Limits of digital unit-remote radio unit distance and cell coverage induced by time division duplex profile in mobile WiMAX systems

作者：Kim Sung Man^*

来源：International Journal of Communication Systems, 2013, 26(2): 250-258.

DOI：10.1002/dac.1356

• mobile WiMAX
• cell coverage
• DU-RU distance
• time division duplex

We analyze the theoretical limits of three characteristics in the mobile WiMAX base station composed of DU (digital unit) and RU (remote radio unit): (i) the maximum distance between DU and RU; (ii) the maximum number of cascading RUs that can be connected to a DU; and (iii) cell coverage from RU. These theoretical limits are induced by the time division duplex profile of the IEEE802.16 standard. With the typical parameters of the mobile WiMAX system, the maximum allowable distance between DU and RU is 7.4 km and the cell coverage from RU is 8.3 km for 10-MHz channel BW. This analysis will be a helpful practical guideline for designing mobile WiMAX base stations and planning mobile WiMAX cells.

• 出版日期2013-2