International Journal of Emerging Technology and Advanced Engineering (IJETAE)
This fourth-generation wireless networks may require an integration of Mobile Ad hoc NETworks (MANET) into external network to enhance the flexibility of the communication and roaming. This phenomenon is well-suited for commercial and military applications which yield additional benefit of roaming. However, integration of MANET with external network poses a serious security challenge for communication because of open and distributed nature of the ad hoc network. This paper discusses about the 4 G network architecture, its challenges and finally the use of MANET in 4G networks.