On the transport capacity of a multiple access Gaussian channel

Müller R (2005)


Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2005

Pages Range: 191-195

Event location: Oulu

ISBN: 0780382757

URI: https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=28244459664&origin=inward

Abstract

We address the problem of maximizing the transport capacity of a wireless network, defined as the sum, over all transmitters, of the products of the transmission rate with a reward r(x), which is a function of the distance x separating the transmitter and its receiver. When r(x) = x, this product is measured in bps × meters, and is the natural measure of the usefulness of a transmission in a multihop wireless ad hoc network. We first consider a single transmitter-receiver pair, and determine the optimal distance between the two that maximizes the rate-reward product, for reward functions of the form r(x) = x and when the signal power decays with distance according to a power law. We then calculate the scheme that maximizes the transport capacity in a multiple access network consisting of a single receiver and a number of transmitters, each placed at a fixed distance from the receiver, and each with a fixed power constraint. We conclude by showing that when the per-transmitter power constraints are substituted with a single constraint on the sum of the powers, the maximum transport capacity and the power allocation scheme that achieves it can be found by solving a convex optimization problem. © 2004 IEEE.

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How to cite

APA:

Müller, R. (2005). On the transport capacity of a multiple access Gaussian channel. In Proceedings of the 2004 International Workshop on Wireless Ad-Hoc Networks (pp. 191-195). Oulu.

MLA:

Müller, Ralf. "On the transport capacity of a multiple access Gaussian channel." Proceedings of the 2004 International Workshop on Wireless Ad-Hoc Networks, Oulu 2005. 191-195.

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