Enhanced Multipath TCP to Improve the Mobile Device Network Resiliency
Hilal Hudan Nuha, Fazmah Arif Y., Hendrawan Hendrawan · International Journal of Computing and Digital Systems · 2024
Mobile devices consume a significant amount of internet traffic, and they can utilize multiple interfaces like Wi-Fi and cellular networks to share traffic between networks, known as a multi-homed host.This approach enhances the resilience of the internet connection by allowing traffic to flow through multiple paths.The Multipath Transmission Control Protocol (MPTCP) supports this type of connection, but a fairness issue emerges when a multi-path host shares a bottleneck link with regular single-path hosts.To deal with this issue, this paper proposes an enhanced MPTCP (eMPTCP) that uses a throughput adjustment to estimate bandwidth based on TCP Westwood+ congestion control.By decreasing each subflow traffic on the multi-path, the proposed eMPTCP achieves fairness in shared links.The simulation conducted using network simulator 2 (ns2) represents the mobile conditions of mobile data air interface, and the results demonstrate that eMPTCP outperforms standard congestion control in achieving connection resilience.