Computer Science Technical Reports
CS at VT

S4W: Globally Optimized Design of Wireless Communication Systems

He, J. and Verstak, A. and Watson, L.T. and Stinson, C.A. and Ramakrishnan, N. and Shaffer, C.A. and Rappaport, T.S. and Anderson, C.R. and Bae, K. and Jiang, J. and Tranter, W.H. (2002) S4W: Globally Optimized Design of Wireless Communication Systems. Technical Report TR-02-16, Computer Science, Virginia Tech.

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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 coverage 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 underlying radio propagation and WCDMA simulations and focuses on the design issues of the optimization loop.

Item Type:Departmental Technical Report
Keywords:bit error rate, DIRECT algorithm, global optimization, power coverage, ray tracing, transmitter placement, wideband code division multiple access
Subjects:Computer Science > Parallel Computation
ID Code:603
Deposited By:Administrator, Eprints
Deposited On:11 July 2002