Abstract
This paper deals with optimized Multiple-Input Multiple Output (MIMO) channel estimation and ensuing information throughput conveyed by pilot-based multi-antenna systems affected by both spatially colored Multiple Access Interference (MUI) and errors in the available channel estimates. The architecture of the Minimum Mean Square Error (MMSE) MIMO channel estimator is derived and the related analytical conditions for the optimal design of space-time training sequences are provided. Afterwards, closed form expressions for the maximum information throughput sustained by the considered systems for Gaussian distributed input signals are given and, then, a novel powers’ allocation algorithm for the asymptotical achievement of the system capacity is developed. Considerations about optimized space-division MAC strategies are also provided.
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Baccarelli, E., Biagi, M. (2003). Optimized Power Allocation and Signal Shaping for Interference-Limited Multi-antenna “Ad Hoc” Networks. In: Conti, M., Giordano, S., Gregori, E., Olariu, S. (eds) Personal Wireless Communications. PWC 2003. Lecture Notes in Computer Science, vol 2775. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39867-7_12
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DOI: https://doi.org/10.1007/978-3-540-39867-7_12
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