Title :
Performance Comparison of Error Compensation Techniques with Multipath Transmission in Wireless Multimedia Sensor Networks
Author :
Sarisaray, Pinar ; Gur, Gurkan ; Baydere, Sebnem ; Harmanc, E.
Author_Institution :
Dept. of Comput. Eng., Bahcesehir Univ., Istanbul
Abstract :
Due to the proliferation of the multimedia applications over unreliable medium like wireless networks, robust image and video communication have become more important. In this paper, we consider the transmission distortions on the multimedia data due to both channel impairments and instant node failures for Wireless Multimedia Sensor Networks (WMSN). Two techniques are investigated to compensate the multimedia distortions at the expense of incurring additional delays and/or wasting bandwidth resources. First technique is an error concealment technique utilizing discrete wavelet transform for embedding downsized replicas of original image into itself, thereby mitigating degradations in a backward-compatible scheme. The other is Reed-Solomon coding utilizing additional information bits to correct bit/symbol errors. Two techniques are also integrated with multipath transmission to provide fault tolerance. Performance results show that error concealment with multipath transmission technique (ECMF) is more promising to compensate for losses due to unreliable channels and instant node failures than Reed-Solomon coding with multipath transmission technique (RSMF) in WMSN.
Keywords :
Reed-Solomon codes; discrete wavelet transforms; multimedia communication; wireless sensor networks; Reed-Solomon coding; channel impairments; discrete wavelet transform; error compensation techniques; error concealment technique; multimedia distortions; multipath transmission technique; robust image communication; robust video communication; wireless multimedia sensor networks; Added delay; Bandwidth; Degradation; Discrete wavelet transforms; Error compensation; Error correction; Fault tolerance; Reed-Solomon codes; Robustness; Wireless sensor networks;
Conference_Titel :
Modeling, Analysis, and Simulation of Computer and Telecommunication Systems, 2007. MASCOTS '07. 15th International Symposium on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-1853-4
Electronic_ISBN :
1526-7539
DOI :
10.1109/MASCOTS.2007.50