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—The use of sets of multiple spreading sequences per user in multicarrier code-division multiple-access (CDMA) is investigated. Each user is assumed to have a distinct set of spreading sequences, with a different spreading sequence for each carrier in each user's set. We show that when these sets of sequences are chosen to be the mutually orthogonal (MO)(More)
In this paper, we propose a mobile patient system using common approach sensor platform called the wireless based patient sensor platform (WSP, sensor node) which has remote access capability. The goals of the WSP are to establish: standard sensor node (system on module), a common software .The proposed platform architecture (sensor node) offers(More)
Recently, a training-based vector channel estimation scheme has been proposed for single-user CDMA systems with aperiodic spreading codes. In this paper, we extend it to the reverse link of multiuser MIMO CDMA system. We also use the generalized MMSE multiuser detector to suppress multiuser interference so then we can get good initial vector channel(More)