Power control in fading broadcast channels with random arrivals and QoS constraints

Mustafa Ozmen, Mustafa C Gursoy

Research output: Chapter in Book/Entry/PoemConference contribution

1 Scopus citations


Throughput regions of fading broadcast channels with random data arrivals in the presence of quality-of-service (QoS) requirements is studied when power control is employed at the transmitter. Two source models with random arrivals, namely discrete Markov source and Markov fluid source, are considered. It is assumed that superposition coding with power control is performed at the transmitter with interference cancellation at the receivers. By utilizing the effective capacity of time-varying wireless transmission channels and effective bandwidth of random arrivals, the maximum average arrival rates that can be supported in the fading broadcast channel with QoS guarantees are identified and the throughput is characterized. Optimal power control policies that maximize the weighted combination of the average arrival rates are investigated in the two-user case. In particular, optimality conditions are determined and an algorithm for optimal power control is proposed for different source arrival models. Impact of source burstiness, power adaptation, the use of different transmission strategies (e.g., superposition coding and time-division multiplexing) on the throughput regions and sum-rates are investigated.

Original languageEnglish (US)
Title of host publication2014 IEEE Global Communications Conference, GLOBECOM 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Print)9781479935116
StatePublished - Feb 9 2014
Event2014 IEEE Global Communications Conference, GLOBECOM 2014 - Austin, United States
Duration: Dec 8 2014Dec 12 2014


Other2014 IEEE Global Communications Conference, GLOBECOM 2014
Country/TerritoryUnited States


  • Fading broadcast channels
  • Markov arrivals
  • power control
  • QoS constraints
  • throughput regions

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Communication


Dive into the research topics of 'Power control in fading broadcast channels with random arrivals and QoS constraints'. Together they form a unique fingerprint.

Cite this