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User cooperation, whereby multiple users share their antennas and transmit to a common destination in a collaborative manner, has been shown to be an effective way to achieve spatial diversity. We propose in this paper, a strategy to minimize the total power in a decode-and-forward (DF) multiuser , multi-relay cooperative uplink, such that each user(More)
—In recent years, multiuser detection has gained significant notoriety as a potential advanced enabling technology for the next generation of CDMA systems. Currently, due to the limitations of the conventional correlation receiver, the capacity of a single cell using CDMA is limited by self-interference and is subject to the near–far problem. To overcome(More)