Title :
Pipelined MMSE equalizers for direct-sequence spread-spectrum CDMA channels
Author :
He, Linhai ; Madhow, Upamanyu
Author_Institution :
Coordinated Sci. Lab., Illinois Univ., Urbana, IL, USA
fDate :
29 Sep-2 Oct 1996
Abstract :
MMSE interference suppression has been shown to provide adaptive near-far resistant receivers for direct-sequence CDMA systems. We examine the feasibility of pipelining adaptive algorithms for this application in order to support high data rates at low power. The pipelined algorithms are simplified using relaxed look-ahead. Simulation results show that the pipelined versions of both the LMS and RLS algorithms offer performance comparable to that of their serial counterparts
Keywords :
adaptive equalisers; code division multiple access; interference suppression; least mean squares methods; pipeline processing; pseudonoise codes; radio receivers; radiofrequency interference; recursive estimation; spread spectrum communication; telecommunication channels; LMS algorithm; MMSE interference suppression; RLS algorithm; adaptive near-far resistant receivers; direct-sequence CDMA systems; direct-sequence spread-spectrum CDMA channels; high data rates; low power; pipelined MMSE equalizers; pipelined adaptive algorithms; relaxed look-ahead; simulation results; Adaptive algorithm; Delay; Energy consumption; Equalizers; Interference suppression; Least squares approximation; Least squares methods; Multiaccess communication; Pipeline processing; Resonance light scattering; Spread spectrum communication;
Conference_Titel :
Universal Personal Communications, 1996. Record., 1996 5th IEEE International Conference on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-3300-4
DOI :
10.1109/ICUPC.1996.557778
