A method for overload handling in synchronized multiplex system
Juhro Takase · Electronics and Communications in Japan (Part I Communications) · 1986
Abstract This paper presents theoretical relations between transmission characteristic and increase of effective binary access channels in existing synchronized digital multiplex communication systems such as FDM and TDM to absorb traffic burst when connected to digital channels whose capacity is larger than their traffic capacity. At BER = 103 in noise‐free transmission and without off‐set of the demodulator, a 10 percent increase of digital channels is obtained by using a discrete amplitude level of 4 (2‐bit alternating binary encoding) and 14 percent increase by the amplitude level of 8 (3‐bit alternating binary encoding). At BER = 10‐4 with transmission S/N of 30 dB and demodulator off‐set of ‐23 dB, the increase of channels is 5 percent both by the amplitude levels of 4 and 8. The case of amplitude level of 4 is most preferable considering the relation between BER and the increase of access channels.