Hidden & exposed terminal problem

hidden & exposed terminal problem are wireless technology problems

1. HIDDEN & EXPOSED TERMINAL AND NEAR & FAR TERMINAL PRESENTED BY : Prof. VIRENDRA KHATARKAR ASST PROFESSOR DEPARTMENT OF COMPUTER SCIENCE AND ENGINEERING BIST, BHOPAL

2. Topic : Hidden & Exposed and Near & Far Terminal By : Prof. Virendra khatarkar Hidden Terminal Exposed Terminal Near Terminal Far Terminal

3. Topic : Hidden Terminal problem By : Prof. Virendra khatarkar

4. Topic : Hidden Terminal problem By : Prof. Virendra khatarkar HIDDEN TERMINAL A sends to B , C cannot receive A C wants to send B , C senses a free medium (CS fails) collison at B , A cannot receive the collison (CD fails) A is hidden for C

5. Topic : Exposed Terminal problem By : Prof. Virendra khatarkar

6. Topic : Exposed Terminal problem By : Prof. Virendra khatarkar EXPOSED TERMINAL B sends to A, C wants to send to another terminal D C has to wait, CS signals a medium in use but A is outside the radio range of C, therefore waiting is not necessary C is “exposed” to B 

7. Topic : Near & Far Terminal problem By : Prof. Virendra khatarkar C B A

8. Topic : Near & Far Terminal problem By : Prof. Virendra khatarkar NEAR & FAR TERMINAL Terminals A and B send, C receives Signal strength decreases proportional to the square of the distance The signal of terminal B therefore drowns out A’s signal C cannot receive A 

9. Topic : Near & Far Terminal problem By : Prof. Virendra khatarkar THANK YOU