Title page for etd-0025117-103142


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URN etd-0025117-103142
Author Chun-te Lee
Author's Email Address No Public.
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Department Electrical Engineering
Year 2016
Semester 1
Degree Master
Type of Document
Language zh-TW.Big5 Chinese
Title Implementation of Dual-Mode Video Streaming Using UDP Tunnels in OAI-based LWA Networks
Date of Defense 2017-01-17
Page Count 96
Keyword
  • Dual-Mode
  • OAI
  • UDP Tunnel
  • PDCP
  • LWA
  • Abstract LTE-WLAN Aggregation (LWA) splits a stream or streams in the Packet Data Convergence Protocol (PDCP) layer. In this thesis, LTE-WLAN Aggregation Dual-Mode (LWA-DM) is implemented on an open-source platform - OpenAirInterface (OAI), and srsUE software is used in UE to reassemble packets in the PDCP layer. In the eNB of OAI platform, we implement two kinds of dual-mode stream transmission technologies and use video streaming to transmit. The first one is for a number of single streams, an entire stream is transmitted via LTE interface or via Wi-Fi interface. The second one is for a single stream, we split a single stream into two substreams, one substream over LTE and another substream over Wi-Fi interface. In these two technologies, PDCP layer interprets packet’s destination IP address to differentiate different streams. To transmit a stream from eNB to UE via the Wi-Fi interface, in PDCP layer, an UDP tunnel is built. In order to receive a stream from LTE and Wi-Fi interfaces at the same time, we must add a process thread at UE to receive packets over the Wi-Fi interface. In order to reassemble packets at the PDCP layer, we use two buffers to temporily store packets which came from the LTE interface and the Wi-Fi interface, respectively. After the implementation, we compare the throughput of eNB and UE, the load of eNB, and the average packet processing delay with and without LWA-DM.
    Advisory Committee
  • Chung-Nan Lee - chair
  • Zi-Tsan Chou - co-chair
  • Tsung-Chuan Huang - co-chair
  • Tsang-Ling Sheu - advisor
  • Files
  • etd-0025117-103142.pdf
  • Indicate in-campus at 3 year and off-campus access at 5 year.
    Date of Submission 2017-01-25

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