A posteriori Rake finger selection in space-time coded CDMA systems

Author

Kim, Sang Wu ; Kim, Eun Yong

Author_Institution

Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA

Volume

5

fYear

2005

fDate

2-2 Dec. 2005

Lastpage

3168

Abstract

We present the optimal Rake finger selection criterion that minimizes the a posteriori probability of symbol error in space-time block coded code division multiple access (CDMA) systems. It can serve as a benchmark for the performance of all a posteriori Rake finger selection criteria. Then we present suboptimal, but more practical, finger selection criteria based on a posteriori symbol error probability bounds, and analyze the bit error probability as a function of constellation sizes and number of resolvable paths. Simulation results show that there is a significant gain over the traditional signal strength-based selection criterion

Keywords

code division multiple access; error statistics; radio receivers; space-time codes; Rake finger selection; a posteriori symbol error probability bounds; bit error probability; code division multiple access; signal strength; space-time coded CDMA systems; Bandwidth; Block codes; Diversity reception; Error probability; Fading; Fingers; Multiaccess communication; Multipath channels; Signal resolution; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE

Conference_Location

St. Louis, MO

Print_ISBN

0-7803-9414-3

Type

conf

DOI

10.1109/GLOCOM.2005.1578340

Filename

1578340