Title :
Interference cancellation and capacity of a cellular CDMA system based on multihop fast frequency hopping
Author :
Yamamura, Hideya ; Kohno, Ryuji ; Imai, Hideki
Author_Institution :
Toyoda Autom. Loom Works Ltd., Aichi, Japan
Abstract :
The authors propose co-channel interference cancellation for a cellular spread-spectrum or code-division multiple access (CDMA) system based on multihop fast frequency hopping (FFH) and investigate the capacity of the cellular multihop-FFH/CDMA system. It is shown that the bit error probability for the proposed system can be superior to that for the cellular CDMA based on a direct-sequence CDMA system in a selective fading channel. Assuming that the interference cancellation system can eliminate the co-channel interference signal, the channel capacity of a cellular CDMA system based on a single-hop FFH scheme is superior to that of the multihop FFH scheme without using the interference cancellation system. However, for the proposed system, it is necessary to possess a large number of antenna elements in order to suppress the co-channel interference
Keywords :
cellular radio; channel capacity; code division multiple access; interference suppression; spread spectrum communication; CDMA system; bit error probability; cellular radio; channel capacity; co-channel interference cancellation; code-division multiple access; multihop fast frequency hopping; spread spectrum system; Adaptive arrays; Antenna arrays; Capacity planning; Fading; Frequency conversion; Interchannel interference; Interference cancellation; Multiaccess communication; Signal processing; Spread spectrum communication;
Conference_Titel :
Vehicular Technology Conference, 1991. Gateway to the Future Technology in Motion., 41st IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-87942-582-2
DOI :
10.1109/VETEC.1991.140447
