Title :
On the performance of multicarrier RAKE systems
Author :
Xu, Weiping ; Milstein, Laurence B.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Abstract :
We integrate the multicarrier signaling technique and the RAKE receiver to design a DS CDMA system with the capability to increase the data rate, mitigate the effect of correlation among the various subcarriers, and suppress partial-band interference. In the proposed system, a data sequence is serial-to-parallel converted, and multicarrier DS CDMA is used on each of the parallel data streams, The receiver provides a RAKE for each subcarrier, and the outputs of the RAKEs are combined by a maximal-ratio combiner. We derive the average probability of error of the system and compare the results with those of both a single carrier RAKE system and a multicarrier DS CDMA system, when multiple access interference, partial-band interference and multipath interference are present
Keywords :
code division multiple access; coding errors; correlation methods; error statistics; fading; interference suppression; multipath channels; probability; radio receivers; radiofrequency interference; spread spectrum communication; DS CDMA system design; average error probability; correlated fading channel model; data rate; data sequence; maximal-ratio combiner; multicarrier DS CDMA system; multicarrier RAKE systems; multipath interference; multiple access interference; parallel data streams; partial-band interference supression; serial-to-parallel conversion; single carrier RAKE system; subcarriers; Bandwidth; Degradation; Drives; Fading; Interference suppression; Multiaccess communication; Multipath channels; Multiple access interference; RAKE receivers; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.632557
