In this paper, we investigate several tier selection strategies in a hierarchical cellular system where a hotspot microcell service data users demanding high capacity, and a macrocell services low capacity voice users. A new "relative pilot based (RPB)" tier selection scheme is proposed to achieve the goals of balancing traffic load between a macrocell and a microcell, and reducing the interference between a macrocell and a microcell. The simulation results show that the RPB scheme improves both the blocking performance and outage performance with both data and voice users compared to traditional service based tier selection scheme.
|Number of pages||5|
|Journal||IEEE Vehicular Technology Conference|
|State||Published - 1 Sep 2003|
|Event||57th IEEE Semiannual Vehicular Technology Conference (VTC2003) - Jeju, Korea, Republic of|
Duration: 22 Apr 2003 → 25 Apr 2003
- Hierarchical cellular system
- Tier selection