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Power Allocation through Revenue-Maximising Pricing on a CDMA Reverse Link Shared by Energy-Constrained and Energy-Sufficient Heterogeneous Data Terminals

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3 Author(s)
Virgilio Rodriguez ; Inst. fur Nachrichtentechnik, Univ. Karlsruhe (TH), Karlsruhe ; Friedrich Jondral ; Rudolf Mathar

We perform market-oriented management of the reverse link of a CDMA cell populated by data terminals, each with its own data rate, channel gain, willingness to pay (wtp), and link-layer configuration, and with energy supplies that are limited for some, and inexhaustible for others. For both types, appropriate performance indices are specified. A terminal pays in proportion to its fraction of the total power at the receiver, which directly determines its signal-to-interference ratio (SIR), and hence its performance. Hence, a terminal can individually choose its optimal power fraction without knowing the choices made by others. The network sets for each terminal an individual price that drives the terminal to the "revenue per Watt" maximiser. An optimal link-layer configuration can be identified through this analysis. Distinguishing features of our model are: (i) the simultaneous consideration of both limited and unlimited energy supplies, (ii) the performance metrics utilised (one for each type of energy supply), (iii) the generality of our physical model, and (iv) our focus on the fraction of total power at the receiver allocated to a terminal.

Published in:

Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th

Date of Conference:

26-29 April 2009