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General stability conditions in wireless broadcast channels

: Chan, Z.; Wunder, G.


Institute of Electrical and Electronics Engineers -IEEE-:
46th Annual Allerton Conference on Communication, Control, and Computing : Urbana-Champaign, IL, USA, 23-26 Sept. 2008
Piscataway, NJ: IEEE, 2008
ISBN: 1-4244-2925-0
ISBN: 978-1-4244-2925-7
Annual Allerton Conference on Communication, Control, and Computing <46, 2008, Urbana-Champaign/Ill.>
Fraunhofer HHI ()
broadcast channel; channel capacity; radiocommunication; wireless channel

Stability has become an important performance measure for wireless communication systems. In this paper general conditions for stability in broadcast channels are derived. It is shown that for any mean arrival rate inside the ergodic capacity region the system is stable when the applied scheduling policy complies with the conditions presented in the main results. In this case the policy is so-called throughput-optimal and the results in the paper provide a convenient way either to design or to verify the throughput-optimal policies. The applicability of the results is shown along with some examples.