Title :
A finger implementation of CDMA receiver with staggered burst pilot in reverse link
Author :
Na, J. ; Kang, Y. ; Lee, H.B.
Author_Institution :
Electron. & Telecommun. Res. Inst., Taejon, South Korea
Abstract :
A code division multiple access system with staggered burst pilot (CDMA/BP) is considered for implementation. This paper mainly focuses on the finger (RAKE arm) implementation in uplink demodulator. Burst pilot is used for periodic channel estimation at superframe interval as it is useful for initial channel estimation. While the pilot signal is not present, data-based channel estimation (DBCE) is used for coherent detection. It is simulated to work correctly with closed loop power control under fading channel environment. Finger implementation consists of two parts. One is data based channel estimation and detection block. The other is pilot based channel estimation (PBCE) and pilot tracking loop block. Complexity estimate shows that it requires about ten thousand gates for the implementation using the XC4000 family
Keywords :
cellular radio; code division multiple access; demodulation; digital radio; fading; land mobile radio; parameter estimation; power control; pseudonoise codes; radio links; radio receivers; signal detection; spread spectrum communication; CDMA receiver; RAKE arm; XC4000 family; closed loop power control; code division multiple access system; coherent detection; data-based channel estimation; detection block; digital cellular system; fading channel environment; finger implementation; periodic channel estimation; pilot based channel estimation; pilot signal; pilot tracking loop block; reverse link; staggered burst pilot; superframe interval; uplink demodulator; Channel estimation; Demodulation; Fading; Fingers; Multiaccess communication; Personal communication networks; Power control; RAKE receivers; Standardization; Tracking loops;
Conference_Titel :
Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on
Conference_Location :
Mainz
Print_ISBN :
0-7803-3567-8
DOI :
10.1109/ISSSTA.1996.563738
