Optimal sequences and sum capacity of synchronous CDMA systems

Pramod Viswanath, Venkat Anantharam

Research output: Contribution to journalArticlepeer-review

272 Scopus citations


The sum capacity of a multiuser synchronous CDMA system is completely characterized in the general case of asymmetric user power constraints-this solves the open problem posed in [7] which had solved the equal power constraint case. We identify the signature sequences with real components that achieve sum capacity and indicate a simple recursive algorithm to construct them.

Original languageEnglish (US)
Pages (from-to)1984-1991
Number of pages8
JournalIEEE Transactions on Information Theory
Issue number6
StatePublished - 1999
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences


  • Capacity region
  • CDMA
  • Optimal signature sequences
  • Sum capacity


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