Cross layered adaptive rate optimized irregular LDPC for WSN

T. Sasikala *

Department of Electronics and Communication Engineering, Misrimal Navajee Munoth Jain Engineering College, Chennai-600097, India.
 
Research Article
International Journal of Science and Research Archive, 2024, 11(02), 1668–1674.
Article DOI: 10.30574/ijsra.2024.11.2.0655
 
Publication history: 
Received on 06 March 2024; revised on 15 April 2024; accepted on 18 April 2024
 
Abstract: 
This paper proposes a cross layered adaptive rate optimized technique that uses irregular low-density parity-check (LDPC) codes over an additive white Gaussian noise (AWGN) channel in wireless sensor networks (WSNs). Irregular LDPC is used as error control code. Cross layer design along with error control code gives the energy balance in the network. This new algorithm uses the physical layer parameters such as coherence time of the channel, BER and SNR and the routing layer parameter such as demanded data rate to determine the rate of the LDPC coder. The algorithm adaptively changes the code rates as ¾, ½, and 1/3. We have conducted the simulations to verify our methods using MATLAB and find that the proposed scheme increases the network performance in terms of energy balance and quality of data by using irregular LDPC codes in the cross-layer environment.
 
Keywords: 
Cross layer; Wireless sensor network; Error control code; Energy balance; Code rate; Irregular LDPC
 
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