Date Added: Feb 2013
The Request-To-Send and Clear-To-Send (RTS/CTS) mechanism is widely used in wireless networks in order to transmit data from source to destination in order to reduce packet collisions (due to Hidden node) and, thus, achieve high throughput. It solves problem over Carrier Sense Multiple Access (CSMA), but also arises some additional problems that degrade the performance of RTS/CTS mechanism. These problems are "Exposed Node Problem", "RTS -induced and CTS -induced Problem" and "Masked Node Problem". In this paper, the authors are going to discuss the problems of RTS/CTS mechanism, and give a modification in RTS/CTS mechanism which overcomes the problem of this mechanism and also increases the performance of RTS/CTS mechanism.