Joint rate and power control algorithms for wireless networks

Authors:
A. Subramanian;A.H. Sayed
Affiliations:
Dept. of Electr. Eng., Univ. of California, Los Angeles, CA, USA;-
Venue:
IEEE Transactions on Signal Processing
Year:
2005

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Abstract

There is a fundamental tradeoff between power consumption, data transmission rates, and congestion levels in a wireless network. These three elements influence the performance of rate and power control strategies, and they need to be coordinated judiciously. This paper proposes dynamic rate and power control algorithms for distributed wireless networks that also account for the congestion levels in a network. The design is pursued by formulating state-space models with and without uncertain dynamics and by determining control signals that help meet certain performance criteria (such as robustness and desired levels of signal-to-interference ratio). Simulation results illustrate the performance of the proposed control schemes.