Integrated link adaptation and power control for wireless IP networks

Kin K. Leung*, Li-Chun Wang

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

10 Scopus citations


In this paper, we prove that the problem of maximizing data throughput by adaptive modulation and power control while meeting packet error requirements is NP-complete. A heuristic algorithm for integrated link adaptation and power control is thus proposed to achieve specified error rates and to improve overall throughput for real-time applications in wireless IP networks. The algorithm divides terminals into groups according to their signal path gains, and periodically adapts transmissions based on the required error rates, actual error statistics and average transmission power of each terminal group. Transmission power is adjusted by an enhanced Kalman-filter method to ensure successful reception. Simulation results reveal that the algorithm consistently delivers the specified error performance, and attempts to maximize network throughput for a wide range of parameter settings.

Original languageEnglish
Pages (from-to)2086-2092
Number of pages7
JournalIEEE Vehicular Technology Conference
StatePublished - 1 Jan 2000
EventVTC2000: 51st Vehicular Technology Conference 'Shaping History Through Mobile Technologies' - Tokyo, Jpn
Duration: 15 May 200018 May 2000

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