| A Comparative Analysis of Mobile WiMAX™ Deployment Alternatives in the Access Network |
| Monday, 09 June 2008 08:01 | |
|
A basic overview of the performance tradeoffs for different base station antenna configurations is provided. The performance tradeoffs between frequency bands ranging from 2300 MHz to 3800 MHz are presented along with a comparison of channel bandwidths. For all of the analyses the same hypothetical metropolitan area is used as a deployment venue. The demographics for the metropolitan area are representative of many mid-sized cities in developed countries. An approach for estimating the data density requirements to meet specific customer performance expectations is presented. This is especially important for the delivery of broadband services in the higher population density areas which, for most deployment alternatives, will be limited by capacity requirements rather than by range. The metric used for providing a quantified comparison of the varied deployment scenarios are the number of base stations required to meet the capacity and coverage requirements for the different demographic regions throughout the metropolitan area. Other aspects associated with a complete WiMAX™end-to-end network deployment are not addressed in this paper. However, since the access portion of the network comprising the WiMAX base station equipment, the base station infrastructure, and the base station backhaul network is generally the dominant factor in the total end-to-end network investment, a comparison of base station requirements alone provides a good insight as to the economic trade-offs for any of the varied deployment options.  |
Tác giả: Doug Gray
