Energy Efficiency in Wireless Sensor Networks using Data Aggregation

  S.Sahana,  Dr.R.Amutha

Communication systems have been marching towards rapid developments due to the advancements in science and technology. Wireless Sensor Networks (WSNs) have been gaining importance recently due to the development of low-cost nodes and electronics. But WSNs always come with certain constraints like battery power, resources etc. In order to extend the network lifetime and to minimize the energy consumption, it is essential to propose techniques that will serve the purpose. In clustered Sensor networks Cooperative Multiple-Input-Multiple-Output (CMIMO) can be used to bring in diversity among the different nodes in the cluster. By doing so, all the nodes in the cluster will cooperatively transmit the sensed data to the sink or access point (AP). Data aggregation is one more technique which can be combined with CMIMO to reduce the number of bits present in the data that is transmitted to the destination or AP. In any communication ninety percent of the energy is spent in transmission of the data. So it is essential to compress the data before transmission. In terms of clustered WSNs, nodes that are spatially close to each other will sense more or less the same information like, for example, temperature, pressure, humidity etc. As a result there is redundant data and this redundancy should be removed to enable energy-efficient transmission. The technique combining CMIMO and Data Aggregation is named as CMIMO-A.

Keywords- Wireless Sensor Networks, Energy Efficiency, CMIMO, Data Aggregation, Spatial Correlation

Unique Identification Number - IJEDRCP1403028
Page Number(s) - 137-141
Pubished in - Volume 2 | Issue NCETSE Conference | March 2014
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  S.Sahana,  Dr.R.Amutha,   "Energy Efficiency in Wireless Sensor Networks using Data Aggregation", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.2, Issue NCETSE Conference, pp.137-141, March 2014, Available at :http://www.ijedr.org/papers/IJEDRCP1403028.pdf