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Up to now, the most concurrent multi-path transport (CMT) schemes mainly aim at the issues caused by forward transmission like data reordering at receiver side and neglect the studies on impact of reverse paths' transmission delays. This paper proposes a SACK scheduling mechanism for the CMT schemes to accelerate data transmission in multi-homing environment, in this scheme, the most SACK chunks will...
SIP-based instant messaging (IM) is currently a quite hot issue in the SIP world. Two approaches, pager-mode IM and session-mode IM, have been explored for implementation. This paper provides an in-depth analysis of the first method through an example, and makes improvement to the second by presenting specific signaling and media messages. Solutions to security problems are also discussed in detail...
This paper introduces a cross-layer strategy on how to safely enable the corruption-aware transport protocols in the next generation wireless communications without disabling the link layer 32-bit CRC checksum mechanisms. Simulation results show that the proposed scheme can help the corruption-aware transport protocols significantly improve their performance compared to that of the existing schemes.
Forward error correction (FEC) scheme has dual side-effects on the throughput performance for the satellite networks. One is to consume some extra bandwidth to send redundant information, and the other is to disable the corruption-aware TCP variants to differentiate the corruption events from the loss events. This may result in significant throughput jitter while satellite channel is in an unsteady...
Unlike in wired networks, non-congestion losses will result in significant performance degradation in wireless networks. Thus some corruption-aware transport protocols have been presented to focus on the packet loss caused by corruption. Unfortunately, the corruption-aware transport protocols cannot work in realistic networks up to now, since the corrupted packets have been discarded by the link layer...
In recent years, a lot of performance evaluation methodologies and tools have been developed within disparate research communities for the purposes of evaluation, design, and model reduction. Among those as a free and powerful evaluation tool, ns2 has attracted more and more users who focus on developing/designing various network protocols. On the other hand, stream control transmission protocol (SCTP)...
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