Controlling Packet Loss Using Tokens at the Network Edge

The simultaneous data transmission in internet [14] without packet loss very much depends upon congestion control [11]. A series of protocols and algorithms [15] have been introduced for controlling congestion. The network congestion plays a major role in data communication. The performance of the network [13] will be improved by controlling packet loss using congestion control algorithm. When the data packets are transmitted without intermediate station then packet loss leads to the retransmission of packets. It takes more time and increases load on network. A new protocol called STLCC (Stable Token Limited Congestion Control) is proposed for controlling packet loss using tokens. It integrates TLCC [6] and XCP [7] algorithms. TLCC uses the iterative algorithm to estimate the congestion level of its output link and the output rate of the sender is controlled according to the algorithm of XCP, so there is almost no packet loss at the congested link. Thus STLCC can measure the congestion level analytically, allocate network resources [3] according to the access link, and further keep the congestion control system stable.