Sphinx: A Transport Protocol for High-Speed and Lossy Mobile Networks
Sphinx: A Transport Protocol for High-Speed and Lossy Mobile Networks
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Sphinx:高速有损移动网络的传输协议
DOI:
10.1109/ipccc47392.2019.8958769
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发表时间:
2019-10
期刊:
影响因子:
--
通讯作者:
Kai Zheng
中科院分区:
文献类型:
--
作者:
Junfeng Li;Dan Li;Wenfei Wu;K.K.Ramakrishnan;Jinkun Geng;Fanzhao Wang;Kai Zheng
Modern mobile wireless networks have been demonstrated to be high-speed but lossy, while mobile applications have more strict requirements including reliability, goodput guarantee, bandwidth efficiency, and computation efficiency. Such a complicated combination of requirements and conditions in networks pushes the pressure to transport layer protocol design. We analyze and argue that few of existing network transport layer solutions are able to handle all these requirements. We design and implement Sphinx to satisfy the four requirements in high-speed and lossy networks. Sphinx has (1) a proactive coding-based method named semi-random LT codes for loss recovery, which estimates packet loss rate and adjusts the redundancy level accordingly, (2) a reactive retransmission method named Instantaneous Compensation Mechanism (ICM) for loss retransmission, which compensates the lost packets once actual loss exceeds the estimation, and (3) a parallel coding architecture, which leverages multi-core, shared memory and kernel-bypass DPDK. Prototype and evaluation show that Sphinx outperforms TCP and other coding solutions significantly in microbenchmarks across all four requirements, and improves the performance of applications such as video streaming and block data transfer.
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DOI:
10.1145/3167132.3167438
发表时间:
2018-04
期刊:
Proceedings of the 33rd Annual ACM Symposium on Applied Computing
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作者:
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期刊:
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