GRP) or a stripline adjacent to a GRP or a power trace (or plane) adjacent to a GRP. For example, locating multiple signal layers ...

The people who routinely post the best examples will rack up points as people vote for their work. But, Hanlon says, that's not the real reason people have historically contributed to Stack Overflow.