Mitigating Constant Jamming in Cognitive Radio Networks Using Hybrid FEC Code

Abstract

Abstract-The task of detecting and mitigating Cognitive Radios (CRs) operating as constant jammers in a Cognitive Radio network (CRN) can be very daunting. The CR constant jammers prey on the adaptable functionalities of CRN so as to cause serious denial of service to the users of the network. In addition, these jammers are capable of introducing value faults in pathological cases as a result of being able to manipulate transmitted data. In previous research, we have investigated the performance of CRNs operating in the presence of jamming attacks that are capable of introducing value faults. The results obtained show that CR constant jammers are very effective in their operations and they are capable of bringing down the entire CRN when their jamming rate is just about 30%. In this paper, we show that none of the existing anti-jamming solutions are able to mitigate CR jammers that are capable of manipulating communicated data. As a result, we propose a hybrid forward error correction (FEC) code that incorporates data integrity checking into an efficient forward error correction mechanism. The approach uses data redundancy to remove the need for retransmission of lost or detected manipulated data caused by jamming attacks by exploring the recovery block component of the proposed solution. We present the algorithm for our proposed solution and evaluate its performance through simulation. The result of our analysis using suitable performance metrics shows that the solution is very efficient and robust against the different rates of jamming perpetrated by constant jammers.

Two-Tier Hierarchical Cluster Based Topology in Wireless Sensor Networks for Contention Based Protocol Suite

“…The reactive jammers are more dangerous than the other type since the jammer node listen the activities on the network and transmits a random signal immediately on the detection the legitimate activity in order to disrupt legal communication activities on the network [17]- [19].…”

Performance analysis of anti-jamming technique using angle of Arrival estimation in CRN's

“…The probability of being jammed by an attacker is low in this scheme due to the use of a Q-function based approach. Authors in [14] present a hybrid forward error correction (FEC) code that provides data integrity service using data redundancy check. The lost or manipulated data caused by jamming attacks need not be retransmitted in this approach.…”

“…Victor et al [14] A hybrid forward error correction code (combination of the Efficient and robust against attacks by only constant jammers Raptor code and the Secure Hash Algorithm-2) that provides in a Cooperative Spectrum Sensing CR. Other types of data integrity service using data redundancy check.…”