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Preliminary Network Design

The network design should meet a predetermined set of performance and coverage requirements. During the multiple phases of the design process, the RF engineering team requires support from the network sales and marketing, site acquisition, construction, equipment/interconnect, and network operations groups.

The network design process begins with the preliminary design. This is a "first cut" of the design. An overall network topology is designed based on an initial automated site layout, determined by demographic analysis and site number constraints. Specific sites are chosen based on coverage objectives, demand analysis, availability of friendly site candidate locations, and any zoning issues discovered and presented by the site acquisition team.

Dimensioning the network to handle the system's traffic requirements is also critical to providing reliable service. Traffic projections can be determined based on input from demographic data combined with marketing research information on the targeted customer base. This allows engineers to perform demand analyses to determine the proper dimensioning of equipment (number of channels and type of equipment) to provide reliable service without over designing the network.

At a very coarse level, census tract data on population, business employees, households, etc. can be used to determine projected busy-hour demand based upon parameters such as penetration rate, minutes of usage (MOU), and traffic model. In a fixed broadband system, the topology of the interconnected hubs and CPEs, along with the tie-ins to the PSTN or ISP are used to help determine the capacities required.

Comsearch offers Full-Service Wireless Network Engineering to assist with the design and implementation of your system.

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