Performance Improvement of Wireless Communications Using Frequency Hopping Spread Spectrum

• 作者: Naser Hossein Motlagh
• 来源期刊: 通讯、网络与系统学国际期刊(英文)
• 学科: 工学
• 关键词: FREQUENCY HOPPING SPREAD SPECTRUM ADAPTIVE FREQUENCY HOPPING Performance Evaluation
• 年，卷（期）: 2010,（10）
• 页码范围: 805-810
• 页数: 6页
• 分类号: TN92

摘要

To improve the performance of short-range wireless communications, channel quality must be improved by avoiding interference and multi-path fading. Frequency hopping spread spectrum(FHSS) is a transmission technique where the carrier hops from frequency to frequency. For frequency hopping a mechanism must be designed so that the data can be transmitted in a clear channel and avoid congested channels. Adaptive frequency hopping is a system which is used to improve immunity toward frequency interference by avoiding using congested frequency channels in hopping sequence. In this paper mathematical modelling is used to simulate and analyze the performance improvement by using FHSS with popular modulation schemes, and also the hopping channel situations are investigated.