updateatdrc.m

ofdm系统当中的接纳控制技术 程序当中有三种接纳控制算法的对比 都是基于ofdm系统的

% function DRC = UpdateATDRC( N,ATC2I,BandWidth,Eb2N0 )
function [DRC,QueueFront] = UpdateATDRC(ATTrafficType,ATDataArriveRate,SlotTime, N,ATQueue,ATQueueFront,ATDelay,ATDelayRequire)

DRC = zeros(1,N);
QueueFront = ATQueueFront;
MaxArrayLength = 5000;
global ATActive;
global ATQueueEnd;
for a = 1:N
    if ATTrafficType(a) == 4 %根据实时业务的包到达过程确定申请速率，只考虑video业务先
        if ATActive(1,a) == 1
            for packetIndex = QueueFront(a):ATQueueEnd(a)
                temp = mod(packetIndex-1,MaxArrayLength)+1;
                if ATQueue(temp,a) > 0
                    DRC(a) = ATQueue(temp,a) / SlotTime;%((ATDelayRequire(1,a)-ATDelay(packetIndex,a))*SlotTime);
    %                 DRC(a) = ATDataArriveRate(a);
                    QueueFront(a) = packetIndex;
                    break;
                end
            end
        end
    else
        DRC(a) = ATDataArriveRate(a);   %对于FTP业务，申请速率无限大，总是有数据要传输
    end
end