Weighted random frequency hopping in the presence of narrowband interference

Frequency hopping spread spectrum is an effective technique used to mitigate the effects of narrowband interference. Traditional random frequency hopping (RFH), which can be categorized as a channel ignorant scheme, gives worse performance than channel-aware schemes such as matched frequency hopping, clipped matched frequency hopping and advanced frequency hopping, in frequency selective fading channels. However, these channel-aware schemes are more easily disrupted by adaptive jammers. In this paper, a modified RFH scheme is proposed that enhances the performance of RFH in frequency selective fading channels while also providing better protection against jamming.