The challenge at millimeter-wave frequencies is that the propagation characteristics approximates to that of light. In a nonline-of-sight scenario, when even the mobile station (MS) is near the base station, the attenuation may be tens of dBs due to shadowing and obstructions. Increasing the number of base stations reduces such effects but at the expense of cost and complexity. An attractive method to mitigate such shadowing effects is to use dedicated active or passive relay stations. Proposed here is a network infrastructure in the form of a 3D pyramid. It consists of a single access point with four (but not restricted to) active relays operating in parallel in a medium sized room of 400 m/sup 2/. Simulation is performed in a sophisticated 3D ray tracing tool. Human shadowing densities of 1 person/400 m/sup 2/ up to 1 person/1 m/sup 2/ are set to test the robustness of such a system. Results show that comparing to a normal system with just a single access point either mounted on the ceiling or at the same level as a MS; the pyramid relaying system provides superior coverage and capacity
|Translated title of the contribution||A robust 60 GHz wireless network with parallel relaying|
|Title of host publication||International Conference on Communications (ICC)|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||3528 - 3532|
|Publication status||Published - Jun 2004|
|Event||International Conference on Communications - Paris, France|
Duration: 20 Jun 2004 → 24 Jun 2004
|Conference||International Conference on Communications|
|Period||20/06/04 → 24/06/04|
Bibliographical noteConference Proceedings/Title of Journal: IEEE International Conference on Communications, 2004. ICC '04
Rose publication type: Conference contribution
Sponsorship: The authors wish to extend their thanks and appreciation particularly to Prof. J.P. McGeehan and Yukio Kamatani of Toshiba Research Europe for their sponsorship and support of this work.
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