NDLI: Multiple-Input Turbo Code for Joint Data Aggregation, Source and Channel Coding in Wireless Sensor Networks

Content Provider	IEEE Xplore Digital Library
Author	Hasan Cam
Copyright Year	2006
Description	Author affiliation: Computer Science and Engineering Department, Arizona State University, Tempe, AZ 85287. hasan.cam@asu.edu (Hasan Cam)
Abstract	In wireless sensor networks, the data collected by neighboring sensor nodes show high correlation. To exploit the data correlation for reducing the amount of data while transmitting data from sensor nodes to their base station, this paper introduces multiple-input turbo (MIT) code to implement a joint source coding and data aggregation. If there exists an explicit communication between two sensor nodes, their correlated data bits are first interleaved with each other in accordance with their correlation relation, and then are encoded and punctured. On the other hand, if there is no direct communication between sensor nodes, the data sequences are encoded with respect to side information based on the distributed source coding principles. Whenever the bit error rate needs to be improved, MIT code is used for channel coding as well. MIT code employs partial interleaving to reduce energy consumption and memory size requirements for even small-size information blocks. The simulation results show that the bit error rate performance of MIT code outperforms turbo codes to some extent, even if MIT code implements partial interleaving on interleavers.
Starting Page	3530
Ending Page	3535
File Size	130910
Page Count	6
File Format	PDF
ISBN	1424403553
ISSN	81649547
DOI	10.1109/ICC.2006.255619
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-06-11
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Turbo codes Channel coding Wireless sensor networks Sensor phenomena and characterization Source coding Bit error rate Interleaved codes Energy consumption Energy efficiency Decoding partial interleaver Sensor networks source and channel coding data aggregation turbo code correlated data
Content Type	Text
Resource Type	Article

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