A new construction of long-period optimal frequency hopping sequence set based on TOD information

Abstract

In a quasi-synchronous frequency hopping networking system, the system needs to assign mutually orthogonal frequency hopping sequences to subnets according to the agreement, and reliable communication is achieved under the condition of relative time delay exists. In order to achieve frequency orthogonality under relative time delay and to ensure the unpredictability of the sequences, this paper proposes a long-period optimal frequency hopping sequence set construction method. First, the base sequence is constructed using TOD information available in real-time and has a long period. Then, the frequency hopping sequences are orthogonalized to each other based on the orthogonal frequency hopping coding technique, which can obtain the set of frequency hopping sequences with good performance.