A terminal for performing multiple access transmission suitable to a transmission path having varied characteristics includes a transmissionreception section, a control unit, a transfer management section, and an external interface section. The composite controller consists of a dynamic feedback linearizing inner loop cascaded with a robust linear feedback outer loop. The system comprises a first compounding apparatus and a sequential second compounding apparatus that shares a common shaft with the first compounding apparatus. This increases liquidity and tracks risks and associated values even as derivative instruments are created.