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

TL;DR

This paper investigates how medium access control strategies influence spectral efficiency in large random spreading CDMA systems with linear receivers, demonstrating that MAC, combined with spreading and power control, can optimize performance and mitigate near-far effects.

Contribution

It introduces a joint analysis of MAC, spreading, and power allocation for spectral efficiency maximization in large CDMA systems with linear receivers.

Findings

MAC and power control significantly improve spectral efficiency.

Joint optimization reduces near-far interference effects.

Spectral efficiency can be maximized through combined MAC and spreading strategies.

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.