Optimum Asymptotic Multiuser Efficiency of Pseudo-Orthogonal Randomly Spread CDMA

Simple item page
dc.creatorShental, Ori
dc.creatorKanter, Ido
dc.date2006-04-21
dc.date.accessioned2026-07-07T08:16:29Z
dc.date.available2026-07-07T08:16:29Z
dc.descriptionA $K$-user pseudo-orthogonal (PO) randomly spread CDMA system, equivalent to transmission over a subset of $K'\leq K$ single-user Gaussian channels, is introduced. The high signal-to-noise ratio performance of the PO-CDMA is analyzed by rigorously deriving its asymptotic multiuser efficiency (AME) in the large system limit. Interestingly, the $K'$-optimized PO-CDMA transceiver scheme yields an AME which is practically equal to 1 for system loads smaller than 0.1 and lower bounded by 1/4 for increasing loads. As opposed to the vanishing efficiency of linear multiuser detectors, the derived efficiency is comparable to the ultimate CDMA efficiency achieved for the intractable optimal multiuser detector.
dc.descriptionWIC 27th Symposium on Information Theory in the Benelux, 2006
dc.identifierhttps://arxiv.org/abs/cs/0604083
dc.identifierhttp://arxiv.org/abs/cs/0604083
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/133798
dc.subjectInformation Theory
dc.titleOptimum Asymptotic Multiuser Efficiency of Pseudo-Orthogonal Randomly Spread CDMA
dc.typetext

Files

Collections

arXiv