Title :
Tier-selection algorithms with multi-class traffic in CDMA hierarchical cellular systems
Author :
Wang, Li-Chun ; Liao, Ching-Yu ; Lin, Yi-Liang ; Chang, Chung-Ju
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan
Abstract :
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.
Keywords :
code division multiple access; microcellular radio; radiofrequency interference; telecommunication traffic; CDMA; data user; hierarchical cellular system; hotspot microcell service; interference reduction; macrocell service; multiclass traffic; relative pilot based scheme; tier selection algorithm; traffic load balancing; voice user; Data engineering; Electronic mail; Frequency; Interference; Macrocell networks; Microcell networks; Multiaccess communication; Telecommunication traffic; Wireless cellular systems; World Wide Web;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207809
