Propagation Measurements for Indoor Wireless Communications at 350/650 GHz

Zhao, Heng; Wei, Leihao; Jarrahi, Mona; Pattie, Gregory

doi:10.1109/irmmw-thz.2018.8509956

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…Furthermore, the band is expected to support profound applications in short distances preferably in the LoS environment. Such a requirement motivated investigation of the channel across several THz frequency bands in common indoor spaces such as office rooms [61], [65], [66], [72], [96], [110], [116], [118], [120]- [123], [127], [137], [138], desktops [36], [59], [110], [113]- [115], [117]- [119], [124]- [126], conference rooms [33], [76], [116], [120], [122], data centers [74], [129]- [131], and in some not-so-common spaces like factory buildings [73], shopping malls [109], [112], and airports check-in halls [112], lecture rooms [128], to name a few using different channel sounders. Some dynamic channel characterization for UMi [80]- [84] and different railway communication channels [88]- [90], [139] have also been investigated using a TDC-based sounder and in an urban environment using a VNA-based sounder [55], [134]- [136].…”

Section: E Discussionmentioning

confidence: 99%

“…The frequency-domain sounders on the other hand are mainly developed using a Vector Network Analyzer (VNA). Another frequency-domain channel sounder comprising of a combination of a signal generator and a signal analyzer (SGSA) was earlier thought to be suited for the narrowband (NB) channel measurement [31], [32] but is also currently adopted for THz measurements [33]- [36]. A flow diagram of the classification of the sounders available for THz measurements is shown in Fig.…”

Section: Thz Band Channel Soundersmentioning

confidence: 99%

“…Although this frequency domain channel sounder is deemed more suited for narrowband channel measurements it has been successfully used in several measurement campaigns for the THz band [33], [35], [36], [56]. The sounder known for its simplicity and ease of setup does require an extensive amplifier and multiplier chain (AMC) and filter(s) to transmit signals in the THz band.…”

Section: Channel Sounder Using Sgsamentioning

confidence: 99%

“…6. Wideband unmodulated multitone signals with constant envelope such as Newman phase multitone (NPM) [11] or multi-carrier orthogonal frequency division multiplexing (OFDM) waveforms are usually used as sounding signals by the SG [33], [36]. The signals from the SG and the LO are combined inside the Tx extender which also comprises a chain of frequency multipliers, one or more amplifiers, FIGURE 7: Architecture of the Novel in-house Channel Sounder filter(s), and a mixer not necessarily in the same order to transport the baseband signal to the THz band.…”

Section: Channel Sounder Using Sgsamentioning

confidence: 99%

“…Due to their suitability for narrowband (NB) measurements, SGSA-based sounders have not been extensively used for measurement campaigns in the THz band. In [33] a measurement campaign was conducted at 350/650 GHz in a typical indoor scenario of a conference room. The path loss and reflection losses were characterized from the obtained data as a function of transmitting and receiving angles.…”

Section: Measurement Using Other Soundersmentioning

confidence: 99%

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THz Channel Sounding and Modeling Techniques: An Overview

Ghosh

Kim

2023

IEEE Access

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As the world warms up to the idea of millimeter wave (mmWave) communication and fifth generation (5G) mobile networks, realization slowly dawns that the data rate, latency, throughput, and other performance metrics that are used to assess a new wireless communication technology will not be enough to support the demands of envisioned futuristic applications. Thus there is an eagerness to further climb up the frequency ladder to use the large swathes of available spectrum in the 0.1 − 10 THz band which is expected to act as the key technology enabler to fulfill the requirements of the sixth generation (6G) wireless communication and possibly even beyond. Channel measurement and modeling are crucial to the design and deployment of future wireless communication systems and researchers across the world are putting their best foot forward to accelerate the process. The present article presents comprehensive assimilation of research efforts in the context of THz channel sounding. A detailed overview of the current channel sounding techniques is first introduced followed by their relevance to THz band channel measurement. An in-house novel channel sounder developed for THz band measurement is also briefly introduced in this context. The paper next provides elaborate dissemination of various measurement campaigns in the band of interest followed by the modeling techniques that are available in the literature and are being adopted for the THz band. Post the description of different challenges and future research directions in the context of sounding, measurement, and modeling the article is concluded.

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