Micronet has established strong capabilities in the design and development of networks, whether these are Broadband Wireless WIMAX (802.16), WIFI (802.15), Low Power Ad Hoc Zigbee Networks built on IEEE 802.15.4, Satellite VSAT Networks, Microwave Backbone Networks, etc.
A variety of tools are utilized, including Parametric Propagation Studies, Link Analysis, Cluster Analysis, and Coverage Analysis for specific base station sites.
Micronet uses a variety of parametric models in the development of network architectures, primarily to establish typical path lengths that correspond to desired levels of link performance. Each of these have limitations on frequency, minimum path length, minimum base station height, etc. A selection of popular models are listed here. Limitations on frequency range, minimum base station height and minimum propagation distances are noted for reference.
|Model||Frequency Range (MHz)||Minimum Base Station Height (m)||Minimum Distance (Km)||Comments|
|Free Space Loss||30 +|
|Hata||150 - 1500||30||1||Subscriber station heights from 1-10 m|
|Okumura||150 - 3000||30||1||Requires extrapolation from curves for specific frequencies|
|Cost 231||1500 - 2000||30||1|
|Cost 231 Walfisch-Ikegami||800 - 2000||30 for LOS component only||0.02||Has both LOS and NLOS Components|
|Wideband PCS Microcell||1900 MHz||3.7||1.7||Has both LOS and NLOS Components|