Walsh-functions pulse shaping in MSK-type signals.

Document Type : Original Article

Author

Department of Communication Engineering, Philadelphia University, Jordan.

Abstract

Abstract:
In this paper a new pulse shaping method in MSK-type signaling is proposed. The
proposed pulse shaping method is based on the Walsh functions, and is used to design
the optimum pulse shapes in MSK-type signaling. Simulation results show that the
proposed pulse shaping method attains improvement in spectral efficiency (i.e., bps/Hz)
over MSK, for the same channel bandwidth. The fractional out-of-band power is used to
compare the behavior of the system under the new proposed technique. As well, error
rate performance in such system is used in the evaluation of this work. The results
reveal that good improvement can be attained in spectral efficiency at the expense of
error rate performance when these functions are used. The results also reveal that the
channel employing MSK system must be as linear as possible for the transmission of
such signals.

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