Title :
Frequency hopping CDMA for flexible third generation wireless networks
Author :
Fitton, M.P. ; Nix, A.R. ; Beach, M.A.
Author_Institution :
Centre for Commun. Res., Bristol Univ., UK
Abstract :
Frequency hopping spread spectrum (FH-SS) has found a number of applications in cellular systems, wireless local loop, and wireless local area networks. The suitability of slow frequency hopping code division multiple access (SFH-CDMA) is characterised, for application in third generation wireless communications. An FH architecture displays inherent frequency diversity, and consequently is resilient to the effects of intersymbol interference arising from significant time dispersion in the channel. Furthermore, interference diversity of FH-CDMA results in a robust air interface technique. It is demonstrated that FH-CDMA can support the medium rate service bearers required for UMTS and PCS, whilst providing high cellular capacity in the urban environment
Keywords :
cellular radio; cochannel interference; code division multiple access; diversity reception; intersymbol interference; land mobile radio; personal communication networks; FH-SS; PCS; SFH-CDMA; UMTS; air interface; cellular capacity; cellular systems; cochannel interference; code division multiple access; frequency diversity; frequency hopping spread spectrum; interference diversity; intersymbol interference; medium rate service bearers; slow frequency hopping; third generation wireless networks; time dispersion; urban environment; wireless local area networks; wireless local loop; Cellular networks; Character generation; Displays; Frequency conversion; Frequency diversity; Intersymbol interference; Multiaccess communication; Spread spectrum communication; Wireless LAN; Wireless communication;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.644385