NDLI: Relay-mapper aided multi-user lattice coding for the multiple-access relay channel

Content Provider	IEEE Xplore Digital Library
Author	Chung-Pi Lee Shih-Chun Lin Hsuan-Jung Su Poor, H.V.
Copyright Year	2013
Description	Author affiliation: Dept. of Electron. & Comput. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan (Shih-Chun Lin) \|\| Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan (Chung-Pi Lee; Hsuan-Jung Su) \|\| Dept. of Electr. Eng., Princeton Univ., Princeton, NJ, USA (Poor, H.V.)
Abstract	This paper considers the multi-antenna multiple access relay channel (MARC), in which multiple users transmit messages to a common destination with the assistance of a relay. In a variety of MARC settings, the dynamic decode and forward (OOF) protocol is very useful due to its outstanding rate performance. However, the lack of good structured codebooks so far hinders practical applications of OOF for MARC. In this work, a new structured MARC code, one-to-one relaymapper aided multiuser lattice coding (O-MLC), is proposed. It is shown that, in order to approach the rate performance obtained previously by using an unstructured code book with maximum-likelihood decoding, it is crucial to use a new Kstage coset decoder instead of the one-stage decoder proposed in previous works. However, if O-MLC is decoded with the one-stage decoder only, it can still achieve the optimal OOF diversity-multiplexing gain tradeoff when the signaI-to-noise ratio is high. Simulation results show that the proposed coding scheme outperforms existing schemes in terms of outage probabilities.
Sponsorship	IEEE Inf. Theory Soc.
Starting Page	1
Ending Page	6
File Size	1277145
Page Count	6
File Format	PDF
ISBN	9781467352376
e-ISBN	9781467352390
e-ISBN	9781467352383
DOI	10.1109/CISS.2013.6552341
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-03-20
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Measurement Encoding Power capacitors Antennas
Content Type	Text
Resource Type	Article

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