Coverage Analysis for Cellular Systems With Multiple Antennas Using Decode-and-Forward Relays
Jian Zhao, Ingmar Hammerström, Marc Kuhn, Armin Wittneben, Markus Herdin, and Gerhard Bauch
IEEE Vehicular Technology Conference (VTC) Spring 2007, Dublin, Ireland, Apr. 2007.
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Placing relays around the base station (BS) to assist
wireless communication is an effective way of extending coverage
in cellular systems. This paper provides a quantitative analysis
of coverage extension by using decode-and-forward (DF) relays.
To describe the relation between the number of relays and the
coverage range extension, we introduce the concept of coverage
angle and coverage range. We provide analytical upper and lower
bounds for the coverage range in the cellular system for any given
coverage angle. By means of simulations, we show the tightness
of our analytical approach.
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