On the use of TCH Codes in ultraWide band systems
Cercas, Cercas, F.
On the use of TCH Codes in ultraWide band systems, Proc IASTED International Conf. on Signal Processing, Pattern Recognition and Applications - SPPRA, Innsbruck, Austria, Vol. *, pp. * - *, February, 2011.
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TCH (Tomlinson, Cercas, Hughes) codes are very low rate
codes with good overall performance. Moreover, TCH sequences
have good auto-correlation characteristics, making
them suitable for spread spectrum systems. In this paper
we consider the use of TCH codes in standard UWB systems
(time-hopping and direct sequence employing pulseposition
and pulse-amplitude modulations) where performance
results are comparable to other pseudo-random
codes. A performance advantage is gained when TCH
codes are used for combined coding and spreading in Ultrawide