User capacity of a power controlled CDMA system with multiple base stations

Pramod Viswanath, Venkat Anantharam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The user capacity of the uplink of a multiple cell synchronous CDMA system is analyzed along with power and channel allocation. For the most part, attention is focused on the situation when the signature sequences are chosen from an orthogonal sequence set. The user capacity of the system is the maximum number of users per unit processing gain admissible in the system such that each user has its quality of service (QoS) requirement (expressed in terms of its desired signal-to-interference ratio) met. The user capacity depends on the path gains of the users to the base stations and the comparison of the user capacity per unit processing gain with the maximum number of admissible users in a single channel system allows us to describe (in terms of the path gains) scenarios when the user capacity of the system can be increased by having more processing gain. We conclude by conjecturing the user capacity region when the signature sequences are not constrained and the base station estimates the users' symbols with matched filter and linear MMSE receiver structures.

Original languageEnglish (US)
Title of host publicationProceedings of the 1999 IEEE Information Theory and Communications Workshop
EditorsFrancis Swarts, Jacobus Swarts
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages21-23
Number of pages3
ISBN (Electronic)0780352688, 9780780352681
DOIs
StatePublished - 1999
Externally publishedYes
Event1999 IEEE Information Theory and Communications Workshop - Kruger National Park, South Africa
Duration: Jun 25 1999 → …

Publication series

NameProceedings of the 1999 IEEE Information Theory and Communications Workshop

Other

Other1999 IEEE Information Theory and Communications Workshop
Country/TerritorySouth Africa
CityKruger National Park
Period6/25/99 → …

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Computational Theory and Mathematics
  • Software

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