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Multilevel Coding for the Full-Duplex Decode-Compress-Forward Relay Channel

Entropy, 2017
The Decode-Compress-Forward (DCF) is a generalization of Decode-Forward (DF) and Compress-Forward (CF). This paper investigates conditions under which DCF offers gains over DF and CF, addresses the problem of coded modulation for DCF, and evaluates the ...
Ahmed Abotabl, Mohamed Fadel Shady
exaly   +3 more sources

On the Optimal Compressions in the Compress-and-Forward Relay Schemes [PDF]

IEEE Transactions on Information Theory, 2013
Submitted to IEEE Transactions on Information ...
Liang-Liang Xie
exaly   +4 more sources

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Compute-compress-and-forward

2015 IEEE International Symposium on Information Theory (ISIT), 2015
Compute-and-forward (CF) can harness interference in a multi-hop relay network by allowing a relay to decode and forward a combination of source messages. However, the total forwarding rate of the relays belonging to one hop may far exceed the total information rate of the sources, which implies information redundancy and spectral inefficiency.
Yihua Tan, Xiaojun Yuan 0002
openaire   +1 more source

Compress-and-Forward via Multilevel Coding

2019 IEEE International Symposium on Information Theory (ISIT), 2019
We investigate the performance of discrete (coded) modulations in the full-duplex compress-and-forward relay channel using multilevel coding. We numerically analyze the rates assigned to component binary codes of all levels. LDPC codes are used as the component binary codes to provide error protection.
Heping Wan, Anders Høst-Madsen, Aria Nosratinia   +2 more
openaire   +1 more source

When is compress-and-forward optimal?

2010 Information Theory and Applications Workshop (ITA), 2010
In many known examples where compress-and-forward (CF) for relay networks is capacity achieving, it is only trivially so, i.e., it falls back to hashing without quantization. A potentially better strategy is to decode as much as possible and to compress the residual information, i.e., a combination of decode-and-forward (DF) and CF (Cover and El Gamal ...
Si-Hyeon Lee, Sae-Young Chung
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A novel decoding structure in compress-and-forward systems

Proceedings of the 6th International Wireless Communications and Mobile Computing Conference, 2010
A novel joint decompression and forward error correction (FEC) decoding structure for a compress-and-forward relay system is proposed. We notice the possibility of iterative processing between the decompressor and the FEC decoder for the original source information and propose a turbo-like structure to allow interaction and extrinsic information ...
Yinan Qi, Reza Hoshyar, Rahim Tafazolli
openaire   +1 more source

Compressing IP forwarding tables for fun and profit

Proceedings of the 11th ACM Workshop on Hot Topics in Networks, 2012
About what is the smallest size we can compress an IP Forwarding Information Base (FIB) down to, while still guaranteeing fast lookup? Is there some notion of FIB entropy that could serve as a compressibility metric? As an initial step in answering these questions, we present a FIB data structure, called Multibit Burrows-Wheeler transform (MBW), that ...
Gábor Rétvári, Zoltán Csernátony, Attila Korösi, János Tapolcai, András Császár, Gábor Enyedi, Gergely Pongrácz   +6 more
openaire   +1 more source

Generalized compress-and-forward strategy for relay networks

2008 IEEE International Symposium on Information Theory, 2008
In this paper, we present a new generalization of the well- known Compress-and-Forward strategy for relay networks. We propose an offset decoding at destination, where destination considers an ordered partition of relays and decodes information of any partition with the help of information from prior partitions.
Mohammad Hossein Yassaee, Mohammad Reza Aref   +1 more
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Compressed-and-forward: Compressive sensing for cooperative communication

2012 International Symposium on Intelligent Signal Processing and Communications Systems, 2012
Cooperative communication has been shown that it is an effective way to achieve spatial diversity in order to combat the user-outage caused by effects fading channel. Except for amplify-and-forward (AF) and decode-and-forward (DF), compressed-and-forward (CF) is also an efficient forwarding strategy.
Chia-Hung Yeh, Yu-Liang Lin, Cheng-Chih Liu, Wan-Jen Huang   +3 more
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An achievable rate for relay networks based on compress-and-forward strategy

IEEE Communications Letters, 2010
Compress-and-Forward (CF) is a well-known coding strategy proposed for relay channels. Few works which were done about the generalization of the CF strategy to the relay networks, are based on irregular encoding/successive decoding. In this paper, a new generalization of the CF strategy to the relay networks based on regular encoding/backward decoding ...
Mohammad Reza Aref, Leila Ghabeli, Sadaf Salehkalaibar   +2 more
exaly   +2 more sources