Abstract:
We investigate the overlay coding scheme as the capacity achieving multi user detection (MUD) technique, i.e., transmitting over non-orthogonal channels, in forward link ...Show MoreMetadata
Abstract:
We investigate the overlay coding scheme as the capacity achieving multi user detection (MUD) technique, i.e., transmitting over non-orthogonal channels, in forward link in multi-beam satellite systems with dense frequency reuse. The classic overlay coding scheme, uses the strongest co- channel interference (CCI) as extra source of information. The data intended for the target user is shared between the adjacent beams. The involved beams cooperate in jointly transmitting the data to the target user at the same time. Thus, the target user receives a signal containing the addition of the two data streams, i.e., as in a multiple access channel (MAC). Employing successive interference cancellation (SIC), both data could be recovered, resulting in higher throughput. However, in order to employ overlay coding in multibeam satellite systems, optimization strategies should be taken into consideration. Hence, we propose our advanced optimized overlay coding scheme, which considerably increases the spectral efficiency. We devise an information theoretic framework to compare different strategies by evaluating the aggregate data rate in the beam of interest.
Date of Conference: 04-07 June 2017
Date Added to IEEE Xplore: 16 November 2017
ISBN Information:
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- IEEE Keywords
- Index Terms
- Multibeam Satellite ,
- Multibeam Satellite Systems ,
- Data Rate ,
- Information Theory ,
- Data Streams ,
- Spectral Efficiency ,
- Aggregation Rate ,
- Target User ,
- Successive Interference Cancellation ,
- Co-channel Interference ,
- Multiple-access Channel ,
- Information-theoretic Framework ,
- Frequency Band ,
- Time Slot ,
- Term In Eq ,
- Frequency Bandwidth ,
- Analysis Of Analytes ,
- European Space Agency ,
- Minimum Mean Square Error ,
- Beam Center ,
- Signal-to-interference Ratio ,
- First Term In Eq ,
- Interference Mitigation ,
- Data Throughput ,
- User Terminals ,
- Information-theoretic Analysis ,
- Reference Beam ,
- Phase Offset ,
- Maximum Data Rate ,
- Intuitive Description
Keywords assist with retrieval of results and provide a means to discovering other relevant content. Learn more.
- IEEE Keywords
- Index Terms
- Multibeam Satellite ,
- Multibeam Satellite Systems ,
- Data Rate ,
- Information Theory ,
- Data Streams ,
- Spectral Efficiency ,
- Aggregation Rate ,
- Target User ,
- Successive Interference Cancellation ,
- Co-channel Interference ,
- Multiple-access Channel ,
- Information-theoretic Framework ,
- Frequency Band ,
- Time Slot ,
- Term In Eq ,
- Frequency Bandwidth ,
- Analysis Of Analytes ,
- European Space Agency ,
- Minimum Mean Square Error ,
- Beam Center ,
- Signal-to-interference Ratio ,
- First Term In Eq ,
- Interference Mitigation ,
- Data Throughput ,
- User Terminals ,
- Information-theoretic Analysis ,
- Reference Beam ,
- Phase Offset ,
- Maximum Data Rate ,
- Intuitive Description