Analysis of Exposed Node Problem and Security Concerns in Adhoc Networks



T. L. Singal, Prachi Sharma and Ravneet Kaur


“The paper contains the analysis of exposed node problem in mobile adhoc network. The problem is that before starting the transmission, a station wants to know whether there is activity around the receiver. If the transmission is taking place around the receiver, there will be collisions and the effective throughput will be decreased. A detailed study of the simulation on these exposed nodes is carried out using the GloMoSim software to calculate the throughput for the various transmission powers and different protocols, so as to compare the performances by varying different parameters. These simulation results with GloMoSim corroborate our theoretical analysis.”


Exposed node,Adhoc network, Simulator, MANET GloMoSim, AODV, CSMA


  • ANSI/IEEE Standards 802.11, (1999) ‘Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications’.
  • Gummalla, C.V. and Limb, J.O. (2000) ‘Wireless medium access control protocols,’ IEEE Communications Surveys & Tutorials, 3, 2-15.
  • Xu, K., Gerla, M. and Bae, S. (2003) ‘Effectiveness of RTS/CTS handshake in IEEE 802.11 based ad hoc networks’, 1, 107-123
  • Xu, K., Gerla, M. and Bae, S. (2002) ‘How Effective is the IEEE 802.11 RTS/CTS Handshake in Ad Hoc Networks?’, IEEE Globecom’02, 17-21 November, California University, Los Angeles, USA.
  • Bhargava, S. and Agrawal, D.P. (2001) ‘Security Enhancements in AODV Protocol for Wireless Ad Hoc Networks’, Vehicular Technology Conference, 7-11 Oct., Atlantic City, NJ.

RNI Registration No. CHAENG/2016/68678