Patent ID: 8423070
Filing Date: 2013-04-16
Classification: H04W

Abstract:
1. A method for determining an optimal throughput of a communications channel in a highly mobile wireless environment, the method comprising: (a) selecting a power control measure; (b) determining a throughput of the communications channel using a throughput model of the communications channel and the selected power control measure, wherein the throughput model is based on a probability of a packet error averaged over a packet fade, and wherein the probability of the packet error averaged over the packet fade is a function of the selected power control measure; and (c) repeating steps (a) and (b) for another power control measure; and (d) determining the optimal throughput as a maximum one of the throughputs determined for each of the selected power control measures, wherein the throughput model is: wherein W is the random variable representing TCP window size, T 0 the timeout, W max is the maximum window size, b represents the number of packets that are acknowledged by a received ACK and W u is the unconstrained window size, {circumflex over (Q)}(w) represents the probability that a loss in a window of size w is a timeout (TO), and p is the probability of packet error averaged over the packet fade.