Title :
Energy efficient wireless sensor networks with transmission diversity
Author_Institution :
Dept. of Electr. & Comput. Eng., State Univ. of New York, Binghamton, NY, USA
Abstract :
A new transmission scheme which uses two transmitting sensors and space-time block codes to provide transmission diversity in distributed wireless sensor networks with neither antenna-arrays nor transmission synchronisation is proposed. Full diversity and full rate are achieved which enhances power/bandwidth efficiency and reliability. Simulations demonstrate its superior performance in saving transmission energy.
Keywords :
block codes; diversity reception; space-time codes; wireless sensor networks; Alamouti space-time block code; distributed wireless sensor networks; energy efficient wireless sensor networks; multi-hop wireless network; multi-transmission scheme; power/bandwidth efficiency; reliability; transmission diversity; transmission energy saving;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20031103
