University of Ottawa - Carleton University
Ottawa-Carleton Institute for Computer Science (OCICS) Presentation
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October 5, 2012 @ 10:00 a.m.
Analyzing operational modes of RLC for video streaming over LTE
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Speaker: Tappata Nisita
Location: LMX 360 (Lamoureux) |
ABSTRACT
Rapid growth in technology has increased the use of mobile devices such as mobile phones, tablets, etc., consequently increased video streaming via these devices. Use of video through broadband traffic has significantly increased in the last decade making access to better data connectivity and video services crucial for users. This demand for improved video connectivity and enhanced quality of experience from users led network providers to choose LTE technology. In order to better understand streaming video through LTE networks, it is essential to focus on the radio link layer (RLC), which is responsible for audio and video transmissions.
This lets us take a closer look at the radio link layer by focusing on video transmission to clearly understand the use of Acknowledged mode (AM), Transparent Mode (TM) and Unacknowledged Mode (UM) in detail. The RLC layer is between the MAC and PDCP layer, which are used for data traffic and control.
The purpose of this presentation is to explain the pros and cons of each mode in detail, as well as why one mode is conventionally favored over another mode. This presentation will also suggest simple improvements based on the reproduced controlled real time simulations to improve video transmission without delay and packet loss.
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