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http://dx.doi.org/10.5573/ieie.2014.51.6.124

An Optimal Design of a TDMA Baseband Modem for Relay Protocol  

Bae, Yongwook (Dept. of Avionics Eng., Kyungwoon University)
Ahn, Byoungchul (Dept. of Avionics Eng., Kyungwoon University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.6, 2014 , pp. 124-131 More about this Journal
Abstract
This paper describes a design of an adaptive baseband modem based on TDMA(time division multiple access) with a relay protocol function for wireless personal area networks. The designed baseband modem is controlled by a master synchronization signal and can be configured a relay network up to 14 hops. For efficient data relay communications, the internal buffer design is optimized by implementing a priority memory bus controller to a single port memory. And the priority memory bus controller is also designed to minimize the number of synthesized logic gates. To implement the synchronization function of the narrowband TDMA relay communication, the number of gates has been reduced by dividing the frame synchronization circuits and the network slot synchronization circuits. By using these methods, the number of gates are used about 37%(34,000 gates) on Xilinx FPGA XC6SLX9 which has 90,000 gates. For the 1024-bit frame size with a 32-bit synchronization word, the communication reception rate is 96.4%. The measured maximum transmission delay of the designed baseband modem is 230.4 msec for the 14-hop relay communication.
Keywords
baseband modem; frame synchronization; relay protocol; FPGA; TDMA;
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Times Cited By KSCI : 1  (Citation Analysis)
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