Physical-layer Rateless Codes for Wireless Channels
Summary
RATELESS codes were initially developed to achieve efficient transmission in erasure channels. The initial work on rateless codes has mainly been limited to erasure channels with the primary application in multimedia video streaming. Recently, the design of rateless codes for wireless channels has attracted significant attention. Rateless codes are particularly beneficial to wireless transmissions because, in contrast to traditional fixed-rate coding schemes, the transmitter potentially does not need to know the channel state information before sending its encoded symbols, and the receiver can retain a resilient decoding performance. This property is of particular importance in the design of codes for time varying wireless channels. It thus has a wide spectrum of applications in various modern wireless communication networks. A major drawback of the existing physical-layer rateless codes is the notably high error floor. Another major drawback of the existing physical-layer rateless codes is that different wireless channel conditions need different check node degree distributions to achieve the near capacity performance.
Supervisor(s)
Professor Yonghui Li, Professor Branka Vucetic
Research Location
Electrical and Information Engineering
Program Type
Masters/PHD
Synopsis
In this project, we will develop novel rateless encoding approach to tackle these two problems by designing new encoding structure and optimizing it based on robust EXIT analytical tools.
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Keywords
rateless codes, fountain codes, raptor codes, physical-layer, wireless communications, EXIT, LDPC, graph codes
Opportunity ID
The opportunity ID for this research opportunity is: 1750
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Other opportunities with Professor Branka Vucetic
- Interference Cancellation in Co-working WLANs
- Precoded multiuser MIMO and packet scheduling
- Cooperative transmission in MIMO relay broadcast channels
- Iterative channel estimation for high mobility MIMO-OFDM systems
- Dynamic spectrum access for wireless multi-hop cognitive radio networks
- Cooperative communications for future wireless networks
- Distributed network channel coding for wireless sensor networks
- Game theory based transmission strategies for cognitive radio
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- Millimeter Wave Gigabit Wireless Network Design for 5th Generation (5G) Communications
- Physical Layer Security
- Demand Side Management in Future Smart Grid: Control, Communication, and Security
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- Large-scale Machine-to-Machine Communications Networks
- Design of Network Coding Schemes for Next Generation of Wireless Cellular Systems
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