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An effective and scalable multiuser architecture for the base station receiver

The flexibly of the multiuser detection in wireless receivers is an important consideration for communication system. But with the increasing number of customers, the receiver architecture in the base stations transceiver should also be configurable according to the number of users and channels per user. Hence, the receiver architecture should be able to meet varying needs such as scalability, flexibly and effectiveness. To achieve the different needs, a RAKE receiver and a path searcher have been designed and implemented. In this paper, we evaluate the performance of our CodeRAKE receiver in the multiuser applications, and propose new path searcher architecture for the base station receiver, intended to reduce area consumption and improve scalability. The proposed approach relies on parallel processing of each code over all the multiple propagation paths on a highly regular architecture.