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›› 2011, Vol. 28 ›› Issue (3): 375-381.DOI: 10.7523/j.issn.2095-6134.2011.3.015

• Research Articles • Previous Articles     Next Articles

Cross-layer energy consumption optimal model and its solution algorithm in wireless sensor networks

LI Li-Juan1, ZHAO Tong2   

  1. 1. West Station, Beijing Railway Bureau, Beijing 100055, China;
    2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China
  • Received:2010-07-05 Revised:2010-07-23 Online:2011-05-15

Abstract:

We propose a cross-layer optimal design for the two layers: medium access and routing. First, an energy consumption function is discussed based on CSMA transmission mechanism. Secondly, the path cumulative energy consumption routing policy is proposed based on CSMA transmission energy consumption. An optimal programming model is established, and it aims at not only minimization of the total energy consumption, but also maximization of the network lifetime. The amount of transmission at each node in the network can be achieved by solving the programming model and it is the basis of the calculation of the network lifetime. One numerical example shows that the cross-layer model is efficient.

Key words: wireless sensor network, energy consumption, cross-layer analysis, multihop communication

CLC Number: