Propagation model for the HVAC duct as a communication channel

Никитин, П.В.; Stancil, Daniel D.; Cepni, A.G.; Tonguz, O.K.; Xhafa, A.E.; Brodtkorb, D.

doi:10.1109/tap.2003.811491

Cited by 35 publications

(40 citation statements)

References 30 publications

(41 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A typical frequency response is graphed in Fig. 2 for 1.07 m SDP with d i ≈ 20 m. As discussed in [4], the {2.4, 2.41,. . .…”

Section: Measurement Campaignmentioning

confidence: 97%

“…Historical research conducted on communication through underground structures focused on understanding radio frequency propagation in coal mines, railroad, auto, subway tunnels and heating, ventilation and air conditioning (HVAC) ducts [1][2][3][4][5]. In [6] the authors have proposed a Multimode model based on geometrical Optical (GO) ap-proach to analyze the electromagnetic field distribution inside the tunnel waveguide.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Mode Based Approach for Characterizing Rf Propagation in Conduits

Howitt¹,

Khan²

2010

PIER B

View full text Add to dashboard Cite

Abstract-We propose a mode based approach for developing a parametric model to characterize RF propagation in conduits. The model considers a conduit as a lossy waveguide and defines the total received power as the sum of powers excited in propagating modes. The model's parameters are estimated from both the physical properties of the conduit material and an empirical data set. Underground conduits have significant value as wireless communication channels for condition based monitoring within the conduit. An enabler for this wireless sensor network application is based on characterizing the expected coverage range of wireless transceivers operating in the 2.4 GHz ISM band. Previous studies on modeling RF propagation in underground conduits have focused on conduits with diameters larger than 1.05 m. This motivated our measurement campaign to collect empirical data from underground conduits with varying diameters from 0.30 m to 1.37 m. The empirical data is used to predict the mode coupled powers which are model parameters that are analytically intractable. We observe that the proposed model provides a good estimate of received power in terms of contribution from dominant propagating modes.

show abstract

“…A typical frequency response is graphed in Fig. 2 for 1.07 m SDP with d i ≈ 20 m. As discussed in [4], the {2.4, 2.41,. . .…”

Section: Measurement Campaignmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

A Mode Based Approach for Characterizing Rf Propagation in Conduits

Howitt¹,

Khan²

2010

PIER B

View full text Add to dashboard Cite

show abstract

“…기에는 미흡한 면이 있다 [1] . 이 외에도 원통형 닥트 의 지연 분산에 관한 연구나 [3] , 닥트를 통신 채널로 모델링하여 용량을 분석한 [4] 연구 등이 있는데, 이것 Table 1.…”

Section: 나 균일한 단면 크기를 대상으로 측정한 결과라서 실제 건물에 설치되어 있는 닥트 망과는 거리가 멀 며 내부unclassified

“…Daniel D. Stancil이 300 mm 크기의 원통형 닥트에서 각 모드별 전파 특성을 해석하였다 [1] . 또한, Ozan K. Tonguz, Daniel D. Stancil 등이 직경 300 mm 크기의 HVAC(Heating, Ventilation & Air Conditioning)덕트 내부에서 전파의 송수신 특성을 시험하였다 [2] .…”

unclassified

Measurement of Propagation Characteristic of HVAC Ducts within Buildings for Wireless Networks

Yun¹,

Chun²

2012

The Journal of Korean Institute of Electromagnetic Engineering

View full text Add to dashboard Cite

In this paper, we measure and analyze propagation characteristic of heating, ventilation, and air conditioning(HVAC) ducts within buildings for wireless networks. We analyze the duct structures, implement the feeders exciting propagating modes, and simulate the excitation characteristic. We measure the propagation characteristic of HAVC ducts at 2.45 GHz WiFi band and compare it with that of LOS and partitioned office environments. We propose the design method of wireless network using HVAC ducts based on our results.

show abstract

“…The model presented in [9] was used to generate channel responses between individual pairs of transmit and receive antennas. Channel responses from 2.4-2.5 GHz were generated for antenna spacings from 20 to 200 m, in increments of 2 cm.…”

Section: Hvac Systemmentioning

confidence: 99%