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An Efficient ACO-SA Hybrid Metaheuristic for the Synchronization of Single Frequency Networks in Broadcasting

机译:广播中单频网络同步的高效ACO-SA混合元启发式方法

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The treasure of any radio communication network provider is the set of available frequencies and the challenge is to use the frequencies in the best possible way. Single Frequency Networks (SFNs) are broadcast networks where several transmitters send the same signal over the same frequency. They allow more efficient utilization of the radio spectrum in comparaison to traditional Multi Frequency Networks (MFNs) that use one different frequency per transmitter. SFN Synchronization Problem (SFNSP) is known to be a NP-hard problem. The aim of this paper is to present an original hybrid metaheuristic (ACO-SA) based on Ant Colony Optimization (ACO) and Simulated Annealing (SA) to solve SFNSP. Experimental results obtained with our hybrid ACO-SA on real-world benchmarks provided by the french telecommunication company named TDF, show drastic runtime improvement over existing approaches, and also quality improvement in comparison with existing SFN's synchronizations in the field of TV broadcasting in France.
机译:任何无线电通信网络提供商的宝藏都是一组可用频率,而挑战在于以最佳方式使用这些频率。单频网络(SFN)是广播网络,其中多个发射机以相同的频率发送相同的信号。与传统的多频网络(MFN)(每个发射器使用一个不同的频率)相比,它们可以更有效地利用无线电频谱。 SFN同步问题(SFNSP)被认为是NP难题。本文的目的是提出一种基于蚁群优化(ACO)和模拟退火(SA)的原始混合元启发法(ACO-SA)来解决SFNSP。在法国电信公司TDF提供的基于真实世界基准的混合ACO-SA上获得的实验结果表明,与现有方法相比,运行时间有了显着改善,与法国电视广播领域中现有SFN同步相比,质量也得到了改善。

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