Title :
Delay and energy constrained dynamic power control
Author :
Wang, Heng ; Mandayam, Narayan B.
Author_Institution :
Wireless Inf. Network Lab., Rutgers Univ., Piscataway, NJ, USA
Abstract :
In this paper, we introduce total energy constraints on transmission and study dynamic power control on a time varying channel under delay constraints. We consider a block fading channel modeled as a finite state Markov chain and we study binary (on/off) power control schemes for variable rate systems. We search for the optimal transmission policy that maximizes the minimum value of the expected sum of rates over the total communication window. The optimal policies are shown to be threshold rules on the received signal strength and the residual battery energy
Keywords :
Markov processes; data communication; delay estimation; fading channels; minimax techniques; mobile radio; optimal control; power control; telecommunication control; time-varying channels; variable rate codes; binary power control; block fading channel; communication window; delay constraints; dynamic power control; energy constraints; finite state Markov chain; mobile data traffic; on off power control; optimal transmission policy; received signal strength; residual battery energy; threshold rules; time varying channel; variable rate systems; Batteries; Delay effects; Fading; Laboratories; Power control; Power system modeling; Resource management; Transmitters; Web and internet services; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE
Conference_Location :
San Antonio, TX
Print_ISBN :
0-7803-7206-9
DOI :
10.1109/GLOCOM.2001.965696
