A System for Buffer Management in Voice Communication

The transmission of voice and video packets through Internet suffers from delay which is needed to be minimized at the time of PlayOut. The packets are received from the network with a varying delay. This delay is called jitter. To surmount the mentioned problems, a system is designed in this work. This technique handles packets in the buffer at the receiver end. The receiver receives packets from the network with a varying delay. To manage delay at the receiver side, the packets are divided into chunks by the system. Size of the chunk is 50 packets. All chunks are of the same size. In case the last chunk is not filled due to less number of packets, then dummy bits are added to the chunk so that the chunk reaches to the maximum negotiated value. This method is called bit padding. The proposed system is simulated in OPNET Modeler 14.0 and compared with the normal flow of voice traffic.