Effect of Multi-Streaming and Congestion Window of SCTP on Mobile Ad Hoc Network (MANET) Performance

Abstract

Stream Control Transmission Protocol (SCTP) is a connection-oriented transport layer protocol that provides reliable data transfer service an Internet Protocol (IP) network. The two main features of SCTP are multi-streaming and multi-homing. Multi-streaming allows multiple streams to send data; if one stream fails, only part of the data is lost and needs to be resent. Multi-homing is a feature that allows multiple IP addresses at one endpoint to ensure that failures do not bring the transmission to a total halt. This research was performed using Network Simulator (NS-2) to analyze multi-streaming and congestion window effect in Mobile Ad Hoc Network (MANET). Mobile ad hoc networks were formed dynamically by an autonomous system of mobile nodes that were connected via wireless links in absensce of network infrastructure or centralized administration. The metrics which evaluated in this simulation were throughput, delay, and packet loss ratio. As a result, delay value is reduced only when the addition of congestion window up to 2 * MTU. Increasing the above 2 * MTU will actually add value to the delay. SCTP quality was good enough for delay-sensitive application, because the delay was less than 4 seconds.