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Conference Paper
Building Height Effects on Path Loss for Low Antenna Links in Urban Street Grid Environments
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- Authors
- Juyul Lee, Hyun Kyu Chung, Myung Don Kim
- Issue Date
- 2013-08
- Citation
- Asia Pacific Wireless Communications Symposium (APWCS) 2013, pp.194-198
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper considers path loss characteristics for low antenna links in urban grid environments to account for mobile-to-mobile direct communication scenarios in cellular networks. Specifically, the effects of surrounding building height on path loss are examined with measurement campaigns. To emulate a direct communication link in urban grids, both a transmitter and a receiver are held at near-street levels, but located on separate streets to allow the link to consist of both line-of-sight (LoS) and non-line-of-sight (NLoS) components. Path loss measurements are collected at three different sites in Seoul distinguished by the average building heights and compared with the ITU-R standard models. The ITU-R models agree well with the measured data in mid-rise environments (8-10 m) but seem to over-estimate in high-rise environments. This phenomenon is explained by considering “virtual waveguide” effects, since the street groove can be seen to act as a waveguide. In particular, the LoS link of very high-rise environment (100 m or higher) exhibits better performance than that achieved in free space.
- KSP Keywords
- Building height, Cellular networks, Communication link, Direct Communication, High-rise, International telecommunications union radiocommunication(ITU-R), Line of sight(LOS), Mobile-to-Mobile(M2M), Non-line-of-sight(NLOS), Path loss characteristics, Urban street