On the Separability of Ergodic Fading MIMO Channels: A Lattice Coding Approach

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dc.contributor.ORCID0000-0002-3751-0165 (Nosratinia, A)
dc.contributor.VIAF105575689 (Nosratinia, A)
dc.contributor.authorHindy, Ahmed
dc.contributor.authorNosratinia, Aria
dc.contributor.utdAuthorHindy, Ahmed
dc.contributor.utdAuthorNosratinia, Aria
dc.date.accessioned2019-08-30T20:21:49Z
dc.date.available2019-08-30T20:21:49Z
dc.date.created2018-07-12
dc.descriptionFull text access from Treasures at UT Dallas is restricted to current UTD affiliates (use the provided Link to Article).
dc.description.abstractThis paper addresses point-to-point communication over block-fading channels with independent fading blocks. When both channel state information at the transmitter (CSIT) and receiver (CSIR) are available, most achievable schemes use separable coding, i.e., coding independently and in parallel over different fading states. Unfortunately, separable coding has drawbacks including large memory requirements at both communication ends. In this paper a lattice coding and decoding scheme is proposed that achieves the ergodic capacity without separable coding, with lattice codebooks and decoding decision regions that are universal across channel realizations. We first demonstrate this result for fading distributions with discrete, finite support whose sequences are robustly typical. Results are then extended to continuous fading distributions, as well as multiple-input multiple-output (MIMO) systems. In addition, a variant of the proposed scheme is presented for the MIMO ergodic fading channel with CSIR only, where we prove the existence of a universal codebook that achieves rates within a constant gap to capacity for finite-support fading distributions. The gap is small compared with other schemes in the literature. Extension to continuous-valued fading is also provided.
dc.description.departmentErik Jonsson School of Engineering and Computer Science
dc.identifier.bibliographicCitationHindy, A., and A. Nosratinia. 2018. "On the Separability of Ergodic Fading MIMO Channels: A Lattice Coding Approach." IEEE Transactions on Communications 66(12):5990-6002, doi:10.1109/TCOMM.2018.2855191
dc.identifier.issn0090-6778
dc.identifier.issue12
dc.identifier.urihttps://hdl.handle.net/10735.1/6840
dc.identifier.volume66
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.relation.urihttp://dx.doi.org/10.1109/TCOMM.2018.2855191
dc.rights©2018 IEEE
dc.source.journalIEEE Transactions on Communications
dc.subjectData encryption (Computer science)
dc.subjectErgodic theory
dc.subjectRadio—Transmitters and transmission—Fading
dc.subjectLattices
dc.subjectMIMO systems
dc.subjectReceivers
dc.subjectCrystal lattices
dc.titleOn the Separability of Ergodic Fading MIMO Channels: A Lattice Coding Approach
dc.type.genrearticle

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