An Adaptive Bandwidth Estimation Mechanism for SCTP over Wireless Networks

A wireless link is generally characterized by high transmission errors, random interference and a varying latency. The erratic packet losses usually lead to a curbing of flow segments on the SCTP association and thus limit SCTP's performance. To improve the performance of SCTP protocol under high-speed environments over wireless networks, a bandwidth estimation mechanism and a per-stream-based error recovery mechanism is applied to modified SCTP protocol. The simulation results confirmed that the proposed scheme can improve the performance of SCTP over wireless networks.