Abstract:Abstract-Femtocells are low-cost, user deployed base-stations that can alleviate indoor coverage problems. However as femtocell deployment density increases, inter-femtocell interference can severely limit their effectiveness. In this paper, we present a protocol for coordinated auto-configuration of femtocells in a UMTS environment. We use an iterated heuristic search (GRASP) to assign orthogonal CDMA spreading codes in the downlink to avoid interference between overlapping signals. The protocol is compared a… Show more
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