Browsing by Author "Ratajczak, P."

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  • Massive Multiple Input Massive Multiple Output for 5G Wireless Backhauling
    (2017) Phan-Huy, D. -T.; Ratajczak, P.; D'Errico, R.; Järveläinen, J.; Kong, D.; Haneda, K.; Bulut, B.; Karttunen, A.; Beach, M.; Mellios, E.; Castaneda, M.; Hunukumbure, M.; Svensson, T.
     A4 Artikkeli konferenssijulkaisussa
    In this paper, we propose a new technique for the future fifth generation (5G) cellular network wireless backhauling. We show that hundreds of data streams can be spatially multiplexed through a short range and line of sight "massive multiple input massive multiple output" (MMIMMO) propagation channel thanks to a new low complexity spatial multiplexing scheme, called "block discrete Fourier transform based spatial multiplexing with maximum ratio transmission" (B-DFT-SM-MRT). Its performance in real and existing environments is assessed using ray-tracing tools and advanced antenna models. 1.6 kbits/s/Hz of spectral efficiency is attained, corresponding to 80% of Singular Value Decomposition performance, with a transmitter and a receiver that are 200 and 10,000 times less complex, respectively.