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

• 作者: Ki-Hwan Eom Kyo-Hwan Hyun Kyung-Kwon Jung
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 数学
• 关键词: BASK Giga-Bit MODEM BANDWIDTH Low Pass Filter Fuzzy SYSTEM
• 年，卷（期）: 2010,（5）
• 页码范围: 441-445
• 页数: 5页
• 分类号: O1

摘要

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.