Optimal and suboptimal decision rules for parallel code acquisition in chip-asynchronous DS/SS systems

We investigate optimal and suboptimal. decision rules for parallel code acquisition in chip-asynchronous direct-sequence spread-spectrum (DS/SS), systems. The conventional decision rule for parallel acquisition is to choose the largest correlator output of a receiver. However, such a scheme is optimum only for chip-synchronous models. In this letter, an optimal decision rule is derived based on the maximum-likelihood criterion for chip-asynchronous models. A simpler suboptimal decision rule is also discussed. The performance of the optimum and suboptimum decision rules is compared to that of the conventional decision rule. Numerical results show, that for chip-asynchronous models, both the optimal and suboptimal decision rules outperform the conventional decision rule.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2002-07
Language
ENG
Citation

IEEE SIGNAL PROCESSING LETTERS, v.9, no.7, pp.189 - 192

ISSN
1070-9908
URI
http://hdl.handle.net/10203/864
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
IJ079.pdf(238.53 kB)Download
  • Hit : 421
  • Download : 159
  • Cited 0 times in thomson ci
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡClick to seewebofscience_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0