Techniques are provided for decoding tail-biting convolutional codes by using information within the received data stream that traditionally has not been used or been available to the convolutional decoder, e. The system utilizes a sensed ground speed of the harvesting machine, a sensed feeder and header drive speed, and a speed control input from an operator, for controlling a feeder and header drive control for controllably varying the ratio of the feeder and header speed to the ground speed as a function of the operator input and the sensed ground speed. The method further comprises taking a congestion control action using identified flows andor detected congestion in at least part of the TN. Each ballast unit includes a frame set and a ballast element. The illusion of seamless network connectivity is provided by having these access points coordinate with a core server to perform user authentication, device address assignment, and handoff services.