Patent ID: 7586990
Filing Date: 2009-09-08
Classification: H04L

Abstract:
1. A method for allocating a plurality of subcarriers to a plurality of subscriber devices in a wireless network, the method comprising: identifying a power for a transmission on each subcarrier of the plurality of subcarriers; assigning a dynamic weight to at least one subscriber device of the plurality of subscriber devices at each decision instance of the transmission corresponding to the at least subscriber device, wherein the assignment of the dynamic weight is based on queue length requirements of one or more flows of the at least one subscriber device; determining a set of optimum values for the power based on the dynamic weight, wherein the set of optimum values are determined under a set of constraints for each subcarrier of the plurality of subcarriers, and comprising optimizing a rate vector V where η t represents the collective (of all users) channel state at time t, R(η t ) is the rate region at time t, v i is a rate for the subscriber device S i and w i , is the dynamic weight assigned to v i ; and allocating at least one subcarrier of the plurality of subcarriers to at least one subscriber device based on at least one optimum value of the set of optimum values.