Globally Optimal Transmitter Placement for Indoor Wireless Communication Systems
2002) Globally Optimal Transmitter Placement for Indoor Wireless Communication Systems. Technical Report TR-02-17, Computer Science, Virginia Tech. (
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Abstract
In this paper, a global optimization technique is applied to solve the optimal transmitter placement problem for indoor wireless systems. An efficient pattern search algorithm ---DIRECT (DIviding RECTangles) of Jones, Perttunen, and Stuckman(1993)---has been connected to a parallel 3D radio propagation ray tracing modeler running on a 200-node Beowulf cluster of Linux workstations. Surrogate functions for a parallel WCDMA (wideband code division multiple access) simulator were used to estimate the system performance for the global optimization algorithm. Power converage and BER(bit error rate) are considered as two different criteria for optimizing locations of a specified number of transmitters across the feasible region of the design space. This paper briefly describes the undrelying radio propagation and WCDMA simulations and focuses on the design issues of the optimization loop.
Item Type: | Departmental Technical Report |
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Keywords: | Bit error rate, DIRECT algorithm,global optimazation, power coverage, ray tracing, surrogate function, transmitter placement, wideband code division multiple access |
Subjects: | Computer Science > Parallel Computation |
ID Code: | 604 |
Deposited By: | Administrator, Eprints |
Deposited On: | 02 August 2002 |