Asymptotic capacity of static multiuser channels with an unknown number of users

Abstract

Comunicació presentada al 11th International Symposium on Wireless Personal Multimedia Communications (WPMC '08), celebrat els dies 8, 9, 10 i 11 de setembre de 2008 a Lapland, Finlàndia, i organitzat pel Centre for Wireless Communications i el National Institute of Information and Communications Technology.We examine a multiple-access communication system in which multiuser detection is performed without knowledge of the number of active interferers. Using a statistical-physics approach, we compute the single-user channel capacity and spectral efficiency in the large-system limit.This work was supported by the Spanish Ministry of Education/nand Science under Project TEC2006- 01428/TCM, and by the STREP project No. IST-026905 (MASCOT) within the 6th framework program of the European Commission