Abstract
In this paper, we compare two spatial multiplexing MIMO-OFDM downlink transmission schemes based on limited feedback: I. Per-chunk user scheduling; II. Zero-forcing receiver processing with per-antenna user scheduling. We use average net throughput and average sum rate as our comparison benchmarks. We show while Scheme II achieves a higher average sum rate over Scheme I, Scheme I has a greater average net throughput. For Scheme I, analytical derivations and a semi-analytical approach are used to obtain the optimum (net throughput maximizing) time-frequency chunk size.
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Eslami, M., Krzymień, W.A. (2009). Limited-Feedback Multiuser MIMO-OFDM Downlink with Spatial Multiplexing and Per-Chunk/Per-Antenna User Scheduling. In: Plass, S., Dammann, A., Kaiser, S., Fazel, K. (eds) Multi-Carrier Systems & Solutions 2009. Lecture Notes in Electrical Engineering, vol 41. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-2530-2_26
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DOI: https://doi.org/10.1007/978-90-481-2530-2_26
Publisher Name: Springer, Dordrecht
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