Title :
An energy-efficient virtual MIMO transmission scheme for cluster-based wireless sensor networks
Author :
Ding, Jie ; Liu, Danpu ; Wang, Xin ; Wu, Huari
Author_Institution :
Key Lab. of Universal Wireless Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
In this paper, a cluster-based virtual multiple-input multiple-output (MIMO) transmission scheme is proposed for energy-constrained wireless sensor networks. Compared with previous work, there are two new aspects in this scheme. Firstly, the proposed scheme makes use of multiple cluster heads cooperative transmission instead of one. Secondly, the space-time block coding (STBC) based virtual MIMO technique is incorporated into low-energy adaptive clustering hierarchy (LEACH). In addition, an analysis model based on energy consumption of the whole network is developed to compare with the LEACH scheme. Numerical and simulation results show that the proposed scheme is more energy-efficient than LEACH when the distance to sink is over a given threshold.
Keywords :
MIMO communication; pattern clustering; space-time block codes; wireless sensor networks; analysis model; cluster based virtual multiple-input multiple-output transmission; cluster based wireless sensor networks; energy consumption; energy-constrained wireless sensor networks; energy-efficient virtual MIMO transmission; low-energy adaptive clustering hierarchy; multiple cluster heads cooperative transmission; space-time block coding; virtual MIMO technique; Heating; LEACH; MIMO; STBC; energy efficiency; wireless sensor network;
Conference_Titel :
Communication Technology (ICCT), 2010 12th IEEE International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-6868-3
DOI :
10.1109/ICCT.2010.5688684
