- Title
- The half-duplex AWGN single-relay channel: full decoding or partial decoding?
- Creator
- Ong, Lawrence; Johnson, Sarah J.; Kellett, Christopher M.
- Relation
- ARC.DP0877258 and ARC.DP1093114
- Relation
- IEEE Transactions on Communications Vol. 60, Issue 11, p. 3156-3160
- Publisher Link
- http://dx.doi.org/10.1109/TCOMM.2012.081512.110166A
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2012
- Description
- This paper compares the partial-decode-forward and the complete-decode-forward coding strategies for the half-duplex Gaussian single-relay channel. We analytically show that the rate achievable by partial-decode-forward outperforms that of the more straightforward complete-decode-forward by at most 12.5%. Furthermore, in the following asymptotic cases, the gap between the partial-decode-forward and the complete-decode-forward rates diminishes: (i) when the relay is close to the source, (ii) when the relay is close to the destination, and (iii) when the SNR is low. In addition, when the SNR increases, this gap, when normalized to the complete-decode-forward rate, also diminishes. Consequently, significant performance improvements are not achieved by optimizing the fraction of data the relay should decode and forward, over simply decoding the entire source message.
- Subject
- achievable rate; decode-forward; half duplex; partial decode-forward; relay channel
- Identifier
- http://hdl.handle.net/1959.13/1311744
- Identifier
- uon:22270
- Identifier
- ISSN:0090-6778
- Rights
- (c) 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works
- Language
- eng
- Full Text
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