Performance comparison of multipath TCP data transferring in bottleneck and disjoint-path wired networks connected with Wi-Fi

Abstract

This paper presents a performance comparison of multipath TCP (MPTCP) data transmission with different packet sizes in two wired network models, Bottleneck (BN) and Disjoint-Path (DP), connected with two Wi-Fi base stations. Using network simulator version 2 (NS-2), the effects of the wired network link parameters, wireless channel, and Wi-Fi end receiver conditions to MPTCP transferring are simulated. Then throughput at wireless receiver is used for both network models performance comparing. Simulation results show that DP network has higher throughputs than BN network when large packet size is used but the maximum throughputs are limited by links connected to Wi-Fi base stations. In addition, throughputs are decreased faster in DP model than BN model when delay time increases in wired links. Also, throughputs are decreased faster in DP than BN when wireless channel is worse and when receiver is further or moving away faster from base stations. Finally, DP and BN models has the same low throughput when there is very high delay time in wired network or when the wireless receiver is far or move away faster from base stations.