Title :
New reduced state space BCJR algorithms for the ISI channel
Author :
Anderson, John B. ; Prlja, Adnan ; Rusek, Fredrik
Author_Institution :
Electr. & Inf. Tech. Dept., Lund Univ., Lund, Sweden
fDate :
June 28 2009-July 3 2009
Abstract :
A critical component in detection under intersymbol interference (ISI) and in turbo equalization is the BCJR algorithm. We combine three approaches to reducing its computation. First, energy seen by the receiver is focused by a phase-maximizing all pass filter; an improvement on this older idea is proposed. Then the state used by the BCJR is broken into an offset state and a main state. Finally, some reduced-state BCJR procedures are evaluated. These receivers are tested by ISI detection and turbo equalization over strongly bandlimited channels.
Keywords :
equalisers; intersymbol interference; state-space methods; turbo codes; wireless channels; ISI channel; bandlimited channel; intersymbol interference; reduced state space BCJR algorithms; turbo equalization; AWGN; Band pass filters; Decoding; Intersymbol interference; Matched filters; Narrowband; Pulse modulation; State-space methods; Testing; Wireless communication;
Conference_Titel :
Information Theory, 2009. ISIT 2009. IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-4312-3
Electronic_ISBN :
978-1-4244-4313-0
DOI :
10.1109/ISIT.2009.5205622
