Mobile - Wireless Communications White Papers

Uplink User Capacity in a CDMA System With Hotspot Microcells: Effects of Finite Transmit Power and Dispersion

• Tags:
• mobile - wireless communications,
• capacity,
• base,
• coverage

Overview Wireless operators often install low-power hotspot microcell base stations to provide coverage to small high-traffic regions within a larger coverage area. These microcells enhance the user capacity and coverage area supported by the existing high-power macrocell base stations. This paper studies these gains for a two-tier Code Division Multiple Access (CDMA) network in which both the macrocells and microcells use the same set of frequencies. Specifically, it studies the effects, on the uplink capacity and coverage area, of transmit power constraints and variable power fading due to multipath.

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