{"title":"Distributed Frequency Synchronization for Global Synchronization in Wireless Mesh Networks","authors":"Jung-Hyun Kim, Jihyung Kim, Kwangjae Lim, Dong Seung Kwon","volume":70,"journal":"International Journal of Electronics and Communication Engineering","pagesStart":1211,"pagesEnd":1216,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/6297","abstract":"
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.<\/p>\r\n","references":"[1] M. Maroti, B. Kusy, G. Simon, A. Ledeczi, \"The flooding time synchronization\r\nprotocol,\" SenSys -04, pp. 39-49, November, 2004.\r\n[2] K.-Y. Cheng, K.-S. Lui, Y.-C. Wu, and V. Tam, \"A distributed multihop time synchronization protocol for wireless sensor networks using pairwise\r\nbroadcast synchronization,\" IEEE Trans. Wireless Commun., Vol. 8, No.\r\n4, pp. 1764-1772, April, 2009.\r\n[3] B. Sundararaman, U. Buy, and A. D. Kshemkalyani, \"Clock synchronization\r\nfor wireless sensor networks: a survey,\" Ad-Hoc Networks, vol. 3, no. 3, pp. 281-323, Mar. 2005.\r\n[4] Q. Li, and D. Rus, \"Global clock synchronization in sensor networks,\"\r\nIEEE Trans. Comput., vol. 55, no. 2, pp. 214-226, February, 2006.\r\n[5] M. K. Maggs, S. G. O-Keefe, and D. V. Thiel, : -Consensus clock\r\nsynchronization for wireless sensor networks,- IEEE Sensors Journal, vol.\r\n12, no. 6, pp. 2269-2277, June, 2012.\r\n[6] I. F. Akyildiz, and X. Wang, \"Wireless Mesh Networks,\" John Wiley & Sons, 2009.\r\n[7] IEEE 802.16m, Part 16: Air Interface for Broadband Wireless Access\r\nSystems: Advanced Air Interface, May, 2011.\r\n[8] Recommendation ITU-R M.1225, \"Guidelines for the evaluation of radio\r\ntransmission technologies for IMT-2000,\" 1997.\r\n[9] T. Pollet, M. Van Bladel, and M. Moeneclaey, \"BER sensitivity of OFDM\r\nsystems to carrier frequency offset and Weiner phase noise,\" IEEE Trans.\r\nCommun., Vol. 43, No. 2\/3\/4, pp. 191-193, February\/March\/April, 1995.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 70, 2012"}