Title :
Steganography in 802.15.4 wireless communication
Author :
Mehta, Ankur M. ; Lanzisera, Steven ; Pister, Kristofer S J
Abstract :
A popular physical layer used in wireless sensor networks is the IEEE 802.15.4 standard, which provides for a single coding scheme with constant data rate regardless of channel properties and noise conditions. This paper proposes and simulates a simple steganography method to embed additional information in 802.15.4 data packets when link quality permits, with a modest increase in signal to noise ratio (SNR) required for the same error performance of the underlying 802.15.4 communication. By expanding the code set to include a cluster of 31 ancillary codes for each original 802.15.4 code word, 5 bits can be steganographically overlaid on each 4 bit legacy symbol, allowing this additional data to be transmitted without the knowledge of legacy 802.15.4 receivers over links of greater than 1.95 dB SNR. Increasing the information content by 3.5 dB in this manner can lower the overall energy per bit to noise ratio by 0.1 dB.
Keywords :
channel coding; steganography; telecommunication security; wireless sensor networks; IEEE 802.15.4 wireless communication; channel properties; data packets; link quality; physical layer; signal-to-noise ratio; single coding scheme; steganography; wireless sensor networks; AWGN; Additive white noise; Communication standards; Gaussian noise; Physical layer; Radio frequency; Signal to noise ratio; Steganography; Wireless communication; Wireless sensor networks; 802.15.4; Steganography; Wireless Communication;
Conference_Titel :
Advanced Networks and Telecommunication Systems, 2008. ANTS '08. 2nd International Symposium on
Conference_Location :
Mumbai
Print_ISBN :
978-1-4244-3600-2
Electronic_ISBN :
978-1-4244-3601-9
DOI :
10.1109/ANTS.2008.4937785
