Convergence analysis of iterative detectors for narrow-band multiple access
Paper in proceeding, 2002
Convergence analysis of iterative detectors
for narrow-band multiple access is performed by using
extrinsic information transfer charts. The system has no
bandwidth expansion, so K users are using the same bandwidth
as one single user. The load (the number of bits
per channel use) of the system is therefore higher than the
load in, for example, conventional CDMA systems. The
analysis provide useful guidelines how to combine outer
codes with the chosen mapper for different loads of the
system. Both memoryless mappers and differential mappers
are evaluated. The limitations of the system measured
in the maximum number of users and the required
SNR for different scenarios are presented.
Author
Fredrik Brännström
Chalmers, Department of Computer Engineering
Tor Aulin
Chalmers, Department of Computer Engineering
Lars K. Rasmussen
Alex J. Grant
IEEE Global Telecommunications Conference (GLOBECOM '02), Taipei, Taiwan, Nov. 2002
1373-1377
Areas of Advance
Information and Communication Technology
Subject Categories
Telecommunications
DOI
10.1109/GLOCOM.2002.1188423