Improving Network Life Time of Wireless Sensor Network Using LT Codes Under Erasure Environment
V. Nithya, Рамачандран Баласубраманиан · International Review on Computers and Software (IRECOS) · 2013
In recent years, Wireless Sensor Network (WSN) finds application in Multimedia Broadcast and Multicast Service (MBMS). Reliability is the prime concern as some of the transmitted information gets lost in the erasure channel. As the application involves broadcast or multicast delivery of multimedia data through an erasure channel, Automatic Repeat request (ARQ) will not be good choice for improving the reliability as it leads to more energy wastage. Therefore, in this paper, we investigate the use of forward error correction scheme for energy conservation in WSN under erasure channel conditions. We found that the use of Luby Transform (LT) codes for IEEE 802. 15. 4 compliant WSN conserves more energy when compared to retransmission strategy. Other performance measures such as Bit Error Rate (BER) and throughput also showed improved results.