Equilateral Technologies Inc. The latest solutions developed by ETI engineers for automated coverage optimization in wireless networks has been published in the July 2008 edition of the IEEE Transactions on Vehicular Technology.
The paper, “Automated Wireless Coverage Optimization with Controlled Overlap”, by D. Fagen and P. Vicharelli from Equilateral Technologies, and J. Weitzen, from the University of Massachusetts – Lowell, highlights a new method of controlling cell overlap while simultaneously maximizing coverage and minimizing interference. This leads to considerable improvements in network quality, cost, coverage and capacity.
The method represents a novel approach in that it focuses on those network parameters that can be represented by continuous variables, and applies classical optimization methods. It uses a new figure of merit for coverage- the coverage coefficient. In a test case with a network of 36 sites, this new method led to an average coverage improvement of approximately 47%. By determining the desired network coverage with a controlled amount of overlap, this method automatically decreases interference and thus improves network performance parameters such as C/I, Eb/Io, SINR, and BER.