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The Performance Improvement of BASK System for Giga-Bit MODEM Using the Fuzzy System

Author(s): Ki-Hwan Eom | Kyo-Hwan Hyun | Kyung-Kwon Jung

Journal: International Journal of Communications, Network and System Sciences
ISSN 1913-3715

Volume: 03;
Issue: 05;
Start page: 441;
Date: 2010;
Original page

Keywords: BASK | Giga-Bit MODEM | Bandwidth | Low Pass Filter | Fuzzy System

In this paper we propose an automatic bandwidth control method for the performance improvement of Binary Amplitude Shift Keying (BASK) system for Giga-bit Modem in millimeter band. To improve the performance of the BASK system with a fixed bandwidth, the proposed method is to adjust a bandwidth of low pass filter in receiver using the fuzzy system. The BASK system consists of a high speed shutter of the transmitter and a counter and a repeater of receiver. The repeater consists of four stage converters, and a converter is constructed with a low pass filter and a limiter. The inputs to the fuzzy system are the reminder and integral of remainder of counter, and output is a bandwidth. We used a Viterbi algorithm to find the optimum detection from output of the counter. Simulation results show that the proposed system improves the performance compared to the fixed bandwidth.

Tango Jona
Tangokurs Rapperswil-Jona

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