Title :
The performance of TCM 16-QAM with equalization, diversity and slow frequency hopping for wideband mobile communications
Author :
Wu, Jianjun ; Yan, R.H. ; Aghvami, A.H.
Author_Institution :
AT&T Bell Labs., UK
Abstract :
The use of high level trellis-coded modulation such as TCM 16-QAM, with equalization, diversity, interleaving and slow frequency hopping is investigated for wideband mobile communications. The symbol error rate (SER) performance of those systems in presence of intersymbol interference (ISI) and Rayleigh fading is evaluated by theoretical analysis and computer simulation. Several schemes of combining equalizers with diversity are evaluated by computer simulations. It shows that by choosing a proper interleaving size, number of the frequency hopping and the combining scheme of equalization and space diversity, the proposed system gives considerable performance improvement and can cope with the frequency selective multipath fading in wideband mobile communication systems
Keywords :
Rayleigh channels; adaptive equalisers; broadband networks; diversity reception; error statistics; intersymbol interference; land mobile radio; modulation coding; multipath channels; quadrature amplitude modulation; spread spectrum communication; trellis coded modulation; ISI; Rayleigh fading; SER performance; TCM 16-QAM; adaptive equalization; combining scheme; computer simulation; frequency selective multipath fading; high level trellis-coded modulation; interleaving size; intersymbol interference; performance improvement; slow frequency hopping; space diversity; spread spectrum communication; symbol error rate; wideband mobile communications; Computer simulation; Diversity reception; Error analysis; Frequency diversity; Interleaved codes; Intersymbol interference; Mobile communication; Rayleigh channels; Spread spectrum communication; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-4872-9
DOI :
10.1109/PIMRC.1998.731414
