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Information Theoretic Analysis of LDS Scheme

Razavi, R, Imran, MA, Hoshyar, R and Wang, Y (2011) Information Theoretic Analysis of LDS Scheme IEEE Communications Letters, 15 (8). 798 - 800. ISSN 1089-7798

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Abstract

In this paper, the capacity region of Low Density Signature Multiple Access Channel (LDS-MAC) is calculated through information theoretic analysis. LDS Code Division Multiple Access (LDS-CDMA) uses spreading sequences of low density for spreading the data symbols in time domain. This technique benefits from a less complex Multiuser Detector (MUD) compared to conventional CDMA with optimum MUD; while keeping the performance close to the single user scenario for up to 200% loaded conditions. Also evaluated is the effect of different factors on the capacity of LDS MAC.

Item Type: Article
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Copyright 2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Symplectic Elements
Date Deposited: 05 Oct 2012 13:28
Last Modified: 23 Sep 2013 19:31
URI: http://epubs.surrey.ac.uk/id/eprint/710807

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