Spectral efficiency and optimal medium access control of random access systems over large random spreading CDMA

  • Authors:
  • Yi Sun

  • Affiliations:
  • Department of Electrical Engineering, City College of the City University of New York

  • Venue:
  • IEEE Transactions on Communications
  • Year:
  • 2009

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Abstract

This paper analyzes the spectral efficiency as a function of medium access control (MAC) for large random spreading CDMA random access systems that employ a linear receiver. It is shown that located at higher than the physical layer, MAC along with spreading and power allocation can effectively perform spectral efficiency maximization and near-far mitigation.