Systems and methods for establishing transmission format parameters between communication devices are provided. The assembly includes a strap that extends diagonally along the front of the user, over one shoulder of the user, and diagonally across the back of the user, wherein the strap has end portions that come together near the person’s midsection and attach, via a mechanism, to an item of apparel worn by the user. A first current source selectively generates a first bias current for the first opamp during the charging phase and a second bias current that is not equal to the first bias current during the integrating phase. The computer network includes both secured computers and unsecured computers, which are associated with secured nodes and unsecured nodes, respectively. Accordingly, a mathematical formulation and finite element analysis are provided to define the optimal height of the castellated substrate.