3D beamforming effect for backhaul link in time-division relaying

Nakao, Ryota; Mashino, Jun; Suyama, Satoshi; Okumura, Yukihiko; Otsuka, Hiroyuki

doi:10.1109/icufn.2017.7993858

Cited by 4 publications

(1 citation statement)

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“…Three-dimensional (3D) beamforming has been also considered for enhancing system performance, which can adapt the antenna beam individually for each user equipment (UE) in the elevation domain, i.e., UE-specific elevation beamforming. The 3D beamforming directs the transmitted carrier power toward the target UE, thereby promises to potentially increase the received signal-to-interference plus noise ratio (SINR) while directing less interference to adjacent cells/sectors and other UEs [6,7]. The use of SCE, HetNet, and 3D beamforming and so on enhances the introduction of a higher-order modulation scheme, since these technologies can increase the received SINR.…”

Section: Introductionmentioning

confidence: 99%

Transmission performance of OFDM-based 1024-QAM in multipath fading conditions

2018

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Higher-order modulation is promising technique of 5th-generation mobile systems to increase data rate within a limited bandwidth. This paper presents the transmission performance of the orthogonal frequency division multiplexing (OFDM)-based 1024-QAM in multipath fading propagation conditions by link-level simulation, as well as under static propagation condition. The BER performance is investigated for two types of propagation models, i.e., "extended pedestrian A" and "extended vehicular A" models, specified by 3GPP as parameters of the coding rates. The SNR penalties are also described with respect to the case of AWGN with phase error to meet a BER of 10 −2 for OFDM-based 1024-QAM. Using these results, we validate the application of OFDM-based 1024-QAM to mobile communication systems.

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Section: Introductionmentioning

confidence: 99%