Title :
Recycling Polluted Packet at the Physical Layer in Wireless Network Coding
Author :
Sangmun Kim ; Sang Wu Kim
Author_Institution :
Dept. of Math., Yonsei Univ., Seoul, South Korea
Abstract :
We take a physical-layer perspective in detecting the falsely injected packet (pollution attack) and removing it from the polluted packet to restore the true coded packet in wireless network coding system. The proposed scheme "recycles" the polluted packet by discarding only the falsely injected packet and uses the remaining part for recovering the message. By doing so, it avoids packet re-transmission and substantially improves the bandwidth efficiency as well as the reliability of decoding.
Keywords :
bandwidth allocation; network coding; radio networks; telecommunication network reliability; telecommunication security; bandwidth efficiency improvement; decoding reliability improvement; falsely injected packet; physical-layer perspective; polluted packet recycling; pollution attack; wireless network coding; Cryptography; Decoding; Network coding; Relays; Signal to noise ratio; Throughput; Wireless networks; Network coding; packet recycling; pollution attack;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.030413.122469
