Title :
Carrier suppressed RAKE receiver operation for CDMA cellular communications
Author_Institution :
Sansearch Inc., San Diego, CA, USA
fDate :
29 Jun-4 Jul 1997
Abstract :
The paper presents a way to operate the RAKE receiver in a CDMA cellular communication system without the aid of the unmodulated cell unique PN, i.e., the pilot for the purpose of increasing the capacity with less transmission power. The receiver operation with suppressed carrier was accomplished simply through first despreading one known Walsh code, then wiping out the user´s data either by noncoherent energy measurement in timing tracking or by taking ratio of I and Q channel estimation in coherent demodulation
Keywords :
cellular radio; code division multiple access; demodulation; digital radio; pseudonoise codes; radio receivers; spread spectrum communication; CDMA; PN offset; RAKE receiver operation; Walsh code; cellular communication system; suppressed carrier; Delay estimation; Fading; Frequency estimation; Matched filters; Multiaccess communication; Multipath channels; Phase distortion; Phase modulation; Sampling methods; Timing;
Conference_Titel :
Information Theory. 1997. Proceedings., 1997 IEEE International Symposium on
Conference_Location :
Ulm
Print_ISBN :
0-7803-3956-8
DOI :
10.1109/ISIT.1997.612961
