Title :
Improved frame synchronization for mobile packet radio systems with standard VLSI synchronous input/output devices
Author :
Driessen, Peter F.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Abstract :
An improved frame synchronization technique is proposed for mobile and portable packet radio systems which use standard VLSI synchronous input/output (SIO) hardware devices for data transmission. This technique overcomes the performance limitations inherent in the SIO 2-byte hardware frame sync function by using a multiple-byte marker and additional software for frame sync. When compared to systems using a dedicated multibyte hardware correlator external to the SIO, the analysis shows that the proposed software technique can achieve the same sync reliability, but requires a longer marker. Thus the proposed technique is considered attractive as a software upgrade to an existing system. For a specified bit error rate (BER) and acceptable false alarm probability, a tradeoff can be made of the cost of using additional marker bits needed by the proposed technique against the cost of a dedicated hardware correlator
Keywords :
VLSI; data communication systems; mobile radio systems; packet switching; synchronisation; (BER; VLSI synchronous input/output devices; bit error rate; data transmission; dedicated hardware correlator; false alarm probability; frame synchronization; mobile packet radio systems; multiple-byte marker; portable packet radio systems; software; sync reliability; Bit error rate; Correlators; Costs; Forward error correction; Hardware; Microprocessors; Mobile computing; Packet radio networks; Software performance; Very large scale integration;
Conference_Titel :
Vehicular Technology Conference, 1988, IEEE 38th
Conference_Location :
Philadelphia, PA
DOI :
10.1109/VETEC.1988.195390