Distributed Frequency Synchronization for Global Synchronization in Wireless Mesh Networks

In this paper, our focus is to assure a global frequency synchronization in OFDMA-based wireless mesh networks with local information. To acquire the global synchronization in distributed manner, we propose a novel distributed frequency synchronization (DFS) method. DFS is a method that carrier frequencies of distributed nodes converge to a common value by repetitive estimation and averaging step and sharing step. Experimental results show that DFS achieves noteworthy better synchronization success probability than existing schemes in OFDMA-based mesh networks where the estimation error is presented.

• Jung-Hyun Kim
• Jihyung Kim
• Kwangjae Lim
• Dong Seung Kwon

• OFDMA systems
• Frequency synchronization
• Distributed networks
• Multiple groups.

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