DocumentCode :
1772804
Title :
Exploiting error estimating codes for packet length adaptation in wireless sensor networks
Author :
Wei Dong ; Pinxing Zhang ; Chun Chen ; Jiajun Bu
Author_Institution :
Coll. of Comput. Sci., Zhejiang Univ., Hangzhou, China
fYear :
2014
fDate :
June 30 2014-July 3 2014
Firstpage :
311
Lastpage :
319
Abstract :
We propose Plena, a packet length adaptation scheme exploiting recently proposed Error Estimating Codes for low power sensor networks. We carefully consider two low power MAC protocols, i.e., X-MAC and LPP, in modeling the energy consumptions of different packet lengths. Based on the modeling and analysis, we give closed form solutions for the optimal packet length in terms of energy efficiency. We employ the recently proposed error estimating codes (EEC) for estimating the bit error rate (BER). EEC allows for instant estimation of the BER in a partially correct packet, making it possible for predicting packet reception ratios (PRRs) at different packet lengths without the need of direct measurement in an iterative process. We evaluate Plena´s computation overhead based on the commonly used TelosB nodes. Results show that the computation overhead of Plena is acceptably small. We also perform extensive simulations to study the performance of Plena under different configurations. Results show that Plena achieves better energy efficiency than existing works.
Keywords :
access protocols; codes; error statistics; iterative methods; wireless sensor networks; BER; EEC; LPP; Plena; X-MAC; bit error rate estimation; closed form solutions; computation overhead; energy consumption modeling; energy efficiency; error estimating codes; iterative process; low power MAC protocols; low power sensor networks; packet length adaptation scheme; packet reception ratio prediction; wireless sensor networks; Adaptation models; Bit error rate; Measurement; Media Access Protocol; Payloads; Probes; Receivers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Sensing, Communication, and Networking (SECON), 2014 Eleventh Annual IEEE International Conference on
Conference_Location :
Singapore
Type :
conf
DOI :
10.1109/SAHCN.2014.6990367
Filename :
6990367
Link To Document :
بازگشت