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Construction of Optimal Frequency Hopping Sequence Set with Low-Hit-Zone
Xinyu Tian1,2, Hongyu Han1,2, Xianhua Niu3
1College of Computer Science, Sichuan Normal University, Chengdu 610101, China.
Entropy (Basel, Switzerland)
|July 29, 2023
Summary
This study introduces new low-hit-zone frequency-hopping sequence sets for quasi-synchronous frequency-hopping multiple access systems. These novel sequences effectively minimize mutual interference and are proven optimal.
Area of Science:
- Electrical Engineering
- Telecommunications
- Information Theory
Background:
- Quasi-synchronous frequency-hopping multiple access (QS-FHMA) systems utilize frequency-hopping sequences (FHS) to manage multiple access.
- Low-hit-zone (LHZ) FHS sets are crucial for mitigating mutual interference (MI) in these systems.
- Existing LHZ FHS sets have limitations in parameters and construction methods.
Purpose of the Study:
- To propose novel constructions for low-hit-zone frequency-hopping sequence sets.
- To introduce new parameters for LHZ FHS sets.
- To enhance the performance of QS-FHMA systems by reducing mutual interference.
Main Methods:
- Development of three new constructions for LHZ FHS sets.
- Application of interleaving techniques in sequence design.
- Verification of sequence optimality against the Peng-Fan-Lee bound.
Main Results:
- Successfully generated three distinct LHZ FHS sets with new parameters.
- Demonstrated the effectiveness of interleaving techniques in constructing optimal sequences.
- Confirmed that the proposed LHZ FHS sets meet the Peng-Fan-Lee bound, indicating optimal MI reduction.
Conclusions:
- The proposed interleaving techniques provide effective methods for constructing optimal LHZ FHS sets.
- The new LHZ FHS sets offer improved performance for QS-FHMA systems by minimizing mutual interference.
- This research contributes to the advancement of efficient and interference-free wireless communication systems.
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