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Low-Complexity Partitioned-Spreading CDMA System with Multistage MMSE Reception

Shi, Zhenning; Reed, Mark

Description

In this paper, we propose a low-complexity multistage filter for the partitioned-spreading CDMA (PS-CDMA). The proposed method embodies a MMSE filter that operates on the soft output of interference cancellation. Extrinsic information on the partitioned symbol is exchanged between the MMSE filter and the partitioned-spreading APP detector to improve the system performance. It is shown via variance evolution the signal-to-noise ratio of this novel technique achieves that of the single-user...[Show more]

dc.contributor.authorShi, Zhenning
dc.contributor.authorReed, Mark
dc.coverage.spatialLas Vegas USA
dc.date.accessioned2015-12-07T22:24:49Z
dc.date.createdApril 3-6 2006
dc.identifier.isbn1424402700
dc.identifier.urihttp://hdl.handle.net/1885/20996
dc.description.abstractIn this paper, we propose a low-complexity multistage filter for the partitioned-spreading CDMA (PS-CDMA). The proposed method embodies a MMSE filter that operates on the soft output of interference cancellation. Extrinsic information on the partitioned symbol is exchanged between the MMSE filter and the partitioned-spreading APP detector to improve the system performance. It is shown via variance evolution the signal-to-noise ratio of this novel technique achieves that of the single-user channel even for heavily loaded systems. It also outperforms IDMA by a fraction of dB to a few dBs, for a variety of system loads.The complexity of the proposed system is much lower that of its counterparts for conventional CDMA, which makes it a viable alternative for future 3G or beyond 3G systems.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE Inc)
dc.relation.ispartofseriesIEEE Wireless Communications and Networking Conference (WCNC 2006)
dc.subjectKeywords: APP detectors; MMSE reception; Multistage filter; Communication channels (information theory); Computational complexity; Signal to noise ratio; Code division multiple access
dc.titleLow-Complexity Partitioned-Spreading CDMA System with Multistage MMSE Reception
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2006
local.identifier.absfor100502 - Broadband and Modem Technology
local.identifier.ariespublicationu3357961xPUB15
local.type.statusPublished Version
local.contributor.affiliationShi, Zhenning, College of Engineering and Computer Science, ANU
local.contributor.affiliationReed, Mark, College of Engineering and Computer Science, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage6
dc.date.updated2015-12-07T09:28:11Z
local.identifier.scopusID2-s2.0-34250368095
CollectionsANU Research Publications

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