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| Signaling Cost Analysis of Location Management in Long Term Evolution |
| Ma Jun-chao Wang Xian |
| School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China |
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Abstract In order to tackle the defects of the Location Management (LM) scheme used in second generation (2G) and third generation (3G) mobile networks, forth generation (4G) network Long Term Evolution (LTE) uses a new LM scheme, which is called a Tracking Area List (TAL)-based LM scheme and the signaling cost of the TAL-based LM scheme is determined by the allocation of TALs. This paper develops a mathematical model of embedded Markov chain to analyze the signaling cost of the TAL-based scheme for a local User Equipment (UE) whose activity region is relatively fixed. Mathematical formulas for the LU cost and the paging cost are derived. With these formulas, an optimal TAL allocation strategy that can minimize the signaling cost can be found.
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Received: 20 November 2013
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Corresponding Authors:
Wang Xian
E-mail: drwangxian@gmail.com
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2014, Vol. 36 
