Effect of Using Header Compression Method in Point to Point Protocol in Communication System

Abstract

Most of the header information remains constant over the life-time of the connection. For PPP connection many fields are constant and others change with small values. To initiate compression of the headers of a packet stream, a full header is transmitted over the link. The compressor and decompressor store most fields of this full header as reference. The reference consists of the fields of the headers whose values are constant and thus need not be sent over the link at all, or change little between consecutive headers so that it uses fewer bits to send the difference from the previous value compared to sending the absolute value.
To improve interactive response time and to decrease the header overhead on the system we used the method of Compressing Protocol Headers in Point-to-Point Protocol (PPP). The simulated communication protocols have been tested between two PCs and measuring the time delay, throughput and utilization.
Keywords: (PPP) Point to Point Protocol, (UDP) user datagram protocol, (IP) Internet Protocol, (LCP) Link Control Protocol,(NCP) Network Control Protocol, (FCS) Frame Check Sequence, (MRU) Maximum Receive Unit.