Sukumaran, Vineeth Bala and Mukherji, Utpal (2013) Tradeoff of average power and average delay for a point-to-point link with fading. In: 2013 National Conference on Communications (NCC), 15-17 Feb. 2013, New Delhi, India.
PDF
Natio_Conf_Commu_1_2013.pdf - Published Version Restricted to Registered users only Download (402kB) | Request a copy |
Abstract
We consider a discrete time system with packets arriving randomly at rate lambda per slot to a fading point-to-point link, for which the transmitter can control the number of packets served in a slot by varying the transmit power. We provide an asymptotic characterization of the minimum average delay of the packets, when average transmitter power is a small positive quantity V more than the minimum average power required for queue stability. We show that the minimum average delay will grow either as log (1/V) or 1/V when V down arrow 0, for certain sets of values of lambda. These sets are determined by the distribution of fading gain, the maximum number of packets which can be transmitted in a slot, and the assumed transmit power function, as a function of the fading gain and the number of packets transmitted. We identify a case where the above behaviour of the tradeoff differs from that obtained from a previously considered model, in which the random queue length process is assumed to evolve on the non-negative real line.
Item Type: | Conference Paper |
---|---|
Series.: | National Conference on Communications NCC |
Publisher: | IEEE |
Additional Information: | Copyright of this article belongs to IEEE. |
Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
Date Deposited: | 30 Jul 2013 12:07 |
Last Modified: | 30 Jul 2013 12:07 |
URI: | http://eprints.iisc.ac.in/id/eprint/46930 |
Actions (login required)
View Item |