Title :
Performance study of multi-channel access schemes in two-tier CDMA cellular systems
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan
Abstract :
According to Wu and Chung (1996), system performance and capacity degrade due to co-channel interference between microcells and macrocells in hierarchical structure if the same channel is used. In order to avoid co-channel interference, different channels are assigned for macrocells and microcells. This paper proposes three multi-channel access schemes in which the same channel can be used in the macrocell and hot-spot (or microcell) simultaneously. Using the proposed multi-channel access schemes, we can avoid co-channel interference between a macrocell and hot-spot and provide more capacity
Keywords :
cochannel interference; code division multiple access; microcellular radio; radio access networks; capacity; co-channel interference; hierarchical structure; hot-spot; macrocells; microcells; multi-channel access schemes; performance study; two-tier CDMA cellular systems; Degradation; Interchannel interference; Macrocell networks; Microcell networks; Mobile antennas; Multiaccess communication; Receiving antennas; System performance; Transmitters; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 1998. VTC 98. 48th IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-4320-4
DOI :
10.1109/VETEC.1998.686197
