2016
DOI: 10.4218/etrij.16.2716.0018
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Mobile Hotspot Network System for High-Speed Railway Communications Using Millimeter Waves

Abstract: We propose a millimeter wave (MMW)-based mobile hotspot network (MHN) system for application in high-speed railways that is capable of supporting a peak backhaul link throughput of 1 Gbps per train at 400 km/h. The MHN system can be implemented in subways and high-speed trains to support passengers with smart devices and provide access to the Internet. The proposed system can overcome the inherent high path loss in MMW through system designs and high antenna gains. We present a simulation of the system perform… Show more

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Cited by 31 publications
(9 citation statements)
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“…The delay spread is inversely proportional to the coherence bandwidth. In an OFDM system, the delay spread is an important parameter and the subcarrier spacing should be smaller than the coherence bandwidth [26]. The parameters of the OFDM signal, including subcarrier spacing, symbol length, and cyclic prefix length, should be carefully determined to reduce the effects of Doppler shifts and phase noise.…”
Section: B Experimental Resultsmentioning
confidence: 99%
“…The delay spread is inversely proportional to the coherence bandwidth. In an OFDM system, the delay spread is an important parameter and the subcarrier spacing should be smaller than the coherence bandwidth [26]. The parameters of the OFDM signal, including subcarrier spacing, symbol length, and cyclic prefix length, should be carefully determined to reduce the effects of Doppler shifts and phase noise.…”
Section: B Experimental Resultsmentioning
confidence: 99%
“…Beamforming functionality is implemented with digitally controlled phase‐shifters. The Korean backhaul link developed to show a Gigabits‐per‐second moving hot‐spot is based on a preexisting architecture .…”
Section: Overall Architecture Of 5gchampion and Use‐casesmentioning
confidence: 99%
“…The basic architecture of the KR BRU testbed is similar to that of the mobile hot spot network (MHN) illustrated in [13], and entails two main components. The first, on the network side, is made of the MHN NodeBs (mNBs), consisting of MHN digital units (mDUs), and the MHN radio units (mRUs) (see Figure 7).…”
Section: B Mmwave Backhaul Radio Unit (Bru)mentioning
confidence: 99%