Title :
Upper bounding the performance of a RAKE receiver operating with imperfect phase estimates
Author :
Quirk, Kevin J. ; Milstein, Laurence B.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., San Diego, La Jolla, CA, USA
Abstract :
As larger diversity and coding gains are introduced into spread spectrum systems to mitigate the effects of multipath fading and thermal noise, system performance is increasingly being limited by the channel estimation error. In order to allocate system resources to maximize system performance, performance measures incorporating the effects of estimation errors are needed. An upper bound on an approximation to the probability of bit error for a RAKE receiver operating with imperfect phase estimates is presented along with an example of its use in allocating transmit energy between data and estimation symbols in a packet-based system
Keywords :
approximation theory; diversity reception; encoding; error analysis; error statistics; maximum likelihood estimation; multipath channels; multiuser channels; packet radio networks; phase estimation; radio receivers; spread spectrum communication; thermal noise; RAKE receiver; SS system; bit error probability approximation; channel estimation error; coding gain; data symbols; diversity gain; estimation symbols; imperfect phase estimates; maximum-likelihood channel phase estimation; multipath fading; packet-based system; performance measures; spread spectrum systems; system performance; system resource allocation; thermal noise; transmit energy allocation; upper bound; Channel estimation; Estimation error; Fading; Multipath channels; Performance gain; Phase estimation; Resource management; Spread spectrum communication; System performance; Upper bound;
Conference_Titel :
MILCOM 2000. 21st Century Military Communications Conference Proceedings
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-6521-6
DOI :
10.1109/MILCOM.2000.904031
